1
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Mondal S, Chakraborty S, Khanra S, Chakraborty S, Pal S, Brandão P, Paul ND. A Phosphine-Free Air-Stable Mn(II)-Catalyst for Sustainable Synthesis of Quinazolin-4(3 H)-ones, Quinolines, and Quinoxalines in Water. J Org Chem 2024; 89:5250-5265. [PMID: 38554095 DOI: 10.1021/acs.joc.3c02579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/01/2024]
Abstract
The synthesis, characterization, and catalytic application of a new phosphine-free, well-defined, water-soluble, and air-stable Mn(II)-catalyst [Mn(L)(H2O)2Cl](Cl) ([1]Cl) featuring a 1,10-phenanthroline based tridentate pincer ligand, 2-(1H-pyrazol-1-yl)-1,10-phenanthroline (L), in dehydrogenative functionalization of alcohols to various N-heterocycles such as quinazolin-4(3H)-ones, quinolines, and quinoxalines are reported here. A wide array of multisubstituted quinazolin-4(3H)-ones were prepared in water under air following two pathways via the dehydrogenative coupling of alcohols with 2-aminobenzamides and 2-aminobenzonitriles, respectively. 2-Aminobenzyl alcohol and ketones bearing active methylene group were used as coupling partners for synthesizing quinoline derivatives, and various quinoxaline derivatives were prepared by coupling vicinal diols and 1,2-diamines. In all cases, the reaction proceeded smoothly using our Mn(II)-catalyst [1]Cl in water under air, affording the desired N-heterocycles in satisfactory yields starting from cheap and readily accessible precursors. Gram-scale synthesis of the compounds indicates the industrial relevance of our synthetic strategy. Control experiments were performed to understand and unveil the plausible reaction mechanism.
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Affiliation(s)
- Sucheta Mondal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Botanic Garden, Howrah, Shibpur 711103, India
| | - Subhajit Chakraborty
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Botanic Garden, Howrah, Shibpur 711103, India
| | - Subhankar Khanra
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Botanic Garden, Howrah, Shibpur 711103, India
| | - Santana Chakraborty
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Botanic Garden, Howrah, Shibpur 711103, India
| | - Shrestha Pal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Botanic Garden, Howrah, Shibpur 711103, India
| | - Paula Brandão
- Departamento de Química/CICECO, Instituto de Materiais de Aveiro, Universidade de Aveiro, Aveiro 3810-193, Portugal
| | - Nanda D Paul
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Botanic Garden, Howrah, Shibpur 711103, India
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2
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Mondal A, Pal D, Phukan HJ, Roy M, Kumar S, Purkayastha S, Guha AK, Srimani D. Manganese Complex Catalyzed Sequential Multi-component Reaction: Enroute to a Quinoline-Derived Azafluorenes. CHEMSUSCHEM 2024; 17:e202301138. [PMID: 38096176 DOI: 10.1002/cssc.202301138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 11/06/2023] [Indexed: 01/09/2024]
Abstract
The development of innovative synthetic strategies for constructing complex molecular structures is the heart of organic chemistry. This significance of novel reactions or reaction sequences would further enhance if they permitted the synthesis of new classes of structural motifs, which have not been previously created. The research on the synthesis of heterocyclic compounds is one of the most active topics in organic chemistry due to the widespread application of N-heterocycles in life and material science. The development of a new catalytic process that employs first-row transition metals to produce a range of heterocycles from renewable raw materials is considered highly sustainable approach. This would be more advantageous if done in an eco-friendly and atom-efficient manner. Herein we introduce, the synthesis of various new quinoline based azafluorenes via sequential dehydrogenative multicomponent reaction (MCR) followed by C(sp3)-H hydroxylation and annulation. Our newly developed, Mn-complexes have the ability to direct the reaction in order to achieve a high amount of desired functionalized heterocycles while minimizing the possibility of multiple side reactions. We also performed a series of control experiments, hydride trapping experiments, reaction kinetics, catalytic intermediate and DFT studies to comprehend the detailed reaction route and the catalyst's function in the MCR sequence.
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Affiliation(s)
- Avijit Mondal
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam, 781039, India
| | - Debjyoti Pal
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam, 781039, India
| | - Hirak Jyoti Phukan
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam, 781039, India
| | - Mithu Roy
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam, 781039, India
| | - Saurabh Kumar
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam, 781039, India
| | | | - Ankur Kanti Guha
- Advanced Computational Chemistry Centre, Cotton University, Guwahati, 781001, India
| | - Dipankar Srimani
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam, 781039, India
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3
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Pennamuthiriyan A, Rengan R. Nickel Pincer Complexes Catalyzed Sustainable Synthesis of 3,4-Dihydro-2 H-1,2,4-benzothiadiazine-1,1-dioxides via Acceptorless Dehydrogenative Coupling of Primary Alcohols. J Org Chem 2024; 89:2494-2504. [PMID: 38326039 DOI: 10.1021/acs.joc.3c02508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
We report the atom-economic and sustainable synthesis of biologically important 3,4-dihydro-2H-1,2,4-benzothiadiazine-1,1-dioxide (DHBD) derivatives from readily available aromatic primary alcohols and 2-aminobenzenesulfonamide catalyzed by nickel(II)-N∧N∧S pincer-type complexes. The synthesized nickel complexes have been well-studied by elemental and spectroscopic (FT-IR, NMR, and HRMS) analyses. The solid-state molecular structure of complex 2 has been authenticated by a single-crystal X-ray diffraction study. Furthermore, a series of 3,4-dihydro-2H-1,2,4-benzothiadiazine-1,1-dioxide derivatives have been synthesized (24 examples) utilizing a 3 mol % Ni(II) catalyst through acceptorless dehydrogenative coupling of benzyl alcohols with benzenesulfonamide. Gratifyingly, the catalytic protocol is highly selective with the yield up to 93% and produces eco-friendly water/hydrogen gas as byproducts. The control experiments and plausible mechanistic investigations indicate that the coupling of the in situ generated aldehyde with benzenesulfonamide leads to the desired product. In addition, a large-scale synthesis of one of the thiadiazine derivatives unveils the synthetic usefulness of the current methodology.
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Affiliation(s)
- Anandaraj Pennamuthiriyan
- Centre for Organometallic Chemistry, School of Chemistry, Bharathidasan University, Tiruchirappalli 620024, Tamilnadu, India
| | - Ramesh Rengan
- Centre for Organometallic Chemistry, School of Chemistry, Bharathidasan University, Tiruchirappalli 620024, Tamilnadu, India
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4
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Mondal A, Phukan HJ, Pal D, Kumar S, Roy M, Srimani D. Well-Defined Mn(II)-complex Catalyzed Switchable De(hydrogenative) Csp 3 -H Functionalization of Methyl Heteroarenes: A Sustainable Approach for Diversification of Heterocyclic Motifs. Chemistry 2024; 30:e202303315. [PMID: 37933814 DOI: 10.1002/chem.202303315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 11/08/2023]
Abstract
Catalytic activities of Mn(I) complexes derived from expensive MnBr(CO)5 salt have been explored in various dehydrogenative transformations. However, the reactivity and selectivity of inexpensive high spin Mn(II) complexes are uncommon. Herein, we have synthesized four new Mn(II) complexes and explored switchable alkenylation and alkylation of methyl heteroarenes employing a single Mn(II)catalyst. The developed protocol selectively furnishes a series of functionalized E-heteroarenes and C-alkylated heteroarenes with good to excellent yields. Various medicinally and synthetically useful compounds are successfully synthesized using our developed protocol. Various controls and kinetics experiments were executed to shed light on the mechaism,which reveals that α-C-H bond breaking of alcohol is the slowest step.
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Affiliation(s)
- Avijit Mondal
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam, 781039, India
| | - Hirak Jyoti Phukan
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam, 781039, India
| | - Debjyoti Pal
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam, 781039, India
| | - Saurabh Kumar
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam, 781039, India
| | - Mithu Roy
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam, 781039, India
| | - Dipankar Srimani
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam, 781039, India
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5
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Kahar NM, Jadhav PP, Dawande SG. Rhodium(II)-catalyzed synthesis of 2-aminoquinoline derivatives from 2-quinolones and N-sulfonyl-1,2,3-triazoles. Org Biomol Chem 2023; 21:8267-8272. [PMID: 37807927 DOI: 10.1039/d3ob00971h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Herein, we disclose a rhodium(II) catalyzed efficient and convenient method for the synthesis of 2-aminoquinoline derivatives from 2-quinolones and N-sulfonyl-1,2,3-triazoles. The reaction provides rapid access to a series of 2-aminoquinolines with moderate to excellent yields. The reaction proceeds via quinolone-hydroxyquinoline tautomerization/O-H insertion to a rhodium(II)-aza vinyl carbene intermediate generated by denitrogenation of triazole followed by rearrangement to deliver the desired product. Furthermore, we demonstrated the iodine-mediated dealkylation of a 2-aminoquinoline derivative.
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Affiliation(s)
- Nilesh M Kahar
- Department of Chemistry, Institute of Chemical Technology, Mumbai, Maharashtra, 400019, India
| | - Pankaj P Jadhav
- Department of Chemistry, Institute of Chemical Technology, Mumbai, Maharashtra, 400019, India
| | - Sudam G Dawande
- Department of Chemistry, Indian Institute of Technology, Madras, Tamil Nadu, 600036, India.
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6
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Avula B, Reddivari CKR, Muchumarri RMR, Eraganaboyina S, Zyryanov GV, Nemallapudi BR. Recent Advances in the Synthesis of Quinoxalines. A Mini Review. Polycycl Aromat Compd 2023. [DOI: 10.1080/10406638.2023.2167215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Balakrishna Avula
- Department of Chemistry, Rajeev Gandhi Memorial College of Engineering and Technology (Autonomous), Nandyal, India
| | | | | | - Suneetha Eraganaboyina
- Department of Chemistry, Rajeev Gandhi Memorial College of Engineering and Technology (Autonomous), Nandyal, India
| | - Grigory V. Zyryanov
- Chemical Engineering Institute, Ural Federal University, Yekaterinburg, Russia
- Ural Division of the Russian Academy of Sciences, I. Ya. Postovskiy Institute of Organic Synthesis, Yekaterinburg, Russia
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7
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Hao Z, Zhou X, Ma Z, Zhang C, Han Z, Lin J, Lu GL. Dehydrogenative Synthesis of Quinolines and Quinazolines via Ligand-Free Cobalt-Catalyzed Cyclization of 2-Aminoaryl Alcohols with Ketones or Nitriles. J Org Chem 2022; 87:12596-12607. [PMID: 36162131 DOI: 10.1021/acs.joc.2c00734] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We present a convenient and efficient protocol to synthesize quinolines and quinazolines in one pot under mild conditions. A variety of substituted quinolines were synthesized in good to excellent yields (up to 97% yield) from the dehydrogenative cyclizations of 2-aminoaryl alcohols and ketones catalyzed by readily available Co(OAc)2·4H2O. This cobalt catalytic system also showed high activity in the reactions of 2-aminobenzyl alcohols with nitriles, affording various quinazoline derivatives (up to 95% yield). The present protocol offers an environmentally benign approach for the synthesis of N-heterocycles by employing an earth-abundant cobalt salt under ligand-free conditions.
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Affiliation(s)
- Zhiqiang Hao
- National Experimental Chemistry Teaching Center (Hebei Normal University), Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, People's Republic of China
| | - Xiaoyu Zhou
- National Experimental Chemistry Teaching Center (Hebei Normal University), Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, People's Republic of China
| | - Zongwen Ma
- National Experimental Chemistry Teaching Center (Hebei Normal University), Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, People's Republic of China
| | - Caicai Zhang
- National Experimental Chemistry Teaching Center (Hebei Normal University), Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, People's Republic of China
| | - Zhangang Han
- National Experimental Chemistry Teaching Center (Hebei Normal University), Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, People's Republic of China
| | - Jin Lin
- National Experimental Chemistry Teaching Center (Hebei Normal University), Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, People's Republic of China
| | - Guo-Liang Lu
- Auckland Cancer Society Research Centre, Faculty of Medical and Health Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.,Maurice Wilkins Centre, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
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8
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Ha MT, Nguyen NT, Tran NH, Ho QV, Son NT, Nguyen VH, Nguyen H, Do DV, Hung TQ, Mai BK, Dang TT. Cu‐catalyzed Synthesis of Quinolines by Dehydrogenative Reaction of 2‐Aminobenzyl Alcohol and Ketones: A Combined Experimental and Computational Study. Chem Asian J 2022; 17:e202200909. [DOI: 10.1002/asia.202200909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 09/15/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Minh Tuan Ha
- VNU-HUS: Vietnam National University University of Science Department of Chemistry VIET NAM
| | - Nina Thi Nguyen
- VNU-HUS: Vietnam National University University of Science Department of Chemistry VIET NAM
| | - Ngoc Huyen Tran
- VNU-HUS: Vietnam National University University of Science Department of Chemistry VIET NAM
| | - Quoc Viet Ho
- VNU-HUS: Vietnam National University University of Science Department of Chemistry VIET NAM
| | - Nguyen Thi Son
- VNU-HUS: Vietnam National University University of Science Department of Chemistry VIET NAM
| | - Van Ha Nguyen
- VNU-HUS: Vietnam National University University of Science Department of Chemistry VIET NAM
| | - Hien Nguyen
- Hanoi National University of Education Department of Chemistry VIET NAM
| | - Dang Van Do
- VNU-HUS: Vietnam National University University of Science Department of Chemistry VIET NAM
| | - Tran Quang Hung
- Vietnamese Academy of Science: Vietnam Academy of Science and Technology Department of Chemistry VIET NAM
| | - Binh Khanh Mai
- University of Pittsburgh Department of Chemistry 219 Parkman Avenue 15260 Pittsburgh UNITED STATES
| | - Tuan Thanh Dang
- VNU-HUS: Vietnam National University University of Science Department of Chemistry VIET NAM
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9
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Zinc ferrite as reusable and green catalyst for synthesis of quinoxaline derivatives. J CHEM SCI 2022. [DOI: 10.1007/s12039-022-02074-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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10
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Maji A, Gupta S, Maji M, Kundu S. Well-Defined Phosphine-Free Manganese(II)-Complex-Catalyzed Synthesis of Quinolines, Pyrroles, and Pyridines. J Org Chem 2022; 87:8351-8367. [PMID: 35726206 DOI: 10.1021/acs.joc.2c00167] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Herein, we report a simple, phosphine-free, and inexpensive catalytic system based on a manganese(II) complex for synthesizing different important N-heterocycles such as quinolines, pyrroles, and pyridines from amino alcohols and ketones. Several control experiments, kinetic studies, and DFT calculations were carried out to support the plausible reaction mechanism. We also detected two potential intermediates in the catalytic cycle using ESI-MS analysis. Based on these studies, a metal-ligand cooperative mechanism was proposed.
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Affiliation(s)
- Ankur Maji
- Department of Chemistry, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India
| | - Shivangi Gupta
- Department of Chemistry, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India
| | - Milan Maji
- Department of Chemistry, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India
| | - Sabuj Kundu
- Department of Chemistry, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India
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11
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Arango-Daza JC, Lluna-Galán C, Izquierdo-Aranda L, Cabrero-Antonino JR, Adam R. Heterogeneous Pd-Catalyzed Efficient Synthesis of Imidazolones via Dehydrogenative Condensation between Ureas and 1,2-Diols. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01423] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Juan Camilo Arango-Daza
- Instituto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Av. de los Naranjos s/n, 46022 València, Spain
| | - Carles Lluna-Galán
- Instituto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Av. de los Naranjos s/n, 46022 València, Spain
| | - Luis Izquierdo-Aranda
- Instituto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Av. de los Naranjos s/n, 46022 València, Spain
| | - Jose R. Cabrero-Antonino
- Instituto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Av. de los Naranjos s/n, 46022 València, Spain
| | - Rosa Adam
- Instituto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Av. de los Naranjos s/n, 46022 València, Spain
- Departament de Química Orgànica, Facultat de Farmàcia, Universitat de València, Av. Vicent Andrés Estellés s/n, Burjassot, 46100 València, Spain
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12
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Wang Q, Zhu B, Zhang X, Shi G, Liu J, Xu Q. Direct construction of quinoxaline derivatives from vicinal diols and o‐nitroanilines via NaOH‐mediated intermolecular cascade redox and annulation reactions. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Qi Wang
- Yangzhou University School of Chemistry and Chemical Engineering 225002 Yangzhou CHINA
| | - Boran Zhu
- Yangzhou University School of Chemistry and Chemical Engineering 225002 Yangzhou CHINA
| | - Xiaolan Zhang
- Yangzhou University School of Chemistry and Chemical Engineering 225002 Yangzhou CHINA
| | - Guojun Shi
- Yangzhou University School of Chemistry and Chemical Engineering 225002 Yangzhou CHINA
| | - Jianping Liu
- Wenzhou University College of Chemistry and Materials Engineering 325035 Wenzhou CHINA
| | - Qing Xu
- Wenzhou University College of Chemistry and Materials Engineering Wenzhou University Town 325035 Wenzhou CHINA
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13
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An overview of quinoxaline synthesis by green methods: recent reports. PHYSICAL SCIENCES REVIEWS 2022. [DOI: 10.1515/psr-2021-0086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Quinoxalines and their derivatives belong to an important class of bicyclic aromatic heterocyclic system, also known as benzopyrazines, containing a benzene ring and a pyrazine ring. They have attracted considerable attention over the years due to their potential biological and pharmaceutical properties. A wide range of synthetic strategies is reported in this significant area of research. The present review showcases recent research advances in the synthesis of quinoxaline derivatives following environmentally benign approaches.
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14
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Mondal R, Guin AK, Chakraborty G, Paul ND. Metal-ligand cooperative approaches in homogeneous catalysis using transition metal complex catalysts of redox noninnocent ligands. Org Biomol Chem 2022; 20:296-328. [PMID: 34904619 DOI: 10.1039/d1ob01153g] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Catalysis offers a straightforward route to prepare various value-added molecules starting from readily available raw materials. The catalytic reactions mostly involve multi-electron transformations. Hence, compared to the inexpensive and readily available 3d-metals, the 4d and 5d-transition metals get an extra advantage for performing multi-electron catalytic reactions as the heavier transition metals prefer two-electron redox events. However, for sustainable development, these expensive and scarce heavy metal-based catalysts need to be replaced by inexpensive, environmentally benign, and economically affordable 3d-metal catalysts. In this regard, a metal-ligand cooperative approach involving transition metal complexes of redox noninnocent ligands offers an attractive alternative. The synergistic participation of redox-active ligands during electron transfer events allows multi-electron transformations using 3d-metal catalysts and allows interesting chemical transformations using 4d and 5d-metals as well. Herein we summarize an up-to-date literature report on the metal-ligand cooperative approaches using transition metal complexes of redox noninnocent ligands as catalysts for a few selected types of catalytic reactions.
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Affiliation(s)
- Rakesh Mondal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur Botanic Garden, Howrah 711103, India.
| | - Amit Kumar Guin
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur Botanic Garden, Howrah 711103, India.
| | - Gargi Chakraborty
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur Botanic Garden, Howrah 711103, India.
| | - Nanda D Paul
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur Botanic Garden, Howrah 711103, India.
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15
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Borthakur I, Sau A, Kundu S. Cobalt-catalyzed dehydrogenative functionalization of alcohols: Progress and future prospect. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214257] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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16
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Yu K, Chen Q, Liu W. Iron-catalysed quinoline synthesis via acceptorless dehydrogenative coupling. Org Chem Front 2022. [DOI: 10.1039/d2qo01386j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
An iron-catalysed atom-economical and straightforward methodology for the synthesis of quinolines from α-2-aminoaryl alcohols and secondary alcohols is presented.
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Affiliation(s)
- Ke Yu
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Qianjin Chen
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Weiping Liu
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, P. R. China
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17
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Xia F, Lu YQ, Sun P, Guo QY, Shi QL, Zhang JZ, Qiu C. A formal [4 + 2] annulation of diamines and prop-2-ynyl sulfonium salts for the synthesis of tetrahydroquinoxalines. Org Biomol Chem 2022; 20:8415-8419. [DOI: 10.1039/d2ob01590k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A formal [4 + 2] annulation of diamines and prop-2-ynyl sulfonium salts was developed.
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Affiliation(s)
- Fei Xia
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Yu-Qian Lu
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Peng Sun
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Qiu-Yan Guo
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Qiao-Li Shi
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Jun-Zhe Zhang
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Chong Qiu
- Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
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18
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Mondal R, Guin AK, Pal S, Mondal S, Paul ND. Sustainable synthesis of pyrazoles using alcohols as the primary feedstock by an iron catalyzed tandem C–C and C–N coupling approach. Org Chem Front 2022. [DOI: 10.1039/d2qo01196d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report two new efficient iron-catalyzed synthetic strategies for multicomponent synthesis of tri-substituted pyrazoles using biomass-derived alcohols as the primary feedstock.
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Affiliation(s)
- Rakesh Mondal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Amit Kumar Guin
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Subhasree Pal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Sucheta Mondal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Nanda D. Paul
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
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19
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Tian H, Xue W, Wu J, Yang Z, Lu H, Tang C. A general and practical bifunctional cobalt catalytic system for N-heterocycle assembly via acceptorless dehydrogenation. Org Chem Front 2022. [DOI: 10.1039/d2qo00683a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A novel and highly-efficient N-heterocycle assembly methodology catalyzed by a cobalt-N,N-bidentate complex via acceptorless dehydrogenation coupling of alcohols and amines has been established.
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Affiliation(s)
- Haitao Tian
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China
| | - Wenxuan Xue
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China
| | - Jingtao Wu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China
| | - Ziguang Yang
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, USA
| | - Hongcheng Lu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China
| | - Conghui Tang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China
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20
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Bhattacharyya D, Adhikari P, Deori K, Das A. Ruthenium pincer complex catalyzed efficient synthesis of quinoline, 2-styrylquinoline and quinazoline derivatives via acceptorless dehydrogenative coupling reactions. Catal Sci Technol 2022. [DOI: 10.1039/d2cy01030e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of N-heterocycles has been considered an emerging area of chemical research due to their extensive utilization in pharmaceuticals, materials science, and natural product synthesis.
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Affiliation(s)
- Dipanjan Bhattacharyya
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
| | - Priyanka Adhikari
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
| | - Kritartha Deori
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
| | - Animesh Das
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
- Centre for Sustainable Polymers, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
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21
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Hofmann N, Hultzsch KC. Borrowing Hydrogen and Acceptorless Dehydrogenative Coupling in the Multicomponent Synthesis of N‐Heterocycles: A Comparison between Base and Noble Metal Catalysis. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100695] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Natalie Hofmann
- University of Vienna, Faculty of Chemistry, Institute of Chemical Catalysis Währinger Straße 38 1090 Vienna Austria
| | - Kai C. Hultzsch
- University of Vienna, Faculty of Chemistry, Institute of Chemical Catalysis Währinger Straße 38 1090 Vienna Austria
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22
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Mondal R, Chakraborty G, Guin AK, Pal S, Paul ND. Iron catalyzed metal-ligand cooperative approaches towards sustainable synthesis of quinolines and quinazolin-4(3H)-ones. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132479] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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23
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Maji M, Borthakur I, Guria S, Singha S, Kundu S. Direct access to 2-(N-alkylamino)pyrimidines via ruthenium catalyzed tandem multicomponent annulation/N-alkylation. J Catal 2021. [DOI: 10.1016/j.jcat.2021.08.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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24
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Mondal R, Chakraborty G, Guin AK, Sarkar S, Paul ND. Iron-Catalyzed Alkyne-Based Multicomponent Synthesis of Pyrimidines under Air. J Org Chem 2021; 86:13186-13197. [PMID: 34528802 DOI: 10.1021/acs.joc.1c00867] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
An iron-catalyzed sustainable, economically affordable, and eco-friendly synthetic protocol for the construction of various trisubstituted pyrimidines is described. A wide range of trisubstituted pyrimidines were prepared using a well-defined, easy to prepare, bench-stable, and phosphine-free iron catalyst featuring a redox-noninnocent tridentate arylazo pincer under comparatively mild aerobic conditions via dehydrogenative functionalization of alcohols with alkynes and amidines.
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Affiliation(s)
- Rakesh Mondal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Gargi Chakraborty
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Amit Kumar Guin
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Susmita Sarkar
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Nanda D Paul
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
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25
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Luo X, Zhao Y, Tao S, Yang ZT, Luo H, Yang W. A simple and efficient copper-catalyzed three-component reaction to synthesize ( Z)-1,2-dihydro-2-iminoquinolines. RSC Adv 2021; 11:31152-31158. [PMID: 35496874 PMCID: PMC9041411 DOI: 10.1039/d1ra06330h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 09/01/2021] [Indexed: 12/19/2022] Open
Abstract
A operationally simple synthesis of (Z)-1,2-dihydro-2-iminoquinolines that proceeds under mild conditions is achieved by copper-catalyzed reaction of 1-(2-aminophenyl)ethan-1-ones, sulfonyl azides and terminal ynones. In particular, the reaction goes through a base-free CuAAC/ring-opening process to obtain the Z-configured products due to hydrogen bonding.
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Affiliation(s)
- Xiai Luo
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University Zhanjiang 524023 China .,The Marine Biomedical Research Institute of Guangdong Zhanjiang Zhanjiang Guangdong 524023 China.,Department of Pharmacy, Hunan University of Medicine Huaihua 418000 China
| | - Yu Zhao
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University Zhanjiang 524023 China
| | - Susu Tao
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University Zhanjiang 524023 China
| | - Zhong-Tao Yang
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University Zhanjiang 524023 China .,The Marine Biomedical Research Institute of Guangdong Zhanjiang Zhanjiang Guangdong 524023 China
| | - Hui Luo
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University Zhanjiang 524023 China .,The Marine Biomedical Research Institute of Guangdong Zhanjiang Zhanjiang Guangdong 524023 China.,Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) Zhanjiang Guangdong 524023 China
| | - Weiguang Yang
- Guangdong Key Laboratory for Research and Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University Zhanjiang 524023 China .,The Marine Biomedical Research Institute of Guangdong Zhanjiang Zhanjiang Guangdong 524023 China.,Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) Zhanjiang Guangdong 524023 China
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26
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Schäfer C, Cho H, Vlocskó B, Xie G, Török B. Recent Advances in the Green Synthesis of Heterocycles: From Building Blocks to Biologically Active Compounds. Curr Org Synth 2021; 19:426-462. [PMID: 34515007 DOI: 10.2174/1570179418666210910110205] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/06/2021] [Accepted: 07/22/2021] [Indexed: 11/22/2022]
Abstract
Recent advances in the environmentally benign synthesis of common heterocycles are described. This account features three main parts; the preparation of non-aromatic heterocycles, one-ring aromatic heterocycles and their condensed analogs. Due to the great variety of and high interest in these compounds, this work focuses on providing representative examples of the preparation of the target compounds.
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Affiliation(s)
- Christian Schäfer
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd. Boston, MA 02125. United States
| | - Hyejin Cho
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd. Boston, MA 02125. United States
| | - Bernadett Vlocskó
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd. Boston, MA 02125. United States
| | - Guoshu Xie
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd. Boston, MA 02125. United States
| | - Béla Török
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd. Boston, MA 02125. United States
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27
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Mondal A, Sharma R, Pal D, Srimani D. Recent Progress in the Synthesis of Heterocycles through Base Metal‐Catalyzed Acceptorless Dehydrogenative and Borrowing Hydrogen Approach. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100517] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Avijit Mondal
- Department of Chemistry Indian Institute of Technology Guwahati, Assam Kamrup (Rural) 781039 India
| | - Rahul Sharma
- Department of Chemistry Indian Institute of Technology Guwahati, Assam Kamrup (Rural) 781039 India
| | - Debjyoti Pal
- Department of Chemistry Indian Institute of Technology Guwahati, Assam Kamrup (Rural) 781039 India
| | - Dipankar Srimani
- Department of Chemistry Indian Institute of Technology Guwahati, Assam Kamrup (Rural) 781039 India
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28
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Singh A, Maji A, Joshi M, Choudhury AR, Ghosh K. Designed pincer ligand supported Co(II)-based catalysts for dehydrogenative activation of alcohols: Studies on N-alkylation of amines, α-alkylation of ketones and synthesis of quinolines. Dalton Trans 2021; 50:8567-8587. [PMID: 34075925 DOI: 10.1039/d0dt03748f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Base-metal catalysts Co1, Co2 and Co3 were synthesized from designed pincer ligands L1, L2 and L3 having NNN donor atoms respectively. Co1, Co2 and Co3 were characterized by IR, UV-Vis. and ESI-MS spectroscopic studies. Single crystal X-ray diffraction studies were investigated to authenticate the molecular structures of Co1 and Co3. Catalysts Co1, Co2 and Co3 were utilized to study the dehydrogenative activation of alcohols for N-alkylation of amines, α-alkylation of ketones and synthesis of quinolines. Under optimized reaction conditions, a broad range of substrates including alcohols, anilines and ketones were exploited. A series of control experiments for N-alkylation of amines, α-alkylation of ketones and synthesis of quinolines were examined to understand the reaction pathway. ESI-MS spectral studies were investigated to characterize cobalt-alkoxide and cobalt-hydride intermediates. Reduction of styrene by evolved hydrogen gas during the reaction was investigated to authenticate the dehydrogenative nature of the catalysts. Probable reaction pathways were proposed for N-alkylation of amines, α-alkylation of ketones and synthesis of quinolines on the basis of control experiments and detection of reaction intermediates.
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Affiliation(s)
- Anshu Singh
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
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29
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Putta RR, Chun S, Lee SB, Hong J, Oh DC, Hong S. Iron-catalyzed one-pot synthesis of quinoxalines: transfer hydrogenative condensation of 2-nitroanilines with vicinal diols. RSC Adv 2021; 11:18225-18230. [PMID: 35480939 PMCID: PMC9033394 DOI: 10.1039/d1ra02532e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 05/13/2021] [Indexed: 01/06/2023] Open
Abstract
Here, we report iron-catalyzed one-pot synthesis of quinoxalines via transfer hydrogenative condensation of 2-nitroanilines with vicinal diols. The tricarbonyl (η4-cyclopentadienone) iron complex, which is well known as the Knölker complex, catalyzed the oxidation of alcohols and the reduction of nitroarenes, and the corresponding carbonyl and 1,2-diaminobenzene intermediates were generated in situ. Trimethylamine N-oxide was used to activate the iron complex. Various unsymmetrical and symmetrical vicinal diols were applied for transfer hydrogenation, resulting in quinoxaline derivatives in 49–98% yields. A plausible mechanism was proposed based on a series of control experiments. The major advantages of this protocol are that no external redox reagents or additional base is needed and that water is liberated as the sole byproduct. A transfer hydrogenative condensation between 2-nitroanilines and vicinal diols for the synthesis of quinoxalines, with no additional oxidant, reductant and base.![]()
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Affiliation(s)
- Ramachandra Reddy Putta
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
| | - Simin Chun
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
| | - Seok Beom Lee
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
| | - Junhwa Hong
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
| | - Dong-Chan Oh
- Natural Products Research Institute, College of Pharmacy, Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
| | - Suckchang Hong
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Republic of Korea
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30
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Donthireddy SNR, Pandey VK, Rit A. [(PPh 3) 2NiCl 2]-Catalyzed C-N Bond Formation Reaction via Borrowing Hydrogen Strategy: Access to Diverse Secondary Amines and Quinolines. J Org Chem 2021; 86:6994-7001. [PMID: 33904747 DOI: 10.1021/acs.joc.1c00510] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Commercially available [(PPh3)2NiCl2] was found to be an efficient catalyst for the mono-N-alkylation of (hetero)aromatic amines, employing alcohols to deliver diverse secondary amines, including the drug intermediates chloropyramine (5b) and mepyramine (5c), in excellent yields (up to 97%) via the borrowing hydrogen strategy. This method shows a superior activity (TON up to 10000) with a broad substrate scope at a low catalyst loading of 1 mol % and a short reaction time. Further, this strategy is also successful in accessing various quinoline derivatives following the acceptorless dehydrogenation pathway.
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Affiliation(s)
- S N R Donthireddy
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Vipin K Pandey
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Arnab Rit
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
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31
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Takallou A, Mesgarsaravi N, Beigbaghlou SS, Sakhaee N, Halimehjani AZ. Recent Developments in Dehydrogenative Organic Transformations Catalyzed by Homogeneous Phosphine‐Free Earth‐Abundant Metal Complexes. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202000631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ahmad Takallou
- Faculty of Chemistry Kharazmi University 49 Mofateh St. Tehran 15719-14911 Iran
| | | | | | - Nader Sakhaee
- Roger Adams Lab, School of Chemical Sciences University of Illinois Urbana Champaign Illinois 61801 USA
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32
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K Bains A, Ankit Y, Adhikari D. Bioinspired Radical-Mediated Transition-Metal-Free Synthesis of N-Heterocycles under Visible Light. CHEMSUSCHEM 2021; 14:324-329. [PMID: 33210460 DOI: 10.1002/cssc.202002161] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/16/2020] [Indexed: 06/11/2023]
Abstract
A redox-active iminoquinone motif connected with π-delocalized pyrene core has been reported that can perform efficient two-electron oxidation of a class of substrates. The design of the molecule was inspired by the organic redox cofactor topaquinone (TPQ), which executes amine oxidation in the enzyme, copper amine oxidase. Easy oxidation of both primary and secondary alcohols happened in the presence of catalytic KOtBu, which could reduce the ligand backbone to its iminosemiquinonate form under photoinduced conditions. Moreover, this easy oxidation of alcohols under aerobic condition could be elegantly extended to multi-component, one-pot coupling for the synthesis of quinoline and pyrimidine. This organocatalytic approach is very mild (70 °C, 8 h) compared to a multitude of transition-metal catalysts that have been used to prepare these heterocycles. A detailed mechanistic study proves the intermediacy of the iminosemiquinonate-type radical and a critical hydrogen atom transfer step to be involved in the dehydrogenation reaction.
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Affiliation(s)
- Amreen K Bains
- Department of Chemical Sciences, Indian Institute of Science Education and research (IISER)-Mohali, SAS Nagar, Punjab, 140306, India
| | - Yadav Ankit
- Department of Earth and Environmental Sciences, Indian Institute of Science Education and research (IISER)-Mohali, SAS Nagar, Punjab, 140306, India
| | - Debashis Adhikari
- Department of Chemical Sciences, Indian Institute of Science Education and research (IISER)-Mohali, SAS Nagar, Punjab, 140306, India
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33
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Arslan B, Gülcemal S. α-Alkylation of arylacetonitriles with primary alcohols catalyzed by backbone modified N-heterocyclic carbene iridium(i) complexes. Dalton Trans 2021; 50:1788-1796. [DOI: 10.1039/d0dt04082g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
α-Alkylation of arylacetonitriles with primary alcohols was achieved by using backbone-modified NHC–IrI complexes as catalysts with turnover numbers of up to 960.
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Affiliation(s)
- Burcu Arslan
- Department of Chemistry
- Ege University
- 35100 Bornova
- Turkey
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34
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Wang Z, Lin Q, Ma N, Liu S, Han M, Yan X, Liu Q, Solan GA, Sun WH. Direct synthesis of ring-fused quinolines and pyridines catalyzed by NNHY-ligated manganese complexes (Y = NR 2 or SR). Catal Sci Technol 2021. [DOI: 10.1039/d1cy01945g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A robust NNS-manganese(i) complex has been developed that can efficiently catalyze the dehydrogenation coupling of γ-amino alcohols with ketones or secondary alcohols in a one-step synthesis of quinolines and pyridines with high yields.
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Affiliation(s)
- Zheng Wang
- College of Science, Hebei Agricultural University, Baoding 071001, China
- Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang 050024, China
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Qing Lin
- College of Science, Hebei Agricultural University, Baoding 071001, China
| | - Ning Ma
- College of Science, Hebei Agricultural University, Baoding 071001, China
| | - Song Liu
- Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang 050024, China
| | - Mingyang Han
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiuli Yan
- College of Material Science and Engineering, Hebei University of Engineering, Handan 056038, China
| | - Qingbin Liu
- Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang 050024, China
| | - Gregory A. Solan
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Department of Chemistry, University of Leicester, University Road, Leicester LE1 7RH, UK
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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35
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Maikhuri VK, Prasad AK, Jha A, Srivastava S. Recent advances in the transition metal catalyzed synthesis of quinoxalines: a review. NEW J CHEM 2021. [DOI: 10.1039/d1nj01442k] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This review summarizes the recent developments in the synthesis of a variety of substituted quinoxalines using transition metal catalysts.
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Affiliation(s)
- Vipin K. Maikhuri
- Bioorganic Laboratory
- Department of Chemistry
- University of Delhi
- Delhi 110007
- India
| | - Ashok K. Prasad
- Bioorganic Laboratory
- Department of Chemistry
- University of Delhi
- Delhi 110007
- India
| | - Amitabh Jha
- Department of Chemistry
- Acadia University
- Wolfville
- Canada
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36
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Wang YB, Shi L, Zhang X, Fu LR, Hu W, Zhang W, Zhu X, Hao XQ, Song MP. NaOH-Mediated Direct Synthesis of Quinoxalines from o-Nitroanilines and Alcohols via a Hydrogen-Transfer Strategy. J Org Chem 2021; 86:947-958. [PMID: 33351617 DOI: 10.1021/acs.joc.0c02453] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A NaOH-mediated sustainable synthesis of functionalized quinoxalines is disclosed via redox condensation of o-nitroamines with diols and α-hydroxy ketones. Under optimized conditions, various o-nitroamines and alcohols are well tolerated to generate the desired products in 44-99% yields without transition metals and external redox additives.
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Affiliation(s)
- Yan-Bing Wang
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Linlin Shi
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xiaojie Zhang
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Lian-Rong Fu
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Weinan Hu
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Wenjing Zhang
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xinju Zhu
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xin-Qi Hao
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Mao-Ping Song
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
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37
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Maji M, Panja D, Borthakur I, Kundu S. Recent advances in sustainable synthesis of N-heterocycles following acceptorless dehydrogenative coupling protocol using alcohols. Org Chem Front 2021. [DOI: 10.1039/d0qo01577f] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In this review, we have summarized various aspects of homogeneous and heterogeneously catalyzed recent advancements in the synthesis of heterocycles following the ADC approach.
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Affiliation(s)
- Milan Maji
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Dibyajyoti Panja
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Ishani Borthakur
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Sabuj Kundu
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
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38
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Dib M, Ouchetto H, Ouchetto K, Hafid A, Khouili M. Recent Developments of Quinoline Derivatives and their Potential Biological Activities. Curr Org Synth 2020; 18:248-269. [PMID: 33327918 DOI: 10.2174/1570179417666201216162055] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/23/2020] [Accepted: 11/02/2020] [Indexed: 11/22/2022]
Abstract
Heterocyclic compounds containing the quinoline ring play a significant role in organic synthesis and therapeutic chemistry. Polyfunctionalized quinolines have attracted the attention of many research groups, especially those who work on drug discovery and development. These derivatives have been widely explored by the research biochemists and are reported to possess wide biological activities. This review focuses on the recent progress in the synthesis of heterocyclic compounds based-quinoline and their potential biological activities.
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Affiliation(s)
- Mustapha Dib
- Laboratoire de Chimie Organique et Analytique, Equipe de Chimie Organique et Organometallique Appliquees, Faculte des Sciences et Techniques, Universite Sultan Moulay Slimane, BP 523, 23000 Beni-Mellal, Morocco
| | - Hajiba Ouchetto
- Laboratoire de Chimie Organique et Analytique, Equipe de Chimie Organique et Organometallique Appliquees, Faculte des Sciences et Techniques, Universite Sultan Moulay Slimane, BP 523, 23000 Beni-Mellal, Morocco
| | - Khadija Ouchetto
- Laboratoire de Chimie Organique et Analytique, Equipe de Chimie Organique et Organometallique Appliquees, Faculte des Sciences et Techniques, Universite Sultan Moulay Slimane, BP 523, 23000 Beni-Mellal, Morocco
| | - Abderrafia Hafid
- Laboratoire de Chimie Organique et Analytique, Equipe de Chimie Organique et Organometallique Appliquees, Faculte des Sciences et Techniques, Universite Sultan Moulay Slimane, BP 523, 23000 Beni-Mellal, Morocco
| | - Mostafa Khouili
- Laboratoire de Chimie Organique et Analytique, Equipe de Chimie Organique et Organometallique Appliquees, Faculte des Sciences et Techniques, Universite Sultan Moulay Slimane, BP 523, 23000 Beni-Mellal, Morocco
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39
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Wu J, Darcel C. Iron-Catalyzed Hydrogen Transfer Reduction of Nitroarenes with Alcohols: Synthesis of Imines and Aza Heterocycles. J Org Chem 2020; 86:1023-1036. [DOI: 10.1021/acs.joc.0c02505] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jiajun Wu
- UnivRennes, CNRS ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35000 Rennes, France
| | - Christophe Darcel
- UnivRennes, CNRS ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35000 Rennes, France
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40
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Arun V, Roy L, De Sarkar S. Alcohols as Fluoroalkyl Synthons: Ni-catalyzed Dehydrogenative Approach to Access Polyfluoroalkyl Bis-indoles. Chemistry 2020; 26:16649-16654. [PMID: 32914904 DOI: 10.1002/chem.202003912] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Indexed: 01/04/2023]
Abstract
An acceptorless dehydrogenative strategy for the synthesis of polyfluoroalkylated bis-indoles is described by employing an earth-abundant nickel-based catalytic system under air. The notable feature of the present transformation is the use of bench stable and easily affordable polyfluorinated alcohols without any pre-functionalization for the introduction of precious polyfluoroalkyl groups. The developed straightforward protocol accomplished biologically relevant fluoroalkyl bis-indoles in a sustainable fashion. Extensive DFT study predicts the unique role of indole molecules which stabilizes the transition states during the dehydrogenation process of polyfluorinated alcohols, presumably through non-covalent π⋅⋅⋅π and H-bonding interactions.
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Affiliation(s)
- V Arun
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, West Bengal, India
| | - Lisa Roy
- Institute of Chemical Technology Mumbai, IOC Odisha Campus Bhubaneswar, IIT Kharagpur Extension Centre, Bhubaneswar, 751013, India
| | - Suman De Sarkar
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, West Bengal, India
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41
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Bains AK, Singh V, Adhikari D. Homogeneous Nickel-Catalyzed Sustainable Synthesis of Quinoline and Quinoxaline under Aerobic Conditions. J Org Chem 2020; 85:14971-14979. [PMID: 33174416 DOI: 10.1021/acs.joc.0c01819] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Dehydrogenative coupling-based reactions have emerged as an efficient route toward the synthesis of a plethora of heterocyclic rings. Herein, we report an efficacious, nickel-catalyzed synthesis of two important heterocycles such as quinoline and quinoxaline. The catalyst is molecularly defined, is phosphine-free, and can operate at a mild reaction temperature of 80 °C. Both the heterocycles can be easily assembled via double dehydrogenative coupling, starting from 2-aminobenzyl alcohol/1-phenylethanol and diamine/diol, respectively, in a shorter span of reaction time. This environmentally benign synthetic protocol employing an inexpensive catalyst can rival many other transition-metal systems that have been developed for the fabrication of two putative heterocycles. Mechanistically, the dehydrogenation of secondary alcohol follows clean pseudo-first-order kinetics and exhibits a sizable kinetic isotope effect. Intriguingly, this catalyst provides an example of storing the trapped hydrogen in the ligand backbone, avoiding metal-hydride formation. Easy regeneration of the oxidized form of the catalyst under aerobic/O2 oxidation makes this protocol eco-friendly and easy to handle.
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Affiliation(s)
- Amreen K Bains
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, SAS Nagar, 140306 Mohali, India
| | - Vikramjeet Singh
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, SAS Nagar, 140306 Mohali, India
| | - Debashis Adhikari
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, SAS Nagar, 140306 Mohali, India
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42
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Sun K, Li D, Lu G, Cai C. Hydrogen Auto‐transfer Synthesis of Quinoxalines from
o
‐Nitroanilines and Biomass‐based Diols Catalyzed by MOF‐derived N,P Co‐doped Cobalt Catalysts. ChemCatChem 2020. [DOI: 10.1002/cctc.202001362] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Kangkang Sun
- School of Chemical Engineering Nanjing University of Science & Technology Xiaolingwei 200 Nanjing 210094 P. R. China
| | - Dandan Li
- School of Chemical Engineering Nanjing University of Science & Technology Xiaolingwei 200 Nanjing 210094 P. R. China
| | - Guo‐Ping Lu
- School of Chemical Engineering Nanjing University of Science & Technology Xiaolingwei 200 Nanjing 210094 P. R. China
| | - Chun Cai
- School of Chemical Engineering Nanjing University of Science & Technology Xiaolingwei 200 Nanjing 210094 P. R. China
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Lingling Lu 345 Shanghai 200032 P. R. China
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43
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Hofmann N, Homberg L, Hultzsch KC. Synthesis of Tetrahydroquinolines via Borrowing Hydrogen Methodology Using a Manganese PN 3 Pincer Catalyst. Org Lett 2020; 22:7964-7970. [PMID: 32970449 PMCID: PMC7587143 DOI: 10.1021/acs.orglett.0c02905] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
![]()
A straightforward and selective synthesis
of 1,2,3,4-tetrahydroquinolines
starting from 2-aminobenzyl alcohols and simple secondary alcohols
is reported. This one-pot cascade reaction is based on the borrowing
hydrogen methodology promoted by a manganese(I) PN3 pincer
complex. The reaction selectively leads to 1,2,3,4-tetrahydroquinolines
thanks to a targeted choice of base. This strategy provides an atom-efficient
pathway with water as the only byproduct. In addition, no further
reducing agents are required.
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Affiliation(s)
- Natalie Hofmann
- University of Vienna, Faculty of Chemistry, Institute of Chemical Catalysis, Währinger Straße 38, 1090 Vienna, Austria
| | - Leonard Homberg
- University of Vienna, Faculty of Chemistry, Institute of Chemical Catalysis, Währinger Straße 38, 1090 Vienna, Austria
| | - Kai C Hultzsch
- University of Vienna, Faculty of Chemistry, Institute of Chemical Catalysis, Währinger Straße 38, 1090 Vienna, Austria
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44
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Zhang L, Shen J, Wu S, Zhong G, Wang Y, Tan B. Design and Atroposelective Construction of IAN analogues by Organocatalytic Asymmetric Heteroannulation of Alkynes. Angew Chem Int Ed Engl 2020; 59:23077-23082. [DOI: 10.1002/anie.202010598] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/27/2020] [Indexed: 12/19/2022]
Affiliation(s)
- Lei Zhang
- College of Materials Chemistry and Chemical Engineering Hangzhou Normal University Hangzhou 311121 China
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518055 China
| | - Jiahua Shen
- College of Materials Chemistry and Chemical Engineering Hangzhou Normal University Hangzhou 311121 China
| | - San Wu
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518055 China
| | - Guofu Zhong
- College of Materials Chemistry and Chemical Engineering Hangzhou Normal University Hangzhou 311121 China
| | - Yong‐Bin Wang
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518055 China
| | - Bin Tan
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518055 China
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45
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Zhang L, Shen J, Wu S, Zhong G, Wang Y, Tan B. Design and Atroposelective Construction of IAN analogues by Organocatalytic Asymmetric Heteroannulation of Alkynes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010598] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Lei Zhang
- College of Materials Chemistry and Chemical Engineering Hangzhou Normal University Hangzhou 311121 China
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518055 China
| | - Jiahua Shen
- College of Materials Chemistry and Chemical Engineering Hangzhou Normal University Hangzhou 311121 China
| | - San Wu
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518055 China
| | - Guofu Zhong
- College of Materials Chemistry and Chemical Engineering Hangzhou Normal University Hangzhou 311121 China
| | - Yong‐Bin Wang
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518055 China
| | - Bin Tan
- Shenzhen Grubbs Institute and Department of Chemistry Southern University of Science and Technology Shenzhen 518055 China
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46
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Ganguli K, Mandal A, Sarkar B, Kundu S. Benzimidazole fragment containing Mn-complex catalyzed hydrosilylation of ketones and nitriles. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131439] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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47
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Prameela S, Nawaz Khan F. Ir(I)‐Catalyzed Synthesis of (
E
)‐4‐Benzylidenylacridines and (
E
)‐2‐Styrylquinoline‐3‐carboxamide through Sequential Suzuki–Miyaura Coupling, Dehydrogenative Friedländer Reaction, and sp
3
‐C–H Activation. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000834] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Soda Prameela
- Organic and Medicinal Chemistry Research Laboratory School of Advanced Sciences Vellore Institute of Technology 632014, Tamil Nadu Vellore India
| | - Fazlur‐Rahman Nawaz Khan
- Organic and Medicinal Chemistry Research Laboratory School of Advanced Sciences Vellore Institute of Technology 632014, Tamil Nadu Vellore India
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48
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Xu Y, Huang X, Lv G, Lai R, Lv S, Li J, Hai L, Wu Y. Iridium-Catalyzed Carbenoid Insertion of Sulfoxonium Ylides for Synthesis of Quinoxalines and β-Keto Thioethers in Water. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000716] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yingying Xu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province; Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology; West China School of Pharmacyy; Sichuan University; 610041 Chengdu China
| | - Xin Huang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province; Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology; West China School of Pharmacyy; Sichuan University; 610041 Chengdu China
| | - Guanghui Lv
- Department of Pharmacy; Taihe Hospital; Hubei University of Medicine; No. 32 South Renmin Road 442000 Shiyan Huibei China
| | - Ruizhi Lai
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province; Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology; West China School of Pharmacyy; Sichuan University; 610041 Chengdu China
| | - Songyang Lv
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province; Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology; West China School of Pharmacyy; Sichuan University; 610041 Chengdu China
| | - Jianglian Li
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province; Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology; West China School of Pharmacyy; Sichuan University; 610041 Chengdu China
| | - Li Hai
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province; Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology; West China School of Pharmacyy; Sichuan University; 610041 Chengdu China
| | - Yong Wu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province; Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology; West China School of Pharmacyy; Sichuan University; 610041 Chengdu China
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49
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Arora V, Dutta M, Das K, Das B, Srivastava HK, Kumar A. Solvent-Free N-Alkylation and Dehydrogenative Coupling Catalyzed by a Highly Active Pincer-Nickel Complex. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00233] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Vinay Arora
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Moumita Dutta
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Kanu Das
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Babulal Das
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Hemant Kumar Srivastava
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
- National Institute of Pharmaceutical Education and Research Guwahati, Guwahati 781101, Assam, India
| | - Akshai Kumar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
- Center for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
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50
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Mondal A, Sahoo MK, Subaramanian M, Balaraman E. Manganese(I)-Catalyzed Sustainable Synthesis of Quinoxaline and Quinazoline Derivatives with the Liberation of Dihydrogen. J Org Chem 2020; 85:7181-7191. [DOI: 10.1021/acs.joc.0c00561] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Akash Mondal
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati 517507, India
| | - Manoj Kumar Sahoo
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati 517507, India
| | - Murugan Subaramanian
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati 517507, India
| | - Ekambaram Balaraman
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati 517507, India
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