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Li K, Gao S, Zha Z, Wang Z. Construction of chiral N, O-hemiaminals via a copper-catalyzed enantioselective Michael/ N-hemiacetalization cascade reaction. Org Biomol Chem 2023; 21:4404-4408. [PMID: 37191101 DOI: 10.1039/d3ob00542a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
An efficient Michael/N-hemiacetalization cascade reaction of 5-aminoisoxazoles with β,γ-unsaturated α-ketoesters was developed under the catalysis of a chiral copper complex. A series of optically pure six-membered ring N,O-hemiaminals were obtained with excellent yields (up to 96% yield) and high enantioselectivities (up to 98% ee). The possible transition state was supported by DFT calculations and thereby the corresponding mechanism was proposed.
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Affiliation(s)
- Kuiliang Li
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences, School of Chemistry and Materials Science in University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
| | - Siyu Gao
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences, School of Chemistry and Materials Science in University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
| | - Zhenggen Zha
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences, School of Chemistry and Materials Science in University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
| | - Zhiyong Wang
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences, School of Chemistry and Materials Science in University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
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2
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Martín CDMG, García JIH, Bonardd S, Díaz DD. Lignin-Based Catalysts for C-C Bond-Forming Reactions. Molecules 2023; 28:molecules28083513. [PMID: 37110747 PMCID: PMC10141373 DOI: 10.3390/molecules28083513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/01/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
Carbon-carbon (C-C) bond formation is the key reaction in organic synthesis to construct the carbon framework of organic molecules. The continuous shift of science and technology toward eco-friendly and sustainable resources and processes has stimulated the development of catalytic processes for C-C bond formation based on the use of renewable resources. In this context, and among other biopolymer-based materials, lignin has attracted scientific attention in the field of catalysis during the last decade, either through its acid form or as a support for metal ions and metal nanoparticles that drive the catalytic activity. Its heterogeneous nature, as well as its facile preparation and low cost, provide competitive advantages over other homogeneous catalysts. In this review, we have summarized a variety of C-C formation reactions, such as condensations, Michael additions of indoles, and Pd-mediated cross-coupling reactions that were successfully carried out in the presence of lignin-based catalysts. These examples also involve the successful recovery and reuse of the catalyst after the reaction.
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Affiliation(s)
- Cristina Del Mar García Martín
- Instituto de Bio-Orgánica Antonio González, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez 2, 38206 La Laguna, Spain
| | - José Ignacio Hernández García
- Instituto de Bio-Orgánica Antonio González, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez 2, 38206 La Laguna, Spain
- Departamento de Química Orgánica, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez 3, 38206 La Laguna, Spain
| | - Sebastián Bonardd
- Instituto de Bio-Orgánica Antonio González, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez 2, 38206 La Laguna, Spain
- Departamento de Química Orgánica, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez 3, 38206 La Laguna, Spain
| | - David Díaz Díaz
- Instituto de Bio-Orgánica Antonio González, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez 2, 38206 La Laguna, Spain
- Departamento de Química Orgánica, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez 3, 38206 La Laguna, Spain
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3
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Choi D, Takahashi N, Maruoka H, Harada S, Nastke A, Gröger H, Nemoto T. Synthetic Study of Dragmacidin E: Enantioselective Construction of the Seven-Membered Ring-Fused Indole Skeleton with Contiguous Stereocenters. J Org Chem 2023. [PMID: 36701491 DOI: 10.1021/acs.joc.2c02216] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
We developed an enantioselective synthetic method of constructing a seven-membered ring-fused indole skeleton with contiguous stereocenters for the synthesis of dragmacidin E. Introduction of chirality at the benzylic position was achieved by Ir-catalyzed asymmetric hydrogenation. After construction of the tricyclic molecular framework using Pd-catalyzed cascade cyclization, the tetrasubstituted carbon center was created using the Ag nitrene-mediated C-H amination reaction. The developed method provided access to the functionalized seven-membered ring-fused indole skeleton with a hydroxymethyl branch in the tetrasubstituted carbon.
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Affiliation(s)
- Dongil Choi
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Noa Takahashi
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Haruka Maruoka
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Shingo Harada
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Alina Nastke
- Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Harald Gröger
- Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Tetsuhiro Nemoto
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
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Azizi N, Farhadi E, Farzaneh F. Increased catalytic activity through ZnMo 7O 24/g-C 3N 4 heterostructured assemblies for greener indole condensation reaction at room temperature. Sci Rep 2022; 12:18634. [PMID: 36329097 PMCID: PMC9633728 DOI: 10.1038/s41598-022-23447-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022] Open
Abstract
As an economical conjugated polymer, graphitic carbon nitride (g-C3N4) has recently attracted much attention due to its exciting chemical and thermal stability and easy availability. Herein, we constructed a metal-coordinated graphitic carbon nitride (M–g-C3N4) catalyst through simple impregnation and calcination methods and used it as a new heterogeneous catalyst for the efficient synthesis of bis (indolyl) methanes and trisindolines under mild conditions. This reaction is performed efficiently in water as an environmentally friendly solvent at ambient conditions. The ZnMo7O24/g-C3N4 nanocomposite was synthesized by a simple method by immobilizing Mo7O24(NH4)6·4H2O and ZnCl2 on the surface of g-C3N4 under hydrothermal conditions. It was characterized by FT-IR, EDS, and electronic scanning microscopy (SEM). The metal doping of Mo and Zn on the surface of graphitic carbon nitride leads to the formation of a green catalyst that gives good to excellent yields of products in short reaction times with an easy working procedure. In addition, the ZnMo7O24/g-C3N4 catalyst could be reused at least five runs without apparent loss of efficiency.
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Affiliation(s)
- Najmedin Azizi
- Chemistry & Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran.
| | - Elham Farhadi
- Chemistry & Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran
| | - Fezeh Farzaneh
- Chemistry & Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran
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Zhu H, Chen L, Bai R, Gu Y. Acid‐Catalyzed Synthesis of Diverse Indol‐3‐yl‐Substituted Tetrahydropyridines via Three‐Component Reactions. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hongmei Zhu
- Institute of Physical Chemistry and Industrial Catalysis CHINA
| | - Lei Chen
- Huazhong University of Science and Technology CHINA
| | - Rongxian Bai
- Huazhong University of Science and Technology CHINA
| | - Yanlong Gu
- Institute of Physical Chemistry and Industrial Catalysis CHINA
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6
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Yang S, An XD, Qiu B, Liu RB, Xiao J. Access to Polycyclic Indole-3,4-Fused Nine-Membered Ring via Cascade 1,6-Hydride Transfer/Cyclization. Org Lett 2021; 23:9100-9105. [PMID: 34766504 DOI: 10.1021/acs.orglett.1c03389] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A cascade aldimine condensation/1,6-hydride transfer/Mannich-type cyclization of indole-derived phenylenediamine with aldehydes was developed for one-step construction of a polycyclic indole-3,4-fused skeleton. Aldehyde serves as a key to start the whole process, including 1,6-hydride transfer enabled δ-C(sp3)-H activation of the secondary amine. The challenges of construction of medium-sized rings are addressed via hydride transfer chemistry.
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Affiliation(s)
- Shuo Yang
- School of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Xiao-De An
- School of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Bin Qiu
- School of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Rui-Bin Liu
- Shandong Kangqiao Biotechnology Co. Ltd., Binzhou 256500, China
| | - Jian Xiao
- School of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China.,School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China
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Liu D, Sun J, Xie J, Shi H, Yan CG. Construction of Polyfunctionalized 2,4-Dioxa-8-azaspiro[5.5]undec-9-enes and 2,4,8-Triazaspiro[5.5]undec-9-enes via a Domino [2+2+2] Cycloaddition Reaction. J Org Chem 2021; 86:1827-1842. [PMID: 33390007 DOI: 10.1021/acs.joc.0c02645] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The three-component reaction of α,β-unsaturated N-arylaldimines, dialkyl but-2-ynedioates, and 2-arylidene Meldrum acids in DCM at room temperature gave mixtures of cis/trans-11-aryl-7-styryl-2,4-dioxa-8-azaspiro[5.5]undec-9-enes in satisfactory yields. The similar three-component reaction with 2-arylidene-N,N'-dimethylbarbituric acids afforded cis-11-phenyl-7-styryl-2,4,8-triazaspiro[5.5]undec-9-enes as major products. On the other hand, the three-component reaction of N-arylaldimines, dialkyl but-2-ynedioates, and 2-arylidene Meldrum acids or 2-arylidene-N,N'-dimethylbarbituric acids afforded cis/trans-isomeric spirocompounds in satisfactory yields with high diastereoselectivity. This domino [2+2+2] cycloaddition reaction proceeded with sequential nucleophilic addition of N-arylaldimine to an electron-deficient alkyne, Michael addition, and annulation process. The stereochemistry of all cis/trans isomeric spirocompounds was clearly elucidated by the determination of 33 single-crystal structures. The diastereoselectivity of the three-component reaction was correlated by DFT calculations.
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Affiliation(s)
- Dan Liu
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Jing Sun
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Ju Xie
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Huizhong Shi
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Chao-Guo Yan
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
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8
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Lai B, Ye M, Liu P, Li M, Bai R, Gu Y. A novel and robust heterogeneous Cu catalyst using modified lignosulfonate as support for the synthesis of nitrogen-containing heterocycles. Beilstein J Org Chem 2020; 16:2888-2902. [PMID: 33299487 PMCID: PMC7705867 DOI: 10.3762/bjoc.16.238] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 11/06/2020] [Indexed: 12/20/2022] Open
Abstract
A waste biomass, sodium lignosulfonate, was treated with sodium 2-formylbenzenesulfonate, and the phenylaldehyde condensation product was then used as a robust supporting material to immobilize a copper species. The so-obtained catalyst was characterized by many physicochemical methods including FTIR, EA, FSEM, FTEM, XPS, and TG. This catalyst exhibited excellent catalytic activity in the synthesis of nitrogen-containing heterocycles such as tricyclic indoles bearing 3,4-fused seven-membered rings, 2‑arylpyridines, aminonaphthalenes and 3-phenylisoquinolines. In addition, this catalyst showed to be recyclable and could be reused several times without significant loss in activity during the course of the reaction process.
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Affiliation(s)
- Bingbing Lai
- 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, Hongshan District, Wuhan 430074, P. R. China
| | - Meng Ye
- 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, Hongshan District, Wuhan 430074, P. R. China
| | - Ping Liu
- School of Chemistry and Chemical Engineering, the Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City, 832004, China
| | - Minghao Li
- 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, Hongshan District, Wuhan 430074, P. R. China
| | - Rongxian Bai
- 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, Hongshan District, Wuhan 430074, P. R. China
| | - Yanlong Gu
- 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, Hongshan District, Wuhan 430074, P. R. China.,State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
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Sun QS, Sun J, Pan LN, Yan CG. Selective Construction of Diverse Polycyclic Spirooxindoles via a Three-Component Reaction of Cyclic Mercapto-Substituted β-Enamino Esters, Isatins, and Cyclic 1,3-Diketones. J Org Chem 2020; 85:12117-12127. [PMID: 32901479 DOI: 10.1021/acs.joc.0c01290] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The three-component reaction of alkyl 2-(benzo[b][1,4]thiazin-3-ylidene)acetates, isatins, and 1,3-indanedione (1,3-cyclopentanedione) in ethanol in the presence of acetic acid conveniently afforded spiro[indeno[1,2-b]phenothiazine-6,3'-indolines] or spiro[cyclopenta[b]phenothiazine-4,3'-indolines] in good yields and with high diastereoselectivity. More interestingly, a similar three-component reaction with 4-hydroxychromen-2-one resulted in the unexpected polycyclic spiro[benzo[b]chromeno[3',4':5,6]pyrano[2,3-e][1,4]thiazine-7,3'-indolines] in satisfactory yields. A plausible reaction mechanism was rationally proposed for formation of different kinds of the spiro compounds, and the stereochemistries of the various spiro compounds were clearly elucidated.
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Affiliation(s)
- Quan-Shun Sun
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Jing Sun
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Liu-Na Pan
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Chao-Guo Yan
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
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Sharma MG, Vala RM, Patel HM. Pyridine-2-carboxylic acid as an effectual catalyst for rapid multi-component synthesis of pyrazolo[3,4-b]quinolinones. RSC Adv 2020; 10:35499-35504. [PMID: 35515671 PMCID: PMC9056938 DOI: 10.1039/d0ra06738e] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 09/19/2020] [Indexed: 01/31/2023] Open
Abstract
Green synthesis of pyrazolo[3,4-b]quinolinones was designed using bioproduct pyridine-2-carboxylic acid (P2CA) as a green and efficient catalyst. The multi-component reaction of aldehydes, 1,3-cyclodiones and 5-amino-1-phenyl-pyrazoles regioselectively produced pyrazolo[3,4-b]quinolinones in excellent yield (84–98%). Recyclization of the catalyst was also investigated. The electronic effect of the various substituents in aromatic rings indicated that the reaction proceeded through the carbocation intermediate. This newly designed protocol very quickly constructed products conventionally under milder conditions. Green synthesis of pyrazolo[3,4-b]quinolinones was designed using bioproduct pyridine-2-carboxylic acid (P2CA) as a green and efficient catalyst.![]()
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