1
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Gao M, Lu S, Xu B. C-H functionalization enabled by multiple isocyanides. Chem Soc Rev 2024. [PMID: 39228343 DOI: 10.1039/d4cs00028e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/05/2024]
Abstract
Past decades have witnessed significant advance of isocyanides as a class of versatile organic synthons as well as their broad applications in multi-component reactions (MCRs) and other tandem reactions. Reactions involving multiple isocyanides allow the construction of molecules with further diversification and complexity, while C-H functionalization emphasizes the advantages of high atom economy, broad substrate availability and great synthetic efficiency. This promising synergistic strategy of C-H functionalization involving multiple isocyanides provides a variety of valuable synthetic methods for organic chemists' toolbox and offers considerable potential in pharmaceutical chemistry and materials science as well. The present review outlines in detail various reaction types of C-H functionalization enabled by multiple isocyanides, and the relevant mechanistic rationale is discussed.
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Affiliation(s)
- Mingchun Gao
- Department of Chemistry, Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), Shanghai Engineering Research Center of Organ Repair, Innovative Drug Research Center, School of Medicine, Shanghai University, Shanghai 200444, China.
| | - Shaohang Lu
- Department of Chemistry, Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), Shanghai Engineering Research Center of Organ Repair, Innovative Drug Research Center, School of Medicine, Shanghai University, Shanghai 200444, China.
| | - Bin Xu
- Department of Chemistry, Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), Shanghai Engineering Research Center of Organ Repair, Innovative Drug Research Center, School of Medicine, Shanghai University, Shanghai 200444, China.
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
- Joint International Research Laboratory of Biomaterials and Biotechnology in Organ Repair (Ministry of Education), Shanghai University, Shanghai 200444, China
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2
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Chen J, Zhang L, Wang Z, Liu L, Tu L, Zhang Y, Chen Y, Han W. De Novo Synthesis of α-Ketoamides via Pd/TBD Synergistic Catalysis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2404266. [PMID: 38986026 PMCID: PMC11425860 DOI: 10.1002/advs.202404266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 06/17/2024] [Indexed: 07/12/2024]
Abstract
Precisely controlling the product selectivity of a reaction is an important objective in organic synthesis. α-Ketoamides are vital intermediates in chemical transformations and privileged motifs in numerous drugs, natural products, and biologically active molecules. The selective synthesis of α-ketoamides from feedstock chemicals in a safe and operationally simple manner under mild conditions is a long-standing catalysis challenge. Herein, an unprecedented TBD-switched Pd-catalyzed double isocyanide insertion reaction for assembling ketoamides in aqueous DMSO from (hetero)aryl halides and pseudohalides under mild conditions is reported. The effectiveness and utility of this protocol are demonstrated by its diverse substrate scope (93 examples), the ability to late-stage modify pharmaceuticals, scalability to large-scale synthesis, and the synthesis of pharmaceutically active molecules. Mechanistic studies indicate that TBD is a key ligand that modulates the Pd-catalyzed double isocyanide insertion process, thereby selectively providing the desired α-ketoamides in a unique manner. In addition, the imidoylpalladium(II) complex and α-ketoimine amide are successfully isolated and determined by X-ray analysis, confirming that they are probable intermediates in the catalytic pathway.
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Affiliation(s)
- Jia‐He Chen
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou ProvinceGeneric Drug Research Center of Guizhou ProvinceGreen Pharmaceuticals Engineering Research Center of Guizhou ProvinceSchool of Pharmacy, Zunyi Medical UniversityNo. 6 West Xuefu Rd.Zunyi563006China
| | - Li‐Ren Zhang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou ProvinceGeneric Drug Research Center of Guizhou ProvinceGreen Pharmaceuticals Engineering Research Center of Guizhou ProvinceSchool of Pharmacy, Zunyi Medical UniversityNo. 6 West Xuefu Rd.Zunyi563006China
| | - Zhang‐Yang Wang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou ProvinceGeneric Drug Research Center of Guizhou ProvinceGreen Pharmaceuticals Engineering Research Center of Guizhou ProvinceSchool of Pharmacy, Zunyi Medical UniversityNo. 6 West Xuefu Rd.Zunyi563006China
| | - Lu‐Jie Liu
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou ProvinceGeneric Drug Research Center of Guizhou ProvinceGreen Pharmaceuticals Engineering Research Center of Guizhou ProvinceSchool of Pharmacy, Zunyi Medical UniversityNo. 6 West Xuefu Rd.Zunyi563006China
| | - Li‐Ping Tu
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou ProvinceGeneric Drug Research Center of Guizhou ProvinceGreen Pharmaceuticals Engineering Research Center of Guizhou ProvinceSchool of Pharmacy, Zunyi Medical UniversityNo. 6 West Xuefu Rd.Zunyi563006China
| | - Yun Zhang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou ProvinceGeneric Drug Research Center of Guizhou ProvinceGreen Pharmaceuticals Engineering Research Center of Guizhou ProvinceSchool of Pharmacy, Zunyi Medical UniversityNo. 6 West Xuefu Rd.Zunyi563006China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of EducationZunyi Medical UniversityNo. 6 West Xuefu Rd.Zunyi563006China
| | - Yong‐Zheng Chen
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou ProvinceGeneric Drug Research Center of Guizhou ProvinceGreen Pharmaceuticals Engineering Research Center of Guizhou ProvinceSchool of Pharmacy, Zunyi Medical UniversityNo. 6 West Xuefu Rd.Zunyi563006China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of EducationZunyi Medical UniversityNo. 6 West Xuefu Rd.Zunyi563006China
| | - Wen‐Yong Han
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou ProvinceGeneric Drug Research Center of Guizhou ProvinceGreen Pharmaceuticals Engineering Research Center of Guizhou ProvinceSchool of Pharmacy, Zunyi Medical UniversityNo. 6 West Xuefu Rd.Zunyi563006China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of EducationZunyi Medical UniversityNo. 6 West Xuefu Rd.Zunyi563006China
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3
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Barik P, Behera SS, Nayak LK, Nanda LN, Nanda SK, Patri P. Transition metal catalysed cascade C-C and C-O bond forming events of alkynes. Org Biomol Chem 2024; 22:5052-5086. [PMID: 38856756 DOI: 10.1039/d3ob02044d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
The past few decades have witnessed the emergence of domino reactions as a powerful tool for the multi-functionalization of alkynes for the rapid and smooth construction of complex molecular architectures. In this context, employing transition metal catalysis, vicinal/geminal cascade functionalization of alkynes involving C-C and C-O bond-formation reactions, has become a preferred strategy for the synthesis of oxygenated motifs. Despite this significant progress, reviews documenting such strategies are either metal/functional group-centric or target-oriented, thus hampering further developments. Therefore, in this review, different conceptual approaches based on C-C and C-O bond-forming events of alkynes such as carboxygenation (C-C and CO bond formation), carboalkoxylation (C-C and C-OR bond formation), and carboacetoxylation (C-C and C-OAc bond formations) are discussed, and examples from the literature from the last two decades are presented. Further, we have presented detailed insights into the mechanism of different transformations.
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Affiliation(s)
- Padmanava Barik
- PG Department of Chemistry, Bhadrak Autonomous College, Bhadrak, Odisha, 756100, India.
| | | | - Laxmi Kanta Nayak
- PG Department of Chemistry, Bhadrak Autonomous College, Bhadrak, Odisha, 756100, India.
| | | | - Santosh Kumar Nanda
- PG Department of Chemistry, Bhadrak Autonomous College, Bhadrak, Odisha, 756100, India.
| | - Padmanava Patri
- PG Department of Chemistry, Bhadrak Autonomous College, Bhadrak, Odisha, 756100, India.
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Divyavani C, Padmaja P, Reddy PN. Isocyanide-based Multicomponent Reactions (IMCRs) in Water or Aqueous Biphasic Systems. Curr Org Synth 2024; 21:140-165. [PMID: 37005400 DOI: 10.2174/1570179420666230330170845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 01/25/2023] [Accepted: 02/10/2023] [Indexed: 04/04/2023]
Abstract
BACKGROUND Isocyanide is an intriguing one-carbon synthon that is frequently employed in a variety of carbon-carbon and carbon-heteroatom bond-forming reactions. Isocyanide-based multicomponent reactions (IMCRs) are effective synthetic tools in organic synthesis for the preparation of complex heterocyclic molecules. The IMCRs in water have become an attractive research direction, enabling simultaneous growth of both IMCRs and green solvents towards ideal organic synthesis. OBJECTIVE The goal of this review is to provide a general overview of IMCRs in water or biphasic aqueous systems for accessing various organic molecules, as well as an examination of their benefits and mechanistic insights. CONCLUSION High atom economies, mild reaction conditions, high yields, and catalyst-free processes are crucial features of these IMCRs in water or biphasic aqueous systems.
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Affiliation(s)
- Chitteti Divyavani
- Department of Chemistry, Sri Padmavathi Women's Degree & PG College, Tirupati, Andhra Pradesh, India
| | - Pannala Padmaja
- Centre for Semio Chemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana, India
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5
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Narasimha Rao P, Sudhakar Reddy B, Sudhakar K, Naveen Kumar K, Syam Kumar U. A concise and metal catalyst free synthesis of 2,3-disubstituted dihydrobenzofuran-3-amines. Tetrahedron Lett 2023. [DOI: 10.1016/j.tetlet.2023.154431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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6
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Fan H, Li A, Li J, Du Z, Wang L, Zhou X, He P, Ren Z. Construction of Tetrazole Derivatives via Sequential Ugi‐N
3
/Pd‐Catalyzed Isocyanide Insertion Reactions. ChemistrySelect 2023. [DOI: 10.1002/slct.202204294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Hao‐Jie Fan
- College of Chemical Engineering Hubei University of Arts and Science Xiangyang Hubei Province 441053 P. R. of China
| | - A‐Ting Li
- College of Chemical Engineering Hubei University of Arts and Science Xiangyang Hubei Province 441053 P. R. of China
| | - Jun Li
- College of Chemical Engineering Hubei University of Arts and Science Xiangyang Hubei Province 441053 P. R. of China
| | - Zi‐Qi Du
- College of Chemical Engineering Hubei University of Arts and Science Xiangyang Hubei Province 441053 P. R. of China
| | - Long Wang
- College of Materials and Chemical Engineering China Three Gorges University Yichang Hubei 443002 P. R. of China
- Hubei Three Gorges Laboratory Yichang Hubei 443007 P. R. of China
| | - Xian‐Min Zhou
- Hubei Institute of Aerospace Chemical Technology Xiangyang Hubei 441053 P. R. of China
| | - Ping He
- College of Chemical Engineering Hubei University of Arts and Science Xiangyang Hubei Province 441053 P. R. of China
| | - Zhi‐Lin Ren
- College of Chemical Engineering Hubei University of Arts and Science Xiangyang Hubei Province 441053 P. R. of China
- College of Materials and Chemical Engineering China Three Gorges University Yichang Hubei 443002 P. R. of China
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7
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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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8
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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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Ren ZL, Qiu JY, Yuan LL, Yuan YF, Cai S, Li J, Kong C, He P, Wang L. Divergent Conversion of Double Isocyanides with Alkenyl Bromide to Polysubstituted Pyrroles and 4-Imino-4,5-dihydropyrrolo[3,4- b]pyrrol-6(1 H)-one Derivatives by Pd-Catalyzed Tandem Cyclization Reactions. Org Lett 2022; 24:859-863. [PMID: 35019658 DOI: 10.1021/acs.orglett.1c04146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Herein a novel and concise approach to pyrrole skeletons via Pd-catalyzed tandem cyclization reactions is investigated. The substrates for the transformation could be readily prepared by phosphoric acid-catalyzed Ugi reactions with available starting materials. In this strategy, two isocyanides participate in sequential isocyanide insertion reactions, and the chemoselectivity of the products is regulated by the steric hindrance of the isocyanide. A plausible mechanism for the formation of the corresponding adducts is proposed.
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Affiliation(s)
- Zhi-Lin Ren
- College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei 441053, P. R. China
| | - Ji-Ying Qiu
- College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei 441053, P. R. China
| | - Ling-Ling Yuan
- College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei 441053, P. R. China
| | - Yue-Fei Yuan
- College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei 441053, P. R. China
| | - Shuang Cai
- College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei 441053, P. R. China
| | - Jun Li
- College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei 441053, P. R. China
| | - Chi Kong
- College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei 441053, P. R. China
| | - Ping He
- College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei 441053, P. R. China
| | - Long Wang
- College of Materials and Chemical Engineering, China Three Gorges University, Yichang, Hubei 443002, P. R. China
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10
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A Facile Synthesis of Indole Derivatives by a Palladium‐Catalyzed Process Initiated from Ugi Adducts and their Antifungal Activities. ChemistrySelect 2021. [DOI: 10.1002/slct.202104070] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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11
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Kodama S, Yamamoto Y, Kobiki Y, Matsubara H, Tran CC, Kawaguchi SI, Nomoto A, Ogawa A. Transition-Metal-Catalyzed Diarylation of Isocyanides with Triarylbismuthines for the Selective Synthesis of Imine Derivatives. MATERIALS 2021; 14:ma14154271. [PMID: 34361465 PMCID: PMC8348920 DOI: 10.3390/ma14154271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 07/22/2021] [Accepted: 07/28/2021] [Indexed: 11/16/2022]
Abstract
The transition-metal-catalyzed diarylation of isocyanides with triarylbismuthines was investigated in detail, and rhodium catalysts such as [RhCl(nbd)]2 were found to selectively afford N-alkyl diaryl ketimines. On the other hand, palladium-catalyzed diarylation proceeded with the incorporation of two molecules of isocyanide, preferentially yielding N,N’-dialkyl or N,N’-diaryl α-diimines. In addition, a cascade synthesis of 2,3-diarylquinoxalines starting from the palladium-catalyzed diarylation of isocyanides with triarylbismuthines was successfully achieved.
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Affiliation(s)
- Shintaro Kodama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan; (S.K.); (Y.Y.); (Y.K.); (H.M.); (C.C.T.); (A.N.)
| | - Yuki Yamamoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan; (S.K.); (Y.Y.); (Y.K.); (H.M.); (C.C.T.); (A.N.)
| | - Yohsuke Kobiki
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan; (S.K.); (Y.Y.); (Y.K.); (H.M.); (C.C.T.); (A.N.)
| | - Hitomi Matsubara
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan; (S.K.); (Y.Y.); (Y.K.); (H.M.); (C.C.T.); (A.N.)
| | - Cong Chi Tran
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan; (S.K.); (Y.Y.); (Y.K.); (H.M.); (C.C.T.); (A.N.)
| | - Shin-ichi Kawaguchi
- Center for Education and Research in Agricultural Innovation, Faculty of Agriculture, Saga University, 152-1 Shonan-cho, Karatsu, Saga 847-0021, Japan
- Correspondence: (S.-i.K.); (A.O.)
| | - Akihiro Nomoto
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan; (S.K.); (Y.Y.); (Y.K.); (H.M.); (C.C.T.); (A.N.)
| | - Akiya Ogawa
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan; (S.K.); (Y.Y.); (Y.K.); (H.M.); (C.C.T.); (A.N.)
- Correspondence: (S.-i.K.); (A.O.)
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12
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Mondal S, Ballav T, Biswas K, Ghosh S, Ganesh V. Exploiting the Versatility of Palladium Catalysis: A Modern Toolbox for Cascade Reactions. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100312] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Sourav Mondal
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721 302 West Bengal India
| | - Tamal Ballav
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721 302 West Bengal India
| | - Krishna Biswas
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721 302 West Bengal India
| | - Suman Ghosh
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721 302 West Bengal India
| | - Venkataraman Ganesh
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721 302 West Bengal India
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13
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Wen LR, Wang NN, Du WB, Ma Q, Zhang LB, Li M. Nickel-promoted oxidative domino C sp3-H/N-H bond double-isocyanide insertion reaction to construct pyrrolin-2-ones. Org Biomol Chem 2021; 19:2895-2900. [PMID: 33725062 DOI: 10.1039/d1ob00139f] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The first nickel-catalyzed oxidative domino Csp3-H/N-H double isocyanide insertion reaction of acetamides with isocyanides has been developed for the synthesis of pyrrolin-2-one derivatives. A wide range of acetamides bearing various functional groups are compatible with this reaction system by utilizing Ni(acac)2 as a catalyst. In this transformation, isocyanide could serve as a C1 connector and insert into the inactive Csp3-H bond, representing an effective way to construct heterocycles.
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Affiliation(s)
- Li-Rong Wen
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China.
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14
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Weng Y, Qu J, Chen Y. Palladium-Catalyzed Allylic Carbonylative Negishi Cross-Coupling Reactions with Sterically Bulky Aromatic Isocyanides. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202101021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Shan Y, Su L, Chen D, Yang M, Xie W, Qiu G. Palladium-catalyzed concerted [4 + 1] cyclization of prop-2-yn-1-ones and isocyanides. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.04.041] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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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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Liu Q, Mei Y, Wang L, Ma Y, Li P. Visible‐Light‐Induced Radical Cascade Cyclizations of 1,7‐Enynes with Sulfinic Acids: Direct Access to Sulfonated Chromanes and Sulfonated Tetrahydroquinolines under Metal‐Free Conditions. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000846] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Qi Liu
- Advanced Research Institute and Department of Chemistry Taizhou University Taizhou Zhejiang 318000 People's Republic of China
- Department of Chemistry Huaibei Normal University Huaibei Anhui 235000 People's Republic of China
| | - Yousheng Mei
- Department of Chemistry Huaibei Normal University Huaibei Anhui 235000 People's Republic of China
| | - Lei Wang
- Advanced Research Institute and Department of Chemistry Taizhou University Taizhou Zhejiang 318000 People's Republic of China
- Department of Chemistry Huaibei Normal University Huaibei Anhui 235000 People's Republic of China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Shanghai 200032 People's Republic of China
| | - Yongmin Ma
- Advanced Research Institute and Department of Chemistry Taizhou University Taizhou Zhejiang 318000 People's Republic of China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Shanghai 200032 People's Republic of China
| | - Pinhua Li
- Department of Chemistry Huaibei Normal University Huaibei Anhui 235000 People's Republic of China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Shanghai 200032 People's Republic of China
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18
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Xi ZW, He Y, Liu LQ, Wang YC. Palladium-catalyzed double coupling reaction of terminal alkynes with isocyanides: a direct approach to symmetrical N-aryl dialkynylimines. Org Biomol Chem 2020; 18:8089-8093. [PMID: 33026017 DOI: 10.1039/d0ob01604g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A novel and efficient one-pot synthesis of symmetrical N-aryl dialkynylimines via palladium-catalyzed and copper-promoted isocyanide insertion, cross-coupling and elimination has been developed. This method features readily available starting materials, mild reaction conditions and high atom efficiency as well as simple one-pot operation, which make this strategy highly attractive. Moreover, 2-iodobenzo[f]quinoline derivatives can be obtained via electrophilic cyclization of N-aryl dialkynylimines.
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Affiliation(s)
- Zhi-Wei Xi
- National Demonstration Center for Experimental Chemistry Education, Hunan Engineering Laboratory for Analyse and Drugs Development of Ethnomedicine in Wuling Mountains, Jishou University, Jishou 416000, P. R. China.
| | - Yan He
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Laboratory for Advanced Materials, State Key Laboratory of Chemical Engineering and School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Li-Qiu Liu
- National Demonstration Center for Experimental Chemistry Education, Hunan Engineering Laboratory for Analyse and Drugs Development of Ethnomedicine in Wuling Mountains, Jishou University, Jishou 416000, P. R. China.
| | - Ying-Chun Wang
- National Demonstration Center for Experimental Chemistry Education, Hunan Engineering Laboratory for Analyse and Drugs Development of Ethnomedicine in Wuling Mountains, Jishou University, Jishou 416000, P. R. China.
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19
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Mangaonkar SR, Shetgaonkar SE, Vernekar AA, Singh FV. Ultrasonic‐Assisted Hypervalent Iodine‐Catalyzed Cyclization of (
E
)‐2‐Hydroxystilbenes to Benzofurans Using Iodobenzene as Pre‐catalyst. ChemistrySelect 2020. [DOI: 10.1002/slct.202002860] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Saeesh R. Mangaonkar
- Chemistry Division School of Advanced Sciences (SAS), VIT Chennai Vandalur-Kelambakkam Road Chennai 600 127, Tamil Nadu India
| | - Samata E. Shetgaonkar
- Chemistry Division School of Advanced Sciences (SAS), VIT Chennai Vandalur-Kelambakkam Road Chennai 600 127, Tamil Nadu India
| | - Amit A. Vernekar
- Inorganic and Physical Chemistry Laboratory CSIR-Central Leather Research Institute (CLRI) Adyar Chennai 600 020, Tamil Nadu India
- Academy of Scientific and Innovative Research (AcSIR) New Delhi India
| | - Fateh V. Singh
- Chemistry Division School of Advanced Sciences (SAS), VIT Chennai Vandalur-Kelambakkam Road Chennai 600 127, Tamil Nadu India
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20
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Wang C, Wu L, Xu W, He F, Qu J, Chen Y. Palladium-Catalyzed Secondary Benzylic Imidoylative Reactions. Org Lett 2020; 22:6954-6959. [PMID: 32808530 DOI: 10.1021/acs.orglett.0c02515] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Reported herein is a palladium-catalyzed secondary benzylic imidoylative Negishi reaction leveraging the sterically bulky aromatic isocyanides as the imine source. This method allows the facile access of alkyl-, (hetero)aryl-, and alkynylzinc reagents to afford various α-substituted phenylacetone products under mild acidic hydrolysis, which are ubiquitous motifs in many pharmaceuticals and biologically active compounds. The diastereoselective reduction of imine can be accomplished to provide the expedient conversion of secondary benzylic halide into α-substituted phenethylamine derivatives with high atom economy.
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Affiliation(s)
- Chenglong Wang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Licheng Wu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Wentao Xu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Feng He
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Jingping Qu
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Yifeng Chen
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
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21
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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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22
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Ren ZL, Cai S, Liu YY, Xie YQ, Yuan D, Lei M, He P, Wang L. C(sp2)–H Functionalization of Imidazole at the C2- and C4-Position via Palladium-Catalyzed Isocyanide Insertion Leading to Indeno[1,2-d]imidazole and Imidazo[1,2-a]indole Derivatives. J Org Chem 2020; 85:11014-11024. [DOI: 10.1021/acs.joc.0c01454] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Zhi-Lin Ren
- College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei Province, 441053, P. R. of China
| | - Shuang Cai
- College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei Province, 441053, P. R. of China
| | - Ying-Ying Liu
- College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei Province, 441053, P. R. of China
| | - Yin-Qing Xie
- College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei Province, 441053, P. R. of China
| | - Ding Yuan
- School of Biology and Chemical Engineering, Panzhihua University, Panzhihua, Sichuan Province, 617000, P. R. of China
| | - Min Lei
- College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei Province, 441053, P. R. of China
| | - Ping He
- College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei Province, 441053, P. R. of China
| | - Long Wang
- Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, College of Materials and Chemical Engineering, China Three Gorges University, Yichang, Hubei Province, 443002, P. R. of China
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23
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Duc DX. Recent Achievement in the Synthesis of Benzo[b]furans. Curr Org Synth 2020; 17:498-517. [PMID: 32586253 DOI: 10.2174/1570179417666200625212639] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 05/21/2020] [Accepted: 05/28/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Benzo[b]furan derivatives are oxygen-containing heterocyclic compounds consisting of fused benzene and furan rings and are present in a large number of natural and non-natural compounds. This class of compounds has a wide spectrum of biological activities, such as antiarrhythmic, anticancer, inflammatory, antioxidant, antimicrobial, and antiviral. Furthermore, benzo[b]furan derivatives have also been applied in various areas, such as organic electroluminescence device materials and organic dyes, photosensitizing material, organic synthesis as building blocks or intermediates. Because of a broad range of applicability, the synthesis of benzo[b]furan derivative has drawn great attention of chemists and many studies on the synthesis of this class of compounds have been reported recently. This review will give an overview of benzo[b]furan preparation based on studies dating back to the year 2012. OBJECTIVE In this review, recent development in the synthesis of benzo[b]furans are discussed. There has been increasingly new methodologies for the construction of benzo[b]furans skeleton to improve efficiency or develop environmentally friendly procedures. In some studies, reaction mechanisms were also outlined. CONCLUSION Many methods for the synthesis of benzo[b]furans have been reported recently. Most of them involve cyclization or cycloisomerization processes. Unquestionably, more imaginative strategies for the construction of benzo[b]furan skeleton will be established in the near future. Application of known methods to natural products or drug synthesis, on industrial scale for the synthesis of economically or medicinally important benzo[ b]furans will probably be paid attention to.
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Affiliation(s)
- Dau Xuan Duc
- Department of Chemistry, Vinh University, Vinh City, Vietnam
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24
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Chen D, Yang M, Li J, Cui P, Su L, Shan Y, You J, Rojsitthisak P, Liu JB, Qiu G. Palladium-Catalyzed Cycloaddition of Alkynylimines, Double Isocyanides, and H 2O/KOAc. J Org Chem 2020; 85:6441-6449. [PMID: 32321251 DOI: 10.1021/acs.joc.0c00323] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
In this work, a palladium-catalyzed cyclization of alkynylimines and double isocyanides is described. This facile procedure is efficient for synthesizing various 4-amidyl-2-aminopyrroles. Mechanism investigation indicates that a four-membered ring-fused pyrrole species is a key intermediate and the reaction involves [4 + 1] cycloaddition, protonation, nucleophilic addition, 1,4-addition of isocyanide, and rearomatization. Interestingly, the linear dipyrrole derivative is found to be an appropriate fluoride ion probe with a remarkable emission change, which could serve as a potential candidate for optoelectronic conjugated materials.
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Affiliation(s)
- Dianpeng Chen
- Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China
| | - Min Yang
- Department of Forensic Science, Gannan Medical University, Ganzhou, Jiangxi 341000, China
| | - Jianming Li
- Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China
| | - Peiying Cui
- Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China
| | - Lei Su
- Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China
| | - Yingying Shan
- Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China
| | - Jinmao You
- Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China
| | - Pornchai Rojsitthisak
- Department of Food and Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Chulalongkorn University, 254 Phayathai Road, Patumwan, Bangkok 10330, Thailand
| | - Jin-Biao Liu
- School of Metallurgical and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Guanyinsheng Qiu
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, China
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25
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Zhang J, Wang JY, Huang MH, Hao WJ, Tu XC, Tu SJ, Jiang B. Ligand-Free Pd-Catalyzed Synthesis of 3-Allylbenzofurans by Merging Decarboxylative Allylation and Nucleophilic Cyclization. J Org Chem 2020; 85:7036-7044. [DOI: 10.1021/acs.joc.0c00375] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jie Zhang
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Jia-Yin Wang
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Min-Hua Huang
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Wen-Juan Hao
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Xing-Chao Tu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Bo Jiang
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
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26
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Song L, Su Q, Lin X, Du Z, Xu H, Ouyang MA, Yao H, Tong R. Cascade Claisen and Meinwald Rearrangement for One-Pot Divergent Synthesis of Benzofurans and 2H-Chromenes. Org Lett 2020; 22:3004-3009. [DOI: 10.1021/acs.orglett.0c00770] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Liyan Song
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Qian Su
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Xi Lin
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Zhihui Du
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Huiyou Xu
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Ming-An Ouyang
- Key Laboratory of Biopesticide and Chemical Biology (Ministry of Education), College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Hongliang Yao
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Drug Synthesis and Evaluation Center, Guangdong Institute of Applied Biological Resources, Guangzhou, Guangdong 510260, China
| | - Rongbiao Tong
- Department of Chemistry, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China
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27
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Tao LY, Wei Y, Shi M. Dimerization–cyclization reactions of isocyanoaryl-tethered alkylidenecyclobutanes via a triplet biradical mediated process. Org Chem Front 2020. [DOI: 10.1039/d0qo00878h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A triplet biradical mediated dimerization–cyclization reaction of isocyanoaryl-tethered alkylidenecyclobutanes to construct macrocyclic skeletons including dihydroquinoline and quinoline units has been reported.
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Affiliation(s)
- Le-Yi Tao
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
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28
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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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29
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Ren ZL, Lu WT, Cai S, Xiao MM, Yuan YF, Ping He, Ding MW. Isocyano(triphenylphosphoranylidene)acetates: Key to the One-Pot Synthesis of Oxazolo[4,5-c]quinoline Derivatives via a Sequential Ugi/Wittig/aza-Wittig Cyclization Process. J Org Chem 2019; 84:14911-14918. [DOI: 10.1021/acs.joc.9b02220] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Zhi-Lin Ren
- College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei Province 441053, P.R. China
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Central China Normal University, Wuhan 430079, P.R. China
| | - Wen-Ting Lu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Central China Normal University, Wuhan 430079, P.R. China
| | - Shuang Cai
- College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei Province 441053, P.R. China
| | - Mi-Mi Xiao
- College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei Province 441053, P.R. China
| | - Yue-Fei Yuan
- College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei Province 441053, P.R. China
| | - Ping He
- College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei Province 441053, P.R. China
| | - Ming-Wu Ding
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Central China Normal University, Wuhan 430079, P.R. China
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30
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Li M, Fang S, Zheng J, Jiang H, Wu W. Direct Assembly of Polysubstituted Propiolamidinates via Palladium-Catalyzed Multicomponent Reaction of Isocyanides. Org Lett 2019; 21:8439-8443. [DOI: 10.1021/acs.orglett.9b03201] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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 510640, China
| | - Songjia Fang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jia Zheng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Wanqing Wu
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
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31
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Peng X, Qin F, Xu M, Zhu S, Pan Y, Tang H, Meng X, Wang H. Synthesis of imidazo[1,2-c]thiazoles through Pd-catalyzed bicyclization of tert-butyl isonitrile with thioamides. Org Biomol Chem 2019; 17:8403-8407. [PMID: 31482915 DOI: 10.1039/c9ob01664c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Building new biological molecules is challenging. Herein, imidazo[1,2-c]thiazoles were synthesized as a new class of heterobicyclic analogs through Pd-catalyzed cascade bicyclization from isonitriles with thioamides. The bicyclic scaffolds were constructed by inserting three molecules of isonitrile into two molecules of thioamide and then cyclizing them in a one-pot procedure. In vitro antitumor studies of these new compounds were conducted by using the MTT assay, and compound 3c showed excellent inhibitory effects against HepG2 at 7.06 ± 0.68 μM.
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Affiliation(s)
- Xiangjun Peng
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China and School of Pharmaceutical Science, Gannan Medical University, Ganzhou, Jiangxi 341000, P. R. China.
| | - Feng Qin
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Mengyue Xu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Shaojie Zhu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Yingming Pan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Haitao Tang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Xiujin Meng
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Hengshan Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China
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32
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Tran CC, Kawaguchi SI, Kobiki Y, Matsubara H, Tran DP, Kodama S, Nomoto A, Ogawa A. Palladium-Catalyzed Diarylation of Isocyanides with Tetraarylleads for the Selective Synthesis of Imines and α-Diimines. J Org Chem 2019; 84:11741-11751. [PMID: 31432680 DOI: 10.1021/acs.joc.9b01639] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Using tetraaryllead compounds (PbAr4) as arylating reagents, isocyanides undergo selective diarylation in the presence of palladium catalysts such as Pd(OAc)2 or Pd(PPh3)4 to afford imines and/or α-diimines based on the isocyanide employed. With aliphatic isocyanides, imines are obtained preferentially, whereas α-diimines are formed in the case of electron-rich aromatic isocyanides. The differences in imine/α-diimine selectivity can be attributed to the stability of imidoylpalladium intermediates formed in this catalytic reaction. Compared with other arylating reagents, tetraaryllead compounds are excellent candidates for use in the selective transformations to imines and/or α-diimines, especially in terms of inhibiting the oligomerization of isocyanides, which results in a lower product selectivity in many transition-metal-catalyzed reactions of isocyanides.
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Affiliation(s)
- Cong Chi Tran
- Department of Applied Chemistry, Graduate School of Engineering , Osaka Prefecture University , 1-1 Gakuen-cho , Nakaku, Sakai , Osaka 599-8531 , Japan
| | - Shin-Ichi Kawaguchi
- Center for Education and Research in Agricultural Innovation, Faculty of Agriculture , Saga University , 152-1 Shonan-cho Karatsu , Saga 847-0021 , Japan
| | - Yohsuke Kobiki
- Department of Applied Chemistry, Graduate School of Engineering , Osaka Prefecture University , 1-1 Gakuen-cho , Nakaku, Sakai , Osaka 599-8531 , Japan
| | - Hitomi Matsubara
- Department of Applied Chemistry, Graduate School of Engineering , Osaka Prefecture University , 1-1 Gakuen-cho , Nakaku, Sakai , Osaka 599-8531 , Japan
| | - Dat Phuc Tran
- Department of Applied Chemistry, Graduate School of Engineering , Osaka Prefecture University , 1-1 Gakuen-cho , Nakaku, Sakai , Osaka 599-8531 , Japan
| | - Shintaro Kodama
- Department of Applied Chemistry, Graduate School of Engineering , Osaka Prefecture University , 1-1 Gakuen-cho , Nakaku, Sakai , Osaka 599-8531 , Japan
| | - Akihiro Nomoto
- Department of Applied Chemistry, Graduate School of Engineering , Osaka Prefecture University , 1-1 Gakuen-cho , Nakaku, Sakai , Osaka 599-8531 , Japan
| | - Akiya Ogawa
- Department of Applied Chemistry, Graduate School of Engineering , Osaka Prefecture University , 1-1 Gakuen-cho , Nakaku, Sakai , Osaka 599-8531 , Japan
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33
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Chen D, Shan Y, Li J, You J, Sun X, Qiu G. External Reductant-Free Palladium-Catalyzed Reductive Insertion of Isocyanide: Synthesis of Polysubstituted Pyrroles and Its Applications as a Cysteine Probe. Org Lett 2019; 21:4044-4048. [DOI: 10.1021/acs.orglett.9b01220] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Dianpeng Chen
- Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China
| | - Yingying Shan
- Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China
| | - Jianming Li
- Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China
| | - Jinmao You
- Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China
| | - Xuejun Sun
- Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, China
| | - Guanyinsheng Qiu
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, China
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Hunan 411201, China
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34
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Dechert-Schmitt AM, Garnsey MR, Wisniewska HM, Murray JI, Lee T, Kung DW, Sach N, Blackmond DG. Highly Modular Synthesis of 1,2-Diketones via Multicomponent Coupling Reactions of Isocyanides as CO Equivalents. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00581] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
| | - Michelle R. Garnsey
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
| | - Hanna M. Wisniewska
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
| | - James I. Murray
- Department of Chemistry, Scripps Research, La Jolla, California 92037, United States
| | - Taegyo Lee
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
| | - Daniel W. Kung
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
| | - Neal Sach
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
| | - Donna G. Blackmond
- Department of Chemistry, Scripps Research, La Jolla, California 92037, United States
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35
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Yuan H, Liu Z, Shen Y, Zhao H, Li C, Jia X, Li J. Iron‐Catalyzed Oxidative Coupling Reaction of Isocyanides and Simple Alkanes towards Amide Synthesis. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801619] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Hongdong Yuan
- Department of Chemistry, Center for Supramolecular Chemistry and CatalysisShanghai University 99 Shangda Road Shanghai 200444 People's Republic of China
| | - Zhiqiang Liu
- Department of Chemistry, Center for Supramolecular Chemistry and CatalysisShanghai University 99 Shangda Road Shanghai 200444 People's Republic of China
| | - Yushu Shen
- Department of Polymer MaterialsShanghai University 99 Shangda Road Shanghai 200444 People's Republic of China
| | - Hongbin Zhao
- Department of Chemistry, Center for Supramolecular Chemistry and CatalysisShanghai University 99 Shangda Road Shanghai 200444 People's Republic of China
| | - Chunju Li
- Department of Chemistry, Center for Supramolecular Chemistry and CatalysisShanghai University 99 Shangda Road Shanghai 200444 People's Republic of China
| | - Xueshun Jia
- Department of Chemistry, Center for Supramolecular Chemistry and CatalysisShanghai University 99 Shangda Road Shanghai 200444 People's Republic of China
- State Key Laboratory of Applied Organic ChemistryLanzhou University Lanzhou 730000 People's Republic of China
| | - Jian Li
- Department of Chemistry, Center for Supramolecular Chemistry and CatalysisShanghai University 99 Shangda Road Shanghai 200444 People's Republic of China
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36
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Zhang D, Man J, Chen Y, Yin L, Zhong J, Zhang QF. Synthesis of poly-functionalized benzofurans via one-pot domino oxidation/[3+2] cyclization reactions of a hydroquinone ester and ynamides. RSC Adv 2019; 9:12567-12571. [PMID: 35515817 PMCID: PMC9063667 DOI: 10.1039/c9ra02144b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 04/15/2019] [Indexed: 02/02/2023] Open
Abstract
Densely substituted amino-functionalized benzofurans were concisely accessed via the first one-pot domino oxidation/[3+2] cyclization of a hydroquinone ester and easily accessible ynamides under mild conditions in a short time. The complex benzofurans were able to be efficiently synthesized all from simple and inexpensive starting materials in two steps. Efficient method for the construction of poly-functionalized benzofurans has been developed via one-pot domino oxidation/[3+2] cyclization reactions.![]()
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Affiliation(s)
- Dongxin Zhang
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
| | - Jingjing Man
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
| | - Yan Chen
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
| | - Lei Yin
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
| | - Junchao Zhong
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
| | - Qian-Feng Zhang
- Institute of Molecular Engineering and Applied Chemistry
- Anhui University of Technology
- Ma'anshan 243002
- China
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37
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Su S, Hu J, Cui Y, Tang C, Chen Y, Li J. A formal (5+1) annulation reaction from heterodimerization of two different isocyanides: stereoselective synthesis of 2H-benzo[b][1,4]oxazin-2-one. Chem Commun (Camb) 2019; 55:12243-12246. [DOI: 10.1039/c9cc06678k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A novel (5+1) annulation reaction of functionalized 2-isocyanophenyloxyacrylate and aromatic, aliphatic isocyanides has been disclosed. This strategy allows for a quick access to many 2H-benzo[b][1,4]oxazin-2-one derivatives.
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Affiliation(s)
- Shikuan Su
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
- Department of Chemistry
| | - Jie Hu
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Yongmei Cui
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Chongrong Tang
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Yali Chen
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
- Department of Chemistry
| | - Jian Li
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- P. R. China
- Department of Chemistry
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38
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Hu J, Fei Y, Zhao H, Wang Z, Li C, Li J. Cascade cyclization and acyl migration of propargylic esters with isocyanides: rapid access to substituted furans. Chem Commun (Camb) 2019; 55:8394-8397. [DOI: 10.1039/c9cc03550h] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A novel rearrangement of ester-activated propargylic acetate with isocyanide has been disclosed. This protocol enables a quick synthesis of polysubstituted furan derivatives.
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Affiliation(s)
- Jie Hu
- Department of Chemistry
- Center for Supramolecular Chemistry and Catalysis
- College of Sciences & Institute for Sustainable Energy
- Shanghai University
- Shanghai 200444
| | - Youwen Fei
- Department of Chemistry
- Center for Supramolecular Chemistry and Catalysis
- College of Sciences & Institute for Sustainable Energy
- Shanghai University
- Shanghai 200444
| | - Hongbin Zhao
- Department of Chemistry
- Center for Supramolecular Chemistry and Catalysis
- College of Sciences & Institute for Sustainable Energy
- Shanghai University
- Shanghai 200444
| | - Zhishuang Wang
- Department of Chemistry
- Center for Supramolecular Chemistry and Catalysis
- College of Sciences & Institute for Sustainable Energy
- Shanghai University
- Shanghai 200444
| | - Chunju Li
- Key Laboratory of Inorganic–Organic Hybrid Functional Material Chemistry
- Ministry of Education
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- College of Chemistry
- Tianjin Normal University
| | - Jian Li
- Department of Chemistry
- Center for Supramolecular Chemistry and Catalysis
- College of Sciences & Institute for Sustainable Energy
- Shanghai University
- Shanghai 200444
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39
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Li M, Zheng J, Hu W, Li C, Li J, Fang S, Jiang H, Wu W. Palladium-Catalyzed Cyclization of N-Acyl- o-alkynylanilines with Isocyanides Involving a 1,3-Acyl Migration: Rapid Access to Functionalized 2-Aminoquinolines. Org Lett 2018; 20:7245-7248. [PMID: 30394094 DOI: 10.1021/acs.orglett.8b03165] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A simple and expedient approach for the synthesis of functionalized 2-aminoquinolines via palladium-catalyzed annulation of N-acyl- o-alkynylanilines with isocyanides has been developed with high atom economy, in which an unconventional 6- endo-dig cyclization process is observed. Further investigations of the mechanism demonstrated that an intramolecular acyl migration of the N-protecting groups was involved in this transformation.
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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 510640 , China
| | - Jia Zheng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
| | - Weigao Hu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
| | - Chunsheng Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
| | - Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
| | - Songjia Fang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
| | - Wanqing Wu
- State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , China.,Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , China
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40
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He Y, Wang Y, Liang X, Huang B, Wang H, Pan YM. Palladium-Catalyzed Three-Component Reaction: A Novel Method for the Synthesis of N-Acyl Propiolamides. Org Lett 2018; 20:7117-7120. [PMID: 30362763 DOI: 10.1021/acs.orglett.8b03068] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Palladium-catalyzed three-component reactions between terminal alkynes, isonitriles, and sodium carboxylates have been developed. This novel and operationally simple methodology provides an alternative for the synthesis of N-acyl propiolamide derivatives under mild conditions using isonitriles as the amine source and sodium carboxylates as the oxygen and acyl source.
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Affiliation(s)
- Yan He
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University , Guilin 541004 , People's Republic of China
| | - Yingchun Wang
- College of Chemistry and Chemical Engineering , Jishou University , Jishou 416000 , People's Republic of China
| | - Xinping Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University , Guilin 541004 , People's Republic of China
| | - Bin Huang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University , Guilin 541004 , People's Republic of China
| | - Hengshan Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University , Guilin 541004 , People's Republic of China
| | - Ying-Ming Pan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources , School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University , Guilin 541004 , People's Republic of China
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41
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Das DK, Kumar Pampana VK, Hwang KC. Copper catalyzed photoredox synthesis of α-keto esters, quinoxaline, and naphthoquinone: controlled oxidation of terminal alkynes to glyoxals. Chem Sci 2018; 9:7318-7326. [PMID: 30294421 PMCID: PMC6167948 DOI: 10.1039/c8sc03447h] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 08/28/2018] [Indexed: 12/17/2022] Open
Abstract
Controlled oxidation of the terminal C
Created by potrace 1.16, written by Peter Selinger 2001-2019
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C triple bond using O2 (1 atm) as an oxidant and reagent.
Herein, we report a facile visible light induced copper catalyzed controlled oxidation of terminal C
Created by potrace 1.16, written by Peter Selinger 2001-2019
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C alkynes to α-keto esters and quinoxalines via formation of phenylglyoxals as stable intermediates, under mild conditions by using molecular O2 as a sustainable oxidant. The current copper catalysed photoredox method is simple, highly functional group compatible with a broad range of electron rich and electron poor aromatic alkynes as well as aliphatic alcohols (1°, 2° and 3° alcohols), providing an efficient route for the preparation of α-keto esters (43 examples), quinoxaline and naphthoquinone with higher yields than those in the literature reported thermal processes. Furthermore, the synthetic utility of the products has been demonstrated in the synthesis of two biologically active molecules, an E. coli DHPS inhibitor and CFTR activator, using the current photoredox process. In addition, we applied this methodology to the one-pot synthesis of a heterocyclic compound (quinoxaline, an FLT3 inhibitor) by trapping the intermediate phenylglyoxal with O-phenylenediamine. The intermediate phenylglyoxal can also be isolated and further reacted with an internal alkyne to form naphthoquinone. This process can be readily scaled up to the gram scale.
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Affiliation(s)
- Deb Kumar Das
- Department of Chemistry , National Tsing Hua University , Hsinchu , Taiwan , Republic of China .
| | - V Kishore Kumar Pampana
- Department of Chemistry , National Tsing Hua University , Hsinchu , Taiwan , Republic of China .
| | - Kuo Chu Hwang
- Department of Chemistry , National Tsing Hua University , Hsinchu , Taiwan , Republic of China .
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