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Xu F, Zhang F, Wang W, Yao M, Lin X, Yang F, Qian Y, Chen Z. Iron(III)-catalyzed α-cyanation and carbonylation with 2-pyridylacetonitrile: divergent synthesis of α-amino nitriles and tetrahydroisoquinolinones. Org Biomol Chem 2022; 20:7031-7035. [PMID: 36018561 DOI: 10.1039/d2ob01199a] [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
Iron-catalyzed oxidative synthesis of N-aryl-substituted tetrahydroisoquinolines (THIQs) toward tetrahydroisoquinoline-based derivatives is reported. A wide range of α-amino nitriles and tetrahydroisoquinolinones are synthesized in moderate to good yields. This approach involves a new organic nitrile source, a cheap iron catalyst under an oxygen atmosphere, and temperature-controlled divergent synthesis and features complete selectivity and operational simplicity.
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Affiliation(s)
- Fan Xu
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China.
| | - Fanglian Zhang
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China.
| | - Wenjia Wang
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China.
| | - Mingxu Yao
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China.
| | - Xing Lin
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China.
| | - Fang Yang
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China.
| | - Yiping Qian
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China.
| | - Zhengwang Chen
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China.
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2
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Jia H, He M, Yang S, Yu X, Bao M. Visible‐Light‐Driven di‐
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‐Butyl Peroxide‐Promoted the Oxidative Homo‐ and Cross‐Coupling of Phenols. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101469] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hanqiang Jia
- State Key Laboratory of Fine Chemicals Dalian University of Technology 116023 Dalian Liaoning China
| | - Min He
- State Key Laboratory of Fine Chemicals Dalian University of Technology 116023 Dalian Liaoning China
| | - Shilei Yang
- State Key Laboratory of Fine Chemicals Dalian University of Technology 116023 Dalian Liaoning China
| | - Xiaoqiang Yu
- State Key Laboratory of Fine Chemicals Dalian University of Technology 116023 Dalian Liaoning China
| | - Ming Bao
- State Key Laboratory of Fine Chemicals Dalian University of Technology 116023 Dalian Liaoning China
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3
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Cheng SJ, Wang G, Liu K, Ye ZS. Palladium-Catalyzed α-Amino C-H Functionalization via Isomerization of α,β-Unsaturated Carbonyls. Org Lett 2022; 24:864-868. [PMID: 35023743 DOI: 10.1021/acs.orglett.1c04164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Palladium-catalyzed regioselective α-amino C-H functionalization via the isomerization of α,β-unsaturated carbonyls including esters, ketones, and amides has been established, providing an easy access to a wide array of tricyclic 1,2,3,4-tetrahydro-b-carbolines, azepinoindoles, 2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indoles, 4,5,6,7-tetrahydro-1H-pyrrolo[2,3-c]pyridines, 1,2,3,4-tetrahydropyrazino-[1,2-a]indoles, pyran-fused indoles, and tetrahydroisoquinolines in good to excellent yields. This transformation showed high regioselectivity, excellent functional group tolerance, and scalability. Moreover, this methodology was also employed as the key step for the total synthesis of desbromoarborescidines A, B, and C. Preliminary mechanistic studies revealed that the palladium catalyst not only formed [Pd-H] to promote the isomerization of α,β-unsaturated carbonyls but also played a role as a Lewis acid for the final protonation/cyclization.
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Affiliation(s)
- Shao-Jie Cheng
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
| | - Gang Wang
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
| | - Kui Liu
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
| | - Zhi-Shi Ye
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
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4
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Sahin Y, Sika-Nartey AT, Ercan KE, Kocak Y, Senol S, Ozensoy E, Türkmen YE. Precious Metal-Free LaMnO 3 Perovskite Catalyst with an Optimized Nanostructure for Aerobic C-H Bond Activation Reactions: Alkylarene Oxidation and Naphthol Dimerization. ACS APPLIED MATERIALS & INTERFACES 2021; 13:5099-5110. [PMID: 33492925 DOI: 10.1021/acsami.0c20490] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this article, we describe the development of a new aerobic C-H oxidation methodology catalyzed by a precious metal-free LaMnO3 perovskite catalyst. Molecular oxygen is used as the sole oxidant in this approach, obviating the need for other expensive and/or environmentally hazardous stoichiometric oxidants. The electronic and structural properties of the LaMnO3 catalysts were systematically optimized, and a reductive pretreatment protocol was proved to be essential for acquiring the observed high catalytic activities. It is demonstrated that this newly developed method was extremely effective for the oxidation of alkylarenes to ketones as well as for the oxidative dimerization of 2-naphthol to 1,1-binaphthyl-2,2-diol (BINOL), a particularly important scaffold for asymmetric catalysis. Detailed spectroscopic and mechanistic studies provided valuable insights into the structural aspects of the active catalyst and the reaction mechanism.
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Affiliation(s)
- Yesim Sahin
- Department of Chemistry, Faculty of Science, Bilkent University, 06800 Ankara, Turkey
| | - Abel T Sika-Nartey
- Department of Chemistry, Faculty of Science, Bilkent University, 06800 Ankara, Turkey
| | - Kerem E Ercan
- Department of Chemistry, Faculty of Science, Bilkent University, 06800 Ankara, Turkey
| | - Yusuf Kocak
- Department of Chemistry, Faculty of Science, Bilkent University, 06800 Ankara, Turkey
| | - Sinem Senol
- Department of Chemistry, Faculty of Science, Bilkent University, 06800 Ankara, Turkey
| | - Emrah Ozensoy
- Department of Chemistry, Faculty of Science, Bilkent University, 06800 Ankara, Turkey
| | - Yunus E Türkmen
- Department of Chemistry, Faculty of Science, Bilkent University, 06800 Ankara, Turkey
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5
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Palaniappan N, Cole IS, Damodaran K, Kuznetsov A, Justin Thomas KR, K B. Experimental and DFT studies of porous carbon covalently functionalized by polyaniline as a corrosion inhibition barrier on nickel-based alloys in acidic media. RSC Adv 2020; 10:12151-12165. [PMID: 35497596 PMCID: PMC9050735 DOI: 10.1039/d0ra00593b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Accepted: 03/15/2020] [Indexed: 11/29/2022] Open
Abstract
In acidic medium, nickel alloys severely suffer from long term corrosion problems as a result of the breakdown of their passivating oxide. The present study considers polyaniline functionalized fish-scale graphitic carbon as an anticorrosion coating on the nickel alloy surface. The fish-scale porous carbon materials are characterized by XRD, ATR-FITR, UV, Raman, TGA, SS NMR, FESEM, and TEM methods. The surface of the alloy is covalently bound with a polyaniline long chain protonated polymer so that the polyaniline functionalized honeycomb fish-scale carbon structure can exchange electrons with the metal surface. The corrosion inhibition efficiency has been investigated in different acid media like sulfuric acid and hydrochloric acid by electrochemical methods. Polyaniline functionalized porous carbon showed in 1 M H2SO4 inhibition efficiency around 64% and in 1 M HCl inhibition efficiency was around 74%. The inhibition efficiency was higher in HCl because chloride ions were not able to penetrate the graphitic sheet. The novelty of this coating is in the fact that the polyaniline functionalized porous carbon has high conductivity and is electrochemically stable in acidic medium. It is able to donate electrons to the polarized metal surface. Polyaniline functionalized fish scale carbon chemisorption on 111 nickel alloy surface by polyaniline polaron nitrogen free electron.![]()
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Affiliation(s)
- N Palaniappan
- School of Chemical Sciences, Central University of Gujarat India
| | - I S Cole
- Advance Manufacturing and Fabrication Research and Innovation, RMIT University Melbourne Victoria 3100 Australia
| | - K Damodaran
- Chemistry Department, Pittsburgh University USA
| | - A Kuznetsov
- Department of Chemistry, Universidad Técnica Federico Santa Maria, Campus Vitacura Santiago Chile
| | - K R Justin Thomas
- Organic Materials Laboratory, Department of Chemistry, Indian Institute of Technology Roorkee Roorkee 247667 India
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Kasama K, Aoyama H, Akai S. Enantiodivergent Synthesis of Axially Chiral Biphenyls from σ-Symmetric 1,1'-Biphenyl-2,6-diol Derivatives by Single Lipase-Catalyzed Acylative and Hydrolytic Desymmetrization. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901583] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Kengo Kasama
- Graduate School of Pharmaceutical Sciences; Osaka University; 1-6, Yamadaoka, Suita 565-0871 Osaka Japan
| | - Hiroshi Aoyama
- Graduate School of Pharmaceutical Sciences; Osaka University; 1-6, Yamadaoka, Suita 565-0871 Osaka Japan
| | - Shuji Akai
- Graduate School of Pharmaceutical Sciences; Osaka University; 1-6, Yamadaoka, Suita 565-0871 Osaka Japan
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Wirtanen T, Aikonen S, Muuronen M, Melchionna M, Kemell M, Davodi F, Kallio T, Hu T, Helaja J. Carbocatalytic Oxidative Dehydrogenative Couplings of (Hetero)Aryls by Oxidized Multi‐Walled Carbon Nanotubes in Liquid Phase. Chemistry 2019; 25:12288-12293. [DOI: 10.1002/chem.201903054] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Indexed: 01/08/2023]
Affiliation(s)
- Tom Wirtanen
- Department of ChemistryUniversity of Helsinki A. I. Virtasen aukio 1, P.O. Box 55 00014 Helsinki Finland
- Current address: Institute of Organic ChemistryJohannes Gutenberg-University Mainz Duesbergweg 10–14 55128 Mainz Germany
| | - Santeri Aikonen
- Department of ChemistryUniversity of Helsinki A. I. Virtasen aukio 1, P.O. Box 55 00014 Helsinki Finland
| | - Mikko Muuronen
- Department of ChemistryUniversity of Helsinki A. I. Virtasen aukio 1, P.O. Box 55 00014 Helsinki Finland
| | - Michele Melchionna
- Department of Chemical and Pharmaceutical SciencesUniversity of Trieste Via L. Giorgieri 1 34127 Trieste Italy
| | - Marianna Kemell
- Department of ChemistryUniversity of Helsinki A. I. Virtasen aukio 1, P.O. Box 55 00014 Helsinki Finland
| | - Fatemeh Davodi
- Department of Chemistry and Materials ScienceAalto University, P.O Box 16100 00076 Aalto Finland
| | - Tanja Kallio
- Department of Chemistry and Materials ScienceAalto University, P.O Box 16100 00076 Aalto Finland
| | - Tao Hu
- Research Unit of Sustainable ChemistryFaculty of TechnologyUniversity of Oulu 90014 Oulu Finland
| | - Juho Helaja
- Department of ChemistryUniversity of Helsinki A. I. Virtasen aukio 1, P.O. Box 55 00014 Helsinki Finland
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Thatikonda T, Deepake SK, Das U. α-Angelica Lactone in a New Role: Facile Access to N-Aryl Tetrahydroisoquinolinones and Isoindolinones via Organocatalytic α-CH2 Oxygenation. Org Lett 2019; 21:2532-2535. [DOI: 10.1021/acs.orglett.9b00224] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Thanusha Thatikonda
- Division of Organic Chemistry, CSIR − National Chemical Laboratory, Pune 411008, India
| | - Siddharth K. Deepake
- Division of Organic Chemistry, CSIR − National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Utpal Das
- Division of Organic Chemistry, CSIR − National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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10
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Periasamy M, Reddy PO, Shanmugaraja M. Organoboranes Oxidation and Lewis Base Borane Complexes Preparation Using Oxygen Adsorbed Carbon Materials. ChemistrySelect 2017. [DOI: 10.1002/slct.201701735] [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)
- Mariappan Periasamy
- School of Chemistry; University of Hyderabad, Central University P.O; Hyderabad-500046, Telangana State India
| | - Polimera Obula Reddy
- School of Chemistry; University of Hyderabad, Central University P.O; Hyderabad-500046, Telangana State India
| | - Masilamani Shanmugaraja
- School of Chemistry; University of Hyderabad, Central University P.O; Hyderabad-500046, Telangana State India
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