1
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Mahecha-Mahecha C, Borrego-Muñoz P, Pombo LM, Gamba-Sánchez D. On the way to potential antifungal compounds: synthesis and in vitro activity of 2-benzofuranylacetic acid amides. RSC Adv 2023; 13:25296-25304. [PMID: 37622023 PMCID: PMC10445276 DOI: 10.1039/d3ra04737g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 08/17/2023] [Indexed: 08/26/2023] Open
Abstract
Crop losses caused by microbial infections are a significant global issue, especially in tropical regions. The development of novel antimicrobial agents, particularly antifungal agents, has been explored from various perspectives, including chemical synthesis. However, conventional approaches typically involve synthesizing new and potent compounds on a small scale (a few milligrams), making the scale-up of the reaction a major challenge. In this manuscript, we present a method for the synthesis of new and active (against Fusarium oxysporum) benzofuranyl acetic acid amides. Our strategy allows us to synthesize the key precursor on the gram scale, enabling the production of sufficient quantities of other active compounds within short timeframes for conducting biological studies. All the reactions used in this manuscript are recognized by their industrial application.
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Affiliation(s)
- Camilo Mahecha-Mahecha
- Laboratory of Organic Synthesis, Bio and Organocatalysis, Chemistry Department, Universidad de Los Andes Cra 1 No. 18A-12 Q:305 Bogotá 111711 Colombia
| | - Paola Borrego-Muñoz
- Escuela de Medicina, Fundación Universitaria Juan N. Corpas Bogotá 110311 Colombia
| | - Luis M Pombo
- Escuela de Medicina, Fundación Universitaria Juan N. Corpas Bogotá 110311 Colombia
| | - Diego Gamba-Sánchez
- Laboratory of Organic Synthesis, Bio and Organocatalysis, Chemistry Department, Universidad de Los Andes Cra 1 No. 18A-12 Q:305 Bogotá 111711 Colombia
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2
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Chaudhari TY, Bisht S, Chorol S, Bhujbal SM, Bharatam PV, Tandon V. Bronsted Acid-Catalyzed Regioselective Carboxamidation of 2-Indolylmethanols with Isonitriles. J Org Chem 2023. [PMID: 37440673 DOI: 10.1021/acs.joc.2c02816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/15/2023]
Abstract
A regioselective direct carboxamidation reaction of 2-indolylmethanols with readily available isocyanoesters/isocyanides has been reported in this work. The reaction was catalyzed by Bronsted acid such as p-TsOH to deliver the benzylic regioselective amides in 67-86% yield under mild conditions. The developed methodology provides alternative access to traditional metal-free carboxamidation via C-C and C-O bond formation with high atom economy. Furthermore, the developed approach was diversified to synthesize chiral indole-2-carboxamide derivatives with a moderate enantiomeric excess (61-73% ee) using an (R)-chiral phosphoric acid.
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Affiliation(s)
| | - Somya Bisht
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi 110067, India
| | - Sonam Chorol
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Shivkanya Madhavrao Bhujbal
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S. A. S. Nagar 160062, Punjab, India
| | - Prasad V Bharatam
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S. A. S. Nagar 160062, Punjab, India
| | - Vibha Tandon
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi 110067, India
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3
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Li M, Zhang R, Gao Q, Jiang H, Lei M, Wu W. Divergent Synthesis of Fused Tetracyclic Heterocycles from Diarylalkynes Enabled by the Selective Insertion of Isocyanide. Angew Chem Int Ed Engl 2022; 61:e202208203. [DOI: 10.1002/anie.202208203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Meng Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510641 China
| | - Ruixue Zhang
- State Key Laboratory of Chemical Resource Engineering Institute of Computational Chemistry College of Chemistry Beijing University of Chemical Technology Beijing 10019 China
| | - Qiushan Gao
- Key Laboratory of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510641 China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510641 China
| | - Ming Lei
- State Key Laboratory of Chemical Resource Engineering Institute of Computational Chemistry College of Chemistry Beijing University of Chemical Technology Beijing 10019 China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510641 China
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4
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Li M, Zhang R, Gao Q, Jiang H, Lei M, Wu W. Divergent Synthesis of Fused Tetracyclic Heterocycles from Diarylalkynes Enabled by the Selective Insertion of Isocyanide. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Meng Li
- South China University of Technology School of Chemistry and Chemical Engineering CHINA
| | - Ruixue Zhang
- Beijing University of Chemical Technology College of Chemistry CHINA
| | - Qiushan Gao
- South China University of Technology School of Chemistry and Chemical Engineering CHINA
| | - Huanfeng Jiang
- South China University of Technology School of Chemistry and Chemical Engineering CHINA
| | - Ming Lei
- Beijing University of Chemical Technology College of Chemistry CHINA
| | - Wanqing Wu
- South China University of Technology School of Chemistry & Chemical Engineering No. 381, Wushan Road, Tianhe Strict, 510640 Guangzhou CHINA
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5
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Kotipalli R, Nagireddy A, Reddy MS. Palladium-catalyzed cyclizative cross coupling of ynone oximes with 2-haloaryl N-acrylamides for isoxazolyl indoline bis-heterocycles. Org Biomol Chem 2022; 20:2609-2614. [PMID: 35298580 DOI: 10.1039/d2ob00065b] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metal-catalyzed cyclizative cross-coupling reactions have attracted enormous attention due to their unique cascade nature. We demonstrated, herein, a dual-cyclizative coupling of ynone oxime ethers with acrylamides for the synthesis of methylene-linked isoxazolyl 2-oxindoles. The cascade was triggered by a palladium(II)-catalyzed ynone oxime ether cyclization, which underwent a Heck-type coupling intercepted by an aryl iodide insertion. Control experiments were carried out to understand the mechanism.
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Affiliation(s)
- Ramesh Kotipalli
- Department of OSPC, CSIR-Indian Institute of Chemical Technology, Habsiguda, Hyderabad 500007, India.,Academy of Scientific and Innovative Research, Ghaziabad 201002, India.
| | - Attunuri Nagireddy
- Department of OSPC, CSIR-Indian Institute of Chemical Technology, Habsiguda, Hyderabad 500007, India.,Academy of Scientific and Innovative Research, Ghaziabad 201002, India.
| | - Maddi Sridhar Reddy
- Department of OSPC, CSIR-Indian Institute of Chemical Technology, Habsiguda, Hyderabad 500007, India.,Academy of Scientific and Innovative Research, Ghaziabad 201002, India.
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6
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An Effient Synthesis of Pyrrolo[1,2‐
a
]quinoxaline Derivatives via Isocyanide Insertion into the N−H Bond of 2‐(1
H
‐pyrrol‐1‐yl)anilines. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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7
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Synthesis of Indoles via Intermolecular and Intramolecular Cyclization by Using Palladium-Based Catalysts. Catalysts 2021. [DOI: 10.3390/catal11091018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
As part of natural products or biologically active compounds, the synthesis of nitrogen-containing heterocycles is becoming incredibly valuable. Palladium is a transition metal that is widely utilized as a catalyst to facilitate carbon-carbon and carbon-heteroatom coupling; it is used in the synthesis of various heterocycles. This review includes the twelve years of successful indole synthesis using various palladium catalysts to establish carbon-carbon or carbon-nitrogen coupling, as well as the conditions that have been optimized.
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8
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Abe T, Noda K, Sawada D. Synthesis of α-substituted indolylacetamide using acetonitriles as acetamide enolate equivalents through O-transfer reactions. Chem Commun (Camb) 2021; 57:7493-7496. [PMID: 34212954 DOI: 10.1039/d1cc02821a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We introduce readily available ammonium hemiaminals as O-transfer reagents and commercially available acetonitriles as a primary amide enolate precursor. The combination serves as an amide enolate equivalent, thereby providing one-pot access to α-substituted indolylacetamides. A broad substrate scope and good functional group tolerance as well as gram-scale synthesis make this protocol highly attractive. Mechanistic experiments suggest that the cyano group is trapped by a hydroxy group of hemiaminals en route to the desired primary amides under metal-free conditions.
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Affiliation(s)
- Takumi Abe
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama 7008530, Japan.
| | - Kenta Noda
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama 7008530, Japan.
| | - Daisuke Sawada
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama 7008530, Japan.
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9
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Zhao Y, Zhou Z, Liu L, Chen M, Yang W, Chen Q, Gardiner MG, Banwell MG. The Copper-Catalyzed Reaction of 2-(1-Hydroxyprop-2-yn-1-yl)phenols with Sulfonyl Azides Leading to C3-Unsubstituted N-Sulfonyl-2-iminocoumarins. J Org Chem 2021; 86:9155-9162. [PMID: 34137260 DOI: 10.1021/acs.joc.1c00331] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An operationally simple synthesis of Z-configured and C3-unsubstituted N-sulfonyl-2-iminocoumarins (e.g., 8a) that proceeds under mild conditions is achieved by reacting 2-(1-hydroxyprop-2-yn-1-yl)phenols (e.g., 6a) with sulfonyl azides (e.g., 7a). The cascade process involved likely starts with a copper-catalyzed alkyne-azide cycloaddition (CuAAC) reaction. This is followed by ring-opening of the resulting metalated triazole (with accompanying loss of nitrogen), reaction of the ensuing ketenimine with the pendant phenolic hydroxyl group, and finally dehydration of the (Z)-N-(4-hydroxychroman-2-ylidene)sulfonamide so formed.
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Affiliation(s)
- Yu Zhao
- Guangdong Key Laboratory for Research and the Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Zitong Zhou
- Guangdong Key Laboratory for Research and the Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Lvling Liu
- The Marine Biomedical Research Institute of Guangdong, Zhanjiang, Guangdong 524023, China
| | - Man Chen
- Guangdong Key Laboratory for Research and the Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Weiguang Yang
- Guangdong Key Laboratory for Research and the Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, Guangdong 524023, China.,The Marine Biomedical Research Institute of Guangdong, Zhanjiang, Guangdong 524023, China.,Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang, Guangdong 524023, China
| | - Qi Chen
- Institute for Advanced and Applied Chemical Synthesis, Jinan UniversityGuangzhou/Zhuhai, 510632/519070, China
| | - Michael G Gardiner
- Research School of Chemistry, Institute of Advanced Studies, The Australian National University, Canberra 2601, Australia
| | - Martin G Banwell
- Guangdong Key Laboratory for Research and the Development of Natural Drugs, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, Guangdong 524023, China.,Institute for Advanced and Applied Chemical Synthesis, Jinan UniversityGuangzhou/Zhuhai, 510632/519070, China.,Research School of Chemistry, Institute of Advanced Studies, The Australian National University, Canberra 2601, Australia
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10
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Luo L, Chen XP, Li ZF, Zhou Y, Xiao YC, Chen FE. Palladium(II)-catalyzed aerobic oxidative O-H/C-H isocyanide insertion: facile access to pyrrolo[2,1- c][1,4]benzoxazine derivatives. Org Biomol Chem 2021; 19:4364-4368. [PMID: 33908987 DOI: 10.1039/d1ob00393c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Palladium-catalyzed aerobic oxidative cyclizations of substituted 2-(1H-pyrrol-1-yl)phenols with isocyanides via an O-H/C-H insertion cascade have been developed. This strategy provides facile access to pyrrolo[2,1-c][1,4]benzoxazine derivatives in good to excellent yields under an O2 atmosphere. The notable features of this protocol include its mild reaction conditions, atom-economy, and broad functional group tolerance.
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Affiliation(s)
- Liangliang Luo
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiao-Pan Chen
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China.
| | - Zhao-Feng Li
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China.
| | - Yuan Zhou
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China.
| | - You-Cai Xiao
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China.
| | - Fen-Er Chen
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China. and Engineering Center of Catalysis and synthesis for Chiral Molecules, Department of chemistry, Fudan University, Shanghai, 200433, China. rfchen@ fudan.edu.cn
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11
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Chen L, Liu X, Zhang J, Duan L, Wen Z, Ni H. Relay Cu(I)/Brønsted Base Catalysis for
Phospha
‐Michael Addition/5‐
exo
‐
dig
Cyclization/Isomerization of
in
situ
Formed
aza
‐Alkynyl
o‐
quinone methides with P(O)−H compounds to C3‐Phosphorylated Indoles. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100275] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Long Chen
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics School of Pharmacy Chengdu University 2025 Chengluo Avenue Chengdu 610016 People's Republic of China
| | - Xiao‐Yan Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics School of Pharmacy Chengdu University 2025 Chengluo Avenue Chengdu 610016 People's Republic of China
| | - Jing Zhang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics School of Pharmacy Chengdu University 2025 Chengluo Avenue Chengdu 610016 People's Republic of China
| | - Li Duan
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics School of Pharmacy Chengdu University 2025 Chengluo Avenue Chengdu 610016 People's Republic of China
| | - Zhong Wen
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics School of Pharmacy Chengdu University 2025 Chengluo Avenue Chengdu 610016 People's Republic of China
| | - Hai‐Liang Ni
- College of Chemistry and Materials Science Sichuan Normal University 5 Jing An Road Chengdu 610066 People's Republic of China
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12
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Fu R, Lu Y, Yue G, Wu D, Xu L, Song H, Cao C, Yu X, Zong Y. Direct Synthesis of 3-Coumaranones with Calcium Carbide as an Acetylene Source. Org Lett 2021; 23:3141-3145. [PMID: 33819044 DOI: 10.1021/acs.orglett.1c00821] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A novel synthesis method for the construction of 3-coumaranones from the reaction of two molecules, calcium carbide and salicylaldehyde, was reported. Various 2-methyl-2-vinylbenzofuran-3(2H)-ones could be obtained in moderate yields in the absence of a metal catalyst. The salient features of this protocol involve widely available starting materials, an inexpensive and easy-to-handle alkyne source, and a cost-efficient route. The reaction mechanism was verified by density functional theory calculations of possible intermediates and corresponding transition states.
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Affiliation(s)
- Rugang Fu
- Key Laboratory of Hexi Corridor Resources Utilization of Gansu, College of Chemistry and Chemical Engineering, Hexi University, Zhangye 734000, P. R. China
| | - Yongzheng Lu
- Key Laboratory of Hexi Corridor Resources Utilization of Gansu, College of Chemistry and Chemical Engineering, Hexi University, Zhangye 734000, P. R. China
| | - Guoren Yue
- Key Laboratory of Hexi Corridor Resources Utilization of Gansu, College of Chemistry and Chemical Engineering, Hexi University, Zhangye 734000, P. R. China
| | - Dongqing Wu
- Key Laboratory of Hexi Corridor Resources Utilization of Gansu, College of Chemistry and Chemical Engineering, Hexi University, Zhangye 734000, P. R. China
| | - Li Xu
- Key Laboratory of Hexi Corridor Resources Utilization of Gansu, College of Chemistry and Chemical Engineering, Hexi University, Zhangye 734000, P. R. China
| | - Hai Song
- Key Laboratory of Hexi Corridor Resources Utilization of Gansu, College of Chemistry and Chemical Engineering, Hexi University, Zhangye 734000, P. R. China
| | - Cheng Cao
- Key Laboratory of Hexi Corridor Resources Utilization of Gansu, College of Chemistry and Chemical Engineering, Hexi University, Zhangye 734000, P. R. China
| | - Xinghai Yu
- Key Laboratory of Hexi Corridor Resources Utilization of Gansu, College of Chemistry and Chemical Engineering, Hexi University, Zhangye 734000, P. R. China
| | - Yingxiao Zong
- Key Laboratory of Hexi Corridor Resources Utilization of Gansu, College of Chemistry and Chemical Engineering, Hexi University, Zhangye 734000, P. R. China
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13
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Chen X, Shatskiy A, Liu JQ, D Kärkäs M, Wang XS. Synthesis of Sulfonylated Heterocycles via Copper-Catalyzed Heteroaromatization/Sulfonyl Transfer of Propargylic Alcohols. Chem Asian J 2021; 16:30-33. [PMID: 33025769 DOI: 10.1002/asia.202001126] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 10/01/2020] [Indexed: 01/04/2023]
Abstract
An unprecedented copper-catalyzed heteroaromatization/sulfonyl transfer of propargylic alcohols with isocyanide has been developed. 3-Sulfonyl benzofurans and indoles were produced under Cu(I) catalysis in good to high yields. The developed catalytic methodology provides controlled, modular, and facile access to sulfonyl benzoheterocycle scaffolds.
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Affiliation(s)
- Xinyi Chen
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University, 221116, Xuzhou, Jiangsu, P. R. China
| | - Andrey Shatskiy
- Department of Chemistry, KTH Royal Institute of Technology, 100 44, Stockholm, Sweden
| | - Jian-Quan Liu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University, 221116, Xuzhou, Jiangsu, P. R. China.,Department of Chemistry, KTH Royal Institute of Technology, 100 44, Stockholm, Sweden
| | - Markus D Kärkäs
- Department of Chemistry, KTH Royal Institute of Technology, 100 44, Stockholm, Sweden
| | - Xiang-Shan Wang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials Jiangsu Normal University, 221116, Xuzhou, Jiangsu, P. R. China
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14
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Shiri M, Farajinia-Lehi N, Salehi P, Tanbakouchian Z. Transition Metal and Inner Transition Metal Catalyzed Amide Derivatives Formation through Isocyanide Chemistry. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1707357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractThe synthesis of amides is a substantial research area in organic chemistry because of their ubiquitous presence in natural products and bioactive molecules. The use of easily accessible isocyanides as amidoyl (carbamoyl) synthons in cross-coupling reactions using transition metal and inner transition metöal catalysts is a current trend in this area. Isocyanides, owing to their coordination ability as a ligand and inherent electronic properties for reactions with various partners, have expanded the potential application of these transformations for the preparation of novel synthetic molecules and pharmaceutical candidates. This review gives an overview of the achievements in isocyanide-based transition metal and inner transition metal catalyzed amide formation and discusses highlights of the proposed distinct mechanisms.1 Introduction2 Synthesis of Arenecarboxamides3 Synthesis of Alkanamides4 Synthesis of Cyclic Amides5 Formation of Alkynamides6 Formation of Acrylamide-like Molecules7 Formation of Ureas and Carbamates8 Conclusion
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Affiliation(s)
- Morteza Shiri
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University
- Department of R&D, Pakshoo Industrial Group, Second Alley
| | | | - Parvin Salehi
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University
| | - Zahra Tanbakouchian
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University
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15
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Liu X, Liu Y, Chen L. Tandem Annulations of Propargylic Alcohols to Indole Derivatives. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000930] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xiao‐Yan Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics Chengdu University 168 Hua Guan Road Chengdu 610052 People's Republic of China
| | - Yun‐Lin Liu
- School of Chemistry and Chemical Engineering Guangzhou University 230 Wai Huan Xi Road Guangzhou 510006 People's Republic of China
| | - Long Chen
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province Sichuan Industrial Institute of Antibiotics Chengdu University 168 Hua Guan Road Chengdu 610052 People's Republic of China
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16
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Collet JW, Roose TR, Weijers B, Maes BUW, Ruijter E, Orru RVA. Recent Advances in Palladium-Catalyzed Isocyanide Insertions. Molecules 2020; 25:E4906. [PMID: 33114013 PMCID: PMC7660339 DOI: 10.3390/molecules25214906] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/19/2020] [Accepted: 10/20/2020] [Indexed: 12/17/2022] Open
Abstract
Isocyanides have long been known as versatile chemical reagents in organic synthesis. Their ambivalent nature also allows them to function as a CO-substitute in palladium-catalyzed cross couplings. Over the past decades, isocyanides have emerged as practical and versatile C1 building blocks, whose inherent N-substitution allows for the rapid incorporation of nitrogeneous fragments in a wide variety of products. Recent developments in palladium catalyzed isocyanide insertion reactions have significantly expanded the scope and applicability of these imidoylative cross-couplings. This review highlights the advances made in this field over the past eight years.
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Affiliation(s)
- Jurriën W. Collet
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines & Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands; (J.W.C.); (T.R.R.); (B.W.)
- Organic Synthesis, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - Thomas R. Roose
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines & Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands; (J.W.C.); (T.R.R.); (B.W.)
| | - Bram Weijers
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines & Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands; (J.W.C.); (T.R.R.); (B.W.)
| | - Bert U. W. Maes
- Organic Synthesis, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - Eelco Ruijter
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines & Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands; (J.W.C.); (T.R.R.); (B.W.)
| | - Romano V. A. Orru
- Department of Chemistry and Pharmaceutical Sciences and Amsterdam Institute for Molecules, Medicines & Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands; (J.W.C.); (T.R.R.); (B.W.)
- Organic Chemistry, Aachen-Maastricht Institute for Biobased Materials, Maastricht University, Urmonderlaan 22, 6167 RD Geleen, The Netherlands
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17
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Huang K, Liu JB, Chen ZF, Wang YC, Yadav S, Qiu G. Palladium-Catalyzed Imidoylation-Triggered [2 + 2 + 1] Cyclization of Internal Alkyne with Isocyanides. Org Lett 2020; 22:5931-5935. [PMID: 32662274 DOI: 10.1021/acs.orglett.0c02019] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In this work, a palladium-catalyzed [2 + 2 + 1] cyclization of internal alkynes with double isocyanides is described. This facile procedure is efficient for synthesizing various pyrrolo[3,2-c]quinolin-2-amines. The reaction worked well with a broad reaction scope. In the process, it is believed that sequential double isocyanide insertion, 6-exo-dig cyclization of alkyne, and addition of an imino group are involved.
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Affiliation(s)
- Keke Huang
- School of Metallurgical and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China.,College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, China
| | - Jin-Biao Liu
- School of Metallurgical and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Zhi-Feng Chen
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, China
| | - Yu-Chao Wang
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, China
| | - Sarita Yadav
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, China
| | - Guanyinsheng Qiu
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, China
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18
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Abstract
:
The benzofuranyl motif present in compounds exhibits various medicinal properties and
non-drug applications. These derivatives are naturally occurring compounds or synthetic materials,
which cover a broad spectrum of pharmacological activities like anti-inflammatory, anti-diabetic, anti-
depressant, anti-HIV, anti-microbial, anti-proliferative, anti-convulsant, cytotoxic, analgesic, etc.
Few of the commercially interesting compounds from this class are, ailanthoidol (anti-inflammatory),
amiodarone, dronedarone, celivarone (anti-arrhythmic), bufuralol (muscular airways relaxant), morphine,
5-(2-aminopropyl)benzofuran; 5-APB, 6-(2-aminopropyl)benzofuran; 6-APB (CNS), rifampicin
(antibiotic), etc., whereas, some of the non-drug applications are in perfumery industry (bergapten)
and as tannin activators in sunscreen preparations (psoralen, 8-methoxypsoralen, and angelicin).
Considering these interesting biological activities and commercial utilities, a review on the synthetic
aspects of this privileged scaffold was attempted. For the benefit of natural product-based drug discovery,
available sources of these derivatives, extraction process and reported biological activities
have also been outlined in this review.
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Affiliation(s)
- Andiappan Lavanya
- Department of Training and Development, Orchid Pharma Ltd., 138-149, SIDCO Industrial Estate, Alathur, Chennai- 603 110, Tamil Nadu, India
| | - Kilambi Narasimhan
- Department of Training and Development, Orchid Pharma Ltd., 138-149, SIDCO Industrial Estate, Alathur, Chennai- 603 110, Tamil Nadu, India
| | - Vediappen Padmini
- Department of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625021, Tamil Nadu, India
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19
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Wang J, Liu Y, Xiong Z, Zhong L, Ding S, Li L, Zhao H, Chen C, Shang Y. Palladium-catalysed dearomative aryl/cycloimidoylation of indoles. Chem Commun (Camb) 2020; 56:3249-3252. [PMID: 32108847 DOI: 10.1039/d0cc00402b] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The first example of a dearomative palladium-catalysed isocyanide insertion reaction has been developed using functionalized isocyanides as the reaction partner of N-(2-bromobenzoyl)indoles. The imidoyl-palladium intermediate generated by tandem indole double bond/isocyanide insertion reactions could be trapped by intramolecular functional groups such as the C(sp2)-H bond and alkenes, affording diversified indoline derivatives bearing C3 imine-containing heterocycles. The dearomative aryl/cycloimidoylation of indoles proceeded smoothly in good to excellent yields with a wide functional group tolerance.
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Affiliation(s)
- Jian Wang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Yuan Liu
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Zhuang Xiong
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Ling Zhong
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Shumin Ding
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Lianjie Li
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Haixia Zhao
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Chen Chen
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
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20
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Liu XY, Zou YX, Ni HL, Zhang J, Dong HB, Chen L. Copper-catalyzed tandem phosphorylative allenylation/cyclization of 1-(o-aminophenyl)prop-2-ynols with the P(O)–H species: access to C2-phosphorylmethylindoles. Org Chem Front 2020. [DOI: 10.1039/d0qo00159g] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A novel method to synthesize C2-phosphorylmethylindoles via the carbocation formation initiated tandem phosphorylative allenylation/cyclization of 1-(o-aminophenyl)prop-2-ynols with the P(O)–H species has been developed.
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Affiliation(s)
- Xiao-Yan Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- P. R. China
| | - Yun-Xiang Zou
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- P. R. China
| | - Hai-Liang Ni
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu 610066
- P. R. China
| | - Jing Zhang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- P. R. China
| | - Hong-Bo Dong
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- P. R. China
| | - Long Chen
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu 610052
- P. R. China
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21
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Neto JSS, Zeni G. Recent advances in the synthesis of indoles from alkynes and nitrogen sources. Org Chem Front 2020. [DOI: 10.1039/c9qo01315f] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This review highlights ten years of success in the synthesis of indoles using alkynes and nitrogen sources as substrates.
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Affiliation(s)
- José Sebastião Santos Neto
- Laboratório de Síntese
- Reatividade
- Avaliação Farmacológica e Toxicológica de Organocalcogênios CCNE
- UFSM
- Santa Maria
| | - Gilson Zeni
- Laboratório de Síntese
- Reatividade
- Avaliação Farmacológica e Toxicológica de Organocalcogênios CCNE
- UFSM
- Santa Maria
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22
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Singam MKR, Nagireddy A, Rajesh M, Ganesh V, Reddy MS. Ni-Catalyzed electrophile driven regioselective arylative cyclization of ortho-functional diaryl acetylenes for the synthesis of pyridine and indene derivatives. Org Chem Front 2020. [DOI: 10.1039/c9qo01266d] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A regioselective arylative cyclization of ortho functional diaryl acetylenes for the synthesis of selectively substituted diaryl pyridine and indene derivatives is accomplished through an electrophile driven alkyne polarization.
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Affiliation(s)
- Maneesh Kumar Reddy Singam
- Department of OSPC
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Academy of Scientific and Innovative Research
| | - Attunuri Nagireddy
- Department of OSPC
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Academy of Scientific and Innovative Research
| | - Manda Rajesh
- Department of OSPC
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Academy of Scientific and Innovative Research
| | - Veeramalla Ganesh
- Department of OSPC
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Academy of Scientific and Innovative Research
| | - Maddi Sridhar Reddy
- Department of OSPC
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Academy of Scientific and Innovative Research
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23
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Chen X, Qiu G, Liu R, Chen D, Chen Z. Divergent oriented synthesis (DOS) of aza-heterocyclic amides through palladium-catalyzed ketenimination of 2-iodo-N-(propa-1,2-dien-1-yl)anilines. Org Chem Front 2020. [DOI: 10.1039/c9qo01451a] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A palladium-catalyzed tandem reaction of N-(2-iodophenyl)-4-methyl-N-(propa-1,2-dien-1-yl)benzenesulfonamide with isocyanide is described to divergently produce aza-heterocyclic amides.
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Affiliation(s)
- Xiaoyan Chen
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education and College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Nanchang
- P. R. China
| | - Guanyinsheng Qiu
- College of Biological
- Chemical Sciences and Engineering
- Jiaxing University
- Jiaxing 314001
- China
| | - Renzhi Liu
- College of Biological
- Chemical Sciences and Engineering
- Jiaxing University
- Jiaxing 314001
- China
| | - Dianpeng Chen
- Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Zhiyuan Chen
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education and College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Nanchang
- P. R. China
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24
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Parameshwar M, Rajesh M, Balasubramanian S, Sridhar Reddy M. Base Mediated Tandem Vinylogous Addition and Cyclization of γ-Phosphonyl/Sulfonyl Crotonates and Ynones: Synthesis of Functionalized 2-Pyrones. ACS OMEGA 2019; 4:18846-18854. [PMID: 31737846 PMCID: PMC6854826 DOI: 10.1021/acsomega.9b02874] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 10/18/2019] [Indexed: 06/10/2023]
Abstract
A general method for highly functionalized 2-pyrones via a base-mediated sequential vinylogous addition and cyclization of γ-phosphonyl/sulfonyl crotonates and ynones are described. An exclusive E-geometry with respect to the newly generated olefin substituent at C3 of pyrone was observed. Imino glyoxalates and glycine imines similarly reacted with ynones to deliver 3-imino pyrones.
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Affiliation(s)
- Matam Parameshwar
- OSPC
Department, CSIR-Indian Institute of Chemical
Technology, Habsiguda, Hyderabad 500007, India
- Academy
of Scientific and Innovative Research, New Delhi 110001, India
| | - Manda Rajesh
- OSPC
Department, CSIR-Indian Institute of Chemical
Technology, Habsiguda, Hyderabad 500007, India
- Academy
of Scientific and Innovative Research, New Delhi 110001, India
| | | | - Maddi Sridhar Reddy
- OSPC
Department, CSIR-Indian Institute of Chemical
Technology, Habsiguda, Hyderabad 500007, India
- Academy
of Scientific and Innovative Research, New Delhi 110001, India
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25
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Wei W, Ying W, Meng X, Song S, Li Q. Copper‐Mediated Cascade Trifunctionalization of
N
‐Propargylamides. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900547] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Wen‐Ting Wei
- School of Materials Science and Chemical EngineeringNingbo University Ningbo 315211 P. R. China
| | - Wei‐Wei Ying
- School of Materials Science and Chemical EngineeringNingbo University Ningbo 315211 P. R. China
| | - Xiao‐Xiao Meng
- School of Materials Science and Chemical EngineeringNingbo University Ningbo 315211 P. R. China
| | - Si‐Zhe Song
- School of Materials Science and Chemical EngineeringNingbo University Ningbo 315211 P. R. China
| | - Qiang Li
- Institution of Functional Organic Molecules and Materials School of Chemistry and Chemical EngineeringLiaocheng University Liaocheng 252059 P. R. China
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26
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Tao SW, Zhou JY, Liu RQ, Zhu YM. One-Pot Synthesis of N-Imidoyl-(1 H)-indoles via Palladium-Catalyzed Oxidative Insertion Domino Reaction with Isocyanide and Arylboronic Acid. J Org Chem 2019; 84:8121-8130. [PMID: 31132259 DOI: 10.1021/acs.joc.9b00990] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Efficient one-pot synthesis of N-imidoyl-(1 H)-indoles has been described, which is achieved by the palladium-catalyzed oxidative insertion of 2-(phenylethynyl)aniline, arylboronic acid, and isonitrile. This method provides a new way to synthesize N-imidoyl-(1 H)-indoles, which has a wide substrate scope, good functional group tolerance, and mild reaction condition.
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Affiliation(s)
- Shou-Wei Tao
- College of Pharmaceutical Sciences , Soochow University , Suzhou 215123 , China
| | - Jing-Ya Zhou
- College of Pharmaceutical Sciences , Soochow University , Suzhou 215123 , China
| | - Rui-Qing Liu
- College of Pharmaceutical Sciences , Soochow University , Suzhou 215123 , China
| | - Yong-Ming Zhu
- College of Pharmaceutical Sciences , Soochow University , Suzhou 215123 , China
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27
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Hao W, Sha Y, Deng Y, Luo Y, Zeng L, Tang S, Weng Y, Chiang CW, Lei A. XANES/EPR Evidence of the Oxidation of Nickel(II) Quinolinylpropioamide and Its Application in Csp 3 -H Functionalization. Chemistry 2019; 25:4931-4934. [PMID: 30768816 DOI: 10.1002/chem.201900009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Indexed: 12/28/2022]
Abstract
An in situ generated oxidation species of nickel quinolinylpropioamide intermediate was produced. Characterization by X-ray absorption near edge structure (XANES) and EPR provides complementary insights into this oxidized nickel species. With aliphatic amides and isocyanides as substrates, a nickel-catalyzed facile synthesis of structurally diverse five-membered lactams could be achieved.
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Affiliation(s)
- Wenyan Hao
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, 330022, P.R. China
| | - Yuchen Sha
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P.R. China
| | - Yi Deng
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P.R. China
| | - Yi Luo
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P.R. China
| | - Li Zeng
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P.R. China
| | - Shan Tang
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P.R. China
| | - Yue Weng
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P.R. China.,National Synchrotron Radiation Research Center (NSRRC), Hsinchu Science Park, Hsinchu, Taiwan
| | - Chien-Wei Chiang
- College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P.R. China
| | - Aiwen Lei
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, 330022, P.R. China.,College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P.R. China
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28
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Wang F, Xu P, Liu BB, Wang SY, Ji SJ. Pd-Catalyzed multicomponent reaction of sulfonyl azides, primary amines and methyl α-isocyanoacetates: highly efficient synthesis of tetrasubstituted imidazolone derivatives. Org Chem Front 2019. [DOI: 10.1039/c9qo01122f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A highly efficient Pd-catalyzed multicomponent reaction of sulfonyl azides, primary amines and methyl α-isocyanoacetates was developed.
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Affiliation(s)
- Fei Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Centre of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Pei Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Centre of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Bei-Bei Liu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Centre of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Shun-Yi Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Centre of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Centre of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
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29
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Rajesh M, Singam MKR, Gadi RK, Sridhar Reddy M. 3-Heterosubstituted Benzofurans from Hydroxyphenyl Propargyl Alcohols via ortho-Quinone Methide through a Metal-/Catalyst-Free Conjugate Addition/Oxy-Cyclization. ACS OMEGA 2018; 3:17155-17163. [PMID: 31458335 PMCID: PMC6644147 DOI: 10.1021/acsomega.8b02480] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Accepted: 11/29/2018] [Indexed: 06/10/2023]
Abstract
A facile route to 3-sulfonylated and 3-(1-benzotriazolyl)-benzofurans is achieved from readily available o-hydroxyphenyl propargyl alcohols (o-HPPAs) and bench-top sodium sulfonylates and benzotriazoles with no assistance of any reagent or catalyst. Bifunctional o-quinone methides (o-QMs) were the putative reaction intermediates ensued from dehydration of o-HPPA. Our study revealed that the o-QM was so choosy in selection of the nucleophiles for the key Michael addition reaction.
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Affiliation(s)
- Manda Rajesh
- CSIR-Indian
Institute of Chemical Technology—OSPC Division, Hyderabad, Telengana 500007, India
- Academy
of Scientific and Innovative Research, New Delhi 110001, India
| | - Maneesh Kumar Reddy Singam
- CSIR-Indian
Institute of Chemical Technology—OSPC Division, Hyderabad, Telengana 500007, India
- Academy
of Scientific and Innovative Research, New Delhi 110001, India
| | - Ranjith Kumar Gadi
- CSIR-Indian
Institute of Chemical Technology—OSPC Division, Hyderabad, Telengana 500007, India
- Academy
of Scientific and Innovative Research, New Delhi 110001, India
| | - Maddi Sridhar Reddy
- CSIR-Indian
Institute of Chemical Technology—OSPC Division, Hyderabad, Telengana 500007, India
- Academy
of Scientific and Innovative Research, New Delhi 110001, India
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30
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Affiliation(s)
- Jasper Biemolt
- Department of Chemistry & Pharmaceutical Sciences and Amsterdam; Institute for Molecules; Medicines & Systems; Vrije Universiteit Amsterdam; De Boelelaan 1108 1081HZ Amsterdam The Netherlands
| | - Eelco Ruijter
- Department of Chemistry & Pharmaceutical Sciences and Amsterdam; Institute for Molecules; Medicines & Systems; Vrije Universiteit Amsterdam; De Boelelaan 1108 1081HZ Amsterdam The Netherlands
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31
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Samanta S, Hajra A. Ruthenium-catalyzed tandem annulation/arylation for the synthesis of unsymmetrical bis(heteroaryl)methanes. Org Biomol Chem 2018; 16:8390-8394. [PMID: 30209462 DOI: 10.1039/c8ob01892h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A new Ru-catalyzed tandem furan annulation/arylation strategy has been developed to afford unsymmetrical bis(heteroaryl)methanes by a reaction between propargyl amines and indoles. A series of bis(heteroaryl)methanes containing furan and indole as well as indole and imidazopyridine moieties have been synthesized in high yields. The reaction possibly proceeds through furan annulation followed by nucleophilic addition of indole.
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Affiliation(s)
- Sadhanendu Samanta
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235 West Bengal, India.
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32
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Kalvacherla B, Batthula S, Balasubramanian S, Palakodety RK. Transition-Metal-Free Cyclization of Propargylic Alcohols with Aryne: Synthesis of 3-Benzofuranyl-2-oxindole and 3-Spirooxindole Benzofuran Derivatives ⊥. Org Lett 2018; 20:3824-3828. [PMID: 29920110 DOI: 10.1021/acs.orglett.8b01414] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
An unprecedented base-mediated cyclization of propargylic alcohols with aryne is reported, providing a novel method for the synthesis of 3-benzofuranyl-2-oxindole and 3-spirooxindole benzofuran scaffolds via a propargyl Claisen rearrangement/cycloaddition pathway. The nature of the substituent on acetylene group of propargylic alcohol influences the outcome of the reaction. The protocol offers a transition-metal-free and operationally simple methodology with broad substrate scope as a ready access to complex oxindole-linked heterocyclic compounds.
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Affiliation(s)
- Babachary Kalvacherla
- D-211, Discovery Laboratory, Organic and Biomolecular Chemistry Division , CSIR-Indian Institute of Chemical Technology , Hyderabad - 500007 , India.,Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110025 , India
| | - Srinivas Batthula
- D-211, Discovery Laboratory, Organic and Biomolecular Chemistry Division , CSIR-Indian Institute of Chemical Technology , Hyderabad - 500007 , India
| | - Sridhar Balasubramanian
- Center for X-ray Crystallography , CSIR-Indian Institute of Chemical Technology , Hyderabad - 500007 , India
| | - Radha Krishna Palakodety
- D-211, Discovery Laboratory, Organic and Biomolecular Chemistry Division , CSIR-Indian Institute of Chemical Technology , Hyderabad - 500007 , India
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33
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Fu R, Li Z. Direct Synthesis of 2-Methylbenzofurans from Calcium Carbide and Salicylaldehyde p-Tosylhydrazones. Org Lett 2018; 20:2342-2345. [PMID: 29633847 DOI: 10.1021/acs.orglett.8b00676] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A new methodology for the construction of methyl-substituted benzofuran rings from the reactions of calcium carbide with salicylaldehyde p-tosylhydrazones/2-hydroxyacetophenone p-tosylhydrazones is described. Various 2-methylbenzofurans and 2,3-dimethylbenzofurans could be obtained in satisfactory yield by using a cuprous chloride catalyst. The advantages of this protocol include the use of a readily available and easy-to-handle acetylene source and simple workup procedure.
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Affiliation(s)
- Rugang Fu
- College of Chemistry and Chemical Engineering , Northwest Normal University , Lanzhou , Gansu 730070 , P. R. China
| | - Zheng Li
- College of Chemistry and Chemical Engineering , Northwest Normal University , Lanzhou , Gansu 730070 , P. R. China
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34
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Luo S, Xiong Z, Lu Y, Zhu Q. Enantioselective Synthesis of Planar Chiral Pyridoferrocenes via Palladium-Catalyzed Imidoylative Cyclization Reactions. Org Lett 2018. [PMID: 29537285 DOI: 10.1021/acs.orglett.8b00348] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A highly efficient synthesis of planar chiral pyrido[3,4- b] ferrocenes by a palladium-catalyzed enantioselective isocyanide insertion/desymmetric C(sp2)-H bond activation reaction was developed. Various planar chiral pyridoferrocenes were obtained in high yields with good to excellent enantioselectivity under mild conditions (up to 99% yield, 99% ee), enabled by a unique SPINOL-derived phosphoramidite ligand.
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Affiliation(s)
- Shuang Luo
- State Key Laboratory of Respiratory Disease , Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences , 190 Kaiyuan Avenue , Guangzhou 510530 , China.,University of Chinese Academy of Sciences , No. 19(A) Yuquan Road , Shijingshan District , Beijing 100049 , China
| | - Zhuang Xiong
- State Key Laboratory of Respiratory Disease , Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences , 190 Kaiyuan Avenue , Guangzhou 510530 , China.,University of Chinese Academy of Sciences , No. 19(A) Yuquan Road , Shijingshan District , Beijing 100049 , China
| | - Yongzhi Lu
- State Key Laboratory of Respiratory Disease , Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences , 190 Kaiyuan Avenue , Guangzhou 510530 , China.,University of Chinese Academy of Sciences , No. 19(A) Yuquan Road , Shijingshan District , Beijing 100049 , China
| | - Qiang Zhu
- State Key Laboratory of Respiratory Disease , Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences , 190 Kaiyuan Avenue , Guangzhou 510530 , China.,University of Chinese Academy of Sciences , No. 19(A) Yuquan Road , Shijingshan District , Beijing 100049 , China
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35
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Kumar R, Thorat SH, Reddy MS. Cu-Catalyzed iminative hydroolefination of unactivated alkynes en route to 4-imino-tetrahydropyridines and 4-aminopyridines. Chem Commun (Camb) 2018; 52:13475-13478. [PMID: 27790654 DOI: 10.1039/c6cc08081b] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A general method for synthesizing 4-imino tetrahydropyridine derivatives is achieved, from readily available β-enaminones and sulfonyl azides, which comprises a sequential copper catalyzed ketenimine formation and its hitherto inaccessible intramolecular hydrovinylation. The products are shown as ready precursors for highly valuable 4-sulfonamidopyridine derivatives via DDQ mediated oxidation.
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Affiliation(s)
- Ravi Kumar
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, Lucknow 226031, India. and Academy of Scientific and Innovative Research, New Delhi 110001, India
| | - Shridhar H Thorat
- Centre for Materials Characterization, CSIR-NCL, Dr Homi Bhabha Road, Pune-411008, India
| | - Maddi Sridhar Reddy
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, Lucknow 226031, India. and Academy of Scientific and Innovative Research, New Delhi 110001, India
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36
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Ranjith Kumar G, Kumar R, Rajesh M, Sridhar Reddy M. A nickel-catalyzed anti-carbometallative cyclization of alkyne–azides with organoboronic acids: synthesis of 2,3-diarylquinolines. Chem Commun (Camb) 2018; 54:759-762. [DOI: 10.1039/c7cc08408k] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An anti-carbonickelative cyclization via reversible alkenylnickel E/Z isomerization of 2-azido phenyl propargyl alcohols with aryl boronic acids is achieved using Ni(acac)2 as the catalyst to access 2,3-diaryl quinolines.
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Affiliation(s)
- Gadi Ranjith Kumar
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
| | - Ravi Kumar
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
| | - Manda Rajesh
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Maddi Sridhar Reddy
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
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37
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Clemenceau A, Wang Q, Zhu J. Cooperative Pd/Cu Catalysis: Multicomponent Synthesis of Tetrasubstituted Imidazolones from Methyl α-Isocyanoacetates, Primary Amines, and Aryl(vinyl) Iodides. Org Lett 2017; 20:126-129. [DOI: 10.1021/acs.orglett.7b03479] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Antonin Clemenceau
- Laboratory of Synthesis and Natural Products,
Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015 Lausanne, Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products,
Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015 Lausanne, Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products,
Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015 Lausanne, Switzerland
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38
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Clemenceau A, Wang Q, Zhu J. Silver Nitrate-Catalyzed Isocyanide Insertion/Lactamization Sequence to Imidazolones and Quinazolin-4-ones: Development and Application in Natural Product Synthesis. Org Lett 2017; 19:4872-4875. [DOI: 10.1021/acs.orglett.7b02334] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Antonin Clemenceau
- Laboratory of Synthesis and
Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015 Lausanne, Switzerland
| | - Qian Wang
- Laboratory of Synthesis and
Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015 Lausanne, Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and
Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015 Lausanne, Switzerland
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39
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Mamboury M, Wang Q, Zhu J. α-Oxo-Ketenimines from Isocyanides and α-Haloketones: Synthesis and Divergent Reactivity. Chemistry 2017; 23:12744-12748. [PMID: 28755439 DOI: 10.1002/chem.201703458] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Indexed: 12/30/2022]
Abstract
The palladium-catalyzed reaction of α-haloketones with isocyanides afforded α-oxo-ketenimines through β-hydride elimination of the β-oxo-imidoyl palladium intermediates. Reaction of these relatively stable α-oxo-ketenimines with nucleophiles such as hydrazines, hydrazoic acid, amines, and Grignard reagent afforded pyrazoles, tetrazole, β-keto amidines, and enaminone, respectively, with high chemoselectivity. Whereas amines attack exclusively on the ketenimine functions, the formal [3+2] cycloaddition between N-monosubstituted hydrazines and α-oxo-ketenimines was initiated by nucleophilic addition to the carbonyl group.
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Affiliation(s)
- Mathias Mamboury
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
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40
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Lu F, Chen Z, Li Z, Wang X, Peng X, Li C, Fang L, Liu D, Gao M, Lei A. Palladium/Copper-Catalyzed Oxidative Coupling of Arylboronic Acids with Isocyanides: Selective Routes to Amides and Diaryl Ketones. Org Lett 2017; 19:3954-3957. [PMID: 28719218 DOI: 10.1021/acs.orglett.7b01548] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient and alternative oxidative cross-coupling strategy starting from arylboronic acids and isocyanides for the selective synthesis of amides and diaryl ketones with palladium/copper catalysis is developed. Various substituted benzamides and benzophenones could be obtained in good yields. The reaction represents an efficient and alternative strategy for the synthesis of carbonyl compounds.
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Affiliation(s)
- Fangling Lu
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University , Nanchang, Jiangxi 330022, P. R. China
| | - Ziyue Chen
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University , Nanchang, Jiangxi 330022, P. R. China
| | - Zhen Li
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University , Nanchang, Jiangxi 330022, P. R. China
| | - Xiaoyan Wang
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University , Nanchang, Jiangxi 330022, P. R. China
| | - Xinyue Peng
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University , Nanchang, Jiangxi 330022, P. R. China
| | - Cong Li
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University , Nanchang, Jiangxi 330022, P. R. China
| | - Lingtong Fang
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University , Nanchang, Jiangxi 330022, P. R. China
| | - Dong Liu
- College of Chemistry and Molecular Sciences, the Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Meng Gao
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University , Nanchang, Jiangxi 330022, P. R. China
| | - Aiwen Lei
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University , Nanchang, Jiangxi 330022, P. R. China.,College of Chemistry and Molecular Sciences, the Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, P. R. China
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41
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Dwivedi V, Kumar R, Sharma K, Sridhar B, Reddy MS. Copper-Promoted Regioselective Intermolecular Diamination of Ynamides: Synthesis of Imidazo[1,2- a]pyridines. ACS OMEGA 2017; 2:2770-2777. [PMID: 31457615 PMCID: PMC6641143 DOI: 10.1021/acsomega.7b00426] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 06/05/2017] [Indexed: 06/10/2023]
Abstract
A facile access to 3-heterosubstituted (3-oxazolidinonyl/indolyl/phenoxy) imidazo[1,2-a]pyridines from readily available 2-aminopyridines and electron-rich (internally activated) alkynes like ynamides/ynamines/ynol ethers is achieved via Cu(OTf)2-mediated intermolecular diamination under aerobic conditions. The reaction is highly regioselective, owing to internal electron bias, and thus led to a single regioisomer with heterosubstitution at C3.
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Affiliation(s)
- Vikas Dwivedi
- Medicinal
& Process Chemistry Division, CSIR-Central
Drug Research Institute, Sector 10, Jankipuram Extn, Sitapur Road, Lucknow 226031, India
| | - Ravi Kumar
- Medicinal
& Process Chemistry Division, CSIR-Central
Drug Research Institute, Sector 10, Jankipuram Extn, Sitapur Road, Lucknow 226031, India
- Academy
of Scientific and Innovative Research, New Delhi 110001, India
| | - Kavita Sharma
- National
Institute of Pharmaceutical Education and Research, Raebareli 229010, India
| | - Balasubramanian Sridhar
- X-Ray Crystallography Division and MCB Division, CSIR-IICT, Tarnaka, Hyderabad 500007, India
| | - Maddi Sridhar Reddy
- Medicinal
& Process Chemistry Division, CSIR-Central
Drug Research Institute, Sector 10, Jankipuram Extn, Sitapur Road, Lucknow 226031, India
- X-Ray Crystallography Division and MCB Division, CSIR-IICT, Tarnaka, Hyderabad 500007, India
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42
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Wang J, Gao DW, Huang J, Tang S, Xiong Z, Hu H, You SL, Zhu Q. Palladium-Catalyzed Enantioselective C(sp2)–H Imidoylation by Desymmetrization. ACS Catal 2017. [DOI: 10.1021/acscatal.7b00731] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Jian Wang
- State
Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine
and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China
| | - De-Wei Gao
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Jinbo Huang
- State
Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine
and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China
| | - Shi Tang
- State
Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine
and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China
| | - Zhuang Xiong
- State
Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine
and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China
| | - Huaanzi Hu
- State
Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine
and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China
| | - Shu-Li You
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Qiang Zhu
- State
Key Laboratory of Respiratory Disease, Guangzhou Institutes of Biomedicine
and Health, Chinese Academy of Sciences, 190 Kaiyuan Avenue, Guangzhou 510530, China
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43
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Rajesh M, Puri S, Kant R, Sridhar Reddy M. Ag-Catalyzed Intramolecular Sequential Vicinal Diamination of Alkynes with Isocyanates: Synthesis of Fused Indole-Cyclic Urea Derivatives. J Org Chem 2017; 82:5169-5177. [DOI: 10.1021/acs.joc.7b00417] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
| | | | | | - Maddi Sridhar Reddy
- MCB
Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, India
- Academy of Scientific and Innovative Research, New Delhi, 110001, India
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44
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Rehan M, Nallagonda R, Das BG, Meena T, Ghorai P. Synthesis of Functionalized Benzo[b]furans via Oxidative Cyclization of o-Cinnamyl Phenols. J Org Chem 2017; 82:3411-3424. [PMID: 28249386 DOI: 10.1021/acs.joc.6b02752] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Disclosed herein is an efficient synthetic route for the synthesis of functionalized 2-benzyl benzo[b]furans via a regioselective 5-exo-trig intramolecular oxidative cyclization of ortho-cinnamyl phenols using [PdCl2(CH3CN)2] as catalyst and benzoquinone as an oxidant. Further, a sequential ortho-cinnamylation of phenols using cinnamyl alcohols catalyzed by Re2O7, followed by an oxidative cyclization using the above Pd catalyst, is performed. The reaction showed broad substrate scope with good to excellent yields.
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Affiliation(s)
- Mohammad Rehan
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| | - Rajender Nallagonda
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| | - Braja Gopal Das
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| | - Tannu Meena
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| | - Prasanta Ghorai
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
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45
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He X, Yu Z, Zuo Y, Yang C, Shang Y. Direct carboxamidation of cyclic 2-diazo-1,3-diketones by Rh2(OAc)4-catalyzed isocyanide insertion–hydrolysis. Org Biomol Chem 2017; 15:7127-7130. [DOI: 10.1039/c7ob01801k] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A novel and efficient strategy for the synthesis of 2-hydroxy-6-oxocyclohex-1-enecarboxamides through a Rh2(OAc)4-catalyzed direct carboxamidation of cyclic 2-diazo-1,3-diketones has been developed.
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Affiliation(s)
- Xinwei He
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Zhiyu Yu
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Youpeng Zuo
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Cheng Yang
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
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46
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Xiong Z, Liang D, Luo S. Palladium-catalyzed β-selective C(sp2)–H carboxamidation of enamides by isocyanide insertion: synthesis of N-acyl enamine amides. Org Chem Front 2017. [DOI: 10.1039/c7qo00049a] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient synthesis of N-acyl enamine amides via palladium-catalyzed alkene C–H activation and isocyanide insertion has been developed.
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Affiliation(s)
- Zhuang Xiong
- State Key Laboratory of Respiratory Disease
- Guangzhou Institutes of Biomedicine and Health
- Chinese Academy of Sciences
- Guangzhou 510530
- China
| | - Dongdong Liang
- Department of Pharmaceutical Sciences
- University of Maryland School of Pharmacy
- Baltimore
- USA
| | - Shuang Luo
- State Key Laboratory of Respiratory Disease
- Guangzhou Institutes of Biomedicine and Health
- Chinese Academy of Sciences
- Guangzhou 510530
- China
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47
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Liu HF, Zhu TH, Xu P, Wang SY, Ji SJ. I2/CHP mediated [1 + 1 + 1 + 1] cyclization of aromatic isocyanides with amines to construct 1,3-diazetidine-2,4-diimine derivatives. Org Biomol Chem 2017; 15:8738-8742. [DOI: 10.1039/c7ob02255g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An I2/CHP (cumene hydroperoxide) mediated [1 + 1 + 1 + 1] cyclization of aromatic isocyanides with readily accessible amines via the formation of 4 new C–N bonds has been developed to construct unsymmetric 1,3-diazetidine-2,4-diimine derivatives under mild conditions.
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Affiliation(s)
- Hai-Feng Liu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Tong-Hao Zhu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Pei Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Shun-Yi Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology
- Soochow University
- Suzhou
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48
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Dwivedi V, Rajesh M, Kumar R, Kant R, Sridhar Reddy M. A stereoselective thiocyanate conjugate addition to electron deficient alkynes and concomitant cyclization to N,S-heterocycles. Chem Commun (Camb) 2017; 53:11060-11063. [DOI: 10.1039/c7cc06081e] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A regio- and stereoselective thiocyanate addition to ynones and the concomitant cyclizations of resultant vinyl thiocyanate to access thio-aza heterocycles are achieved using KSCN in AcOH without the need of any metal catalyst.
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Affiliation(s)
- Vikas Dwivedi
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Manda Rajesh
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Ravi Kumar
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
| | - Ruchir Kant
- MSB Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Maddi Sridhar Reddy
- Medicinal & Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
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49
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Abstract
This review demonstrates the metal-catalyzed incorporation of isocyanides into C–H functionalization to establish complicated reactions utilizing synergistic effects.
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Affiliation(s)
- Bingrui Song
- Department of Chemistry
- Innovative Drug Research Center
- Shanghai University
- Shanghai 200444
- China
| | - Bin Xu
- Department of Chemistry
- Innovative Drug Research Center
- Shanghai University
- Shanghai 200444
- China
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50
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Mao XF, Zhu XP, Li DY, Jiang LL, Liu PN. Cascade reaction of alkynols with 1-(2-aminophenyl)prop-2-ynols to form a fused 5,5,6-tricyclic system: formation of four bonds in a single reaction. Chem Commun (Camb) 2017; 53:8608-8611. [DOI: 10.1039/c7cc04126h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A novel cascade reaction of internal alkynols with 1-(2-aminophenyl)prop-2-ynols has been developed to form a new N,O-containing fused 5,5,6-tricyclic skeleton.
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Affiliation(s)
- Xiao-Feng Mao
- Shanghai Key Laboratory of Functional Materials Chemistry
- Key Laboratory for Advanced Materials and School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Xiao-Ping Zhu
- Shanghai Key Laboratory of Functional Materials Chemistry
- Key Laboratory for Advanced Materials and School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Deng-Yuan Li
- Shanghai Key Laboratory of Functional Materials Chemistry
- Key Laboratory for Advanced Materials and School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Liang-Liang Jiang
- Shanghai Key Laboratory of Functional Materials Chemistry
- Key Laboratory for Advanced Materials and School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Pei-Nian Liu
- Shanghai Key Laboratory of Functional Materials Chemistry
- Key Laboratory for Advanced Materials and School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai
- China
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