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Chen S, Yang Y, Chen C, Wang C. Advances in Transition-Metal-Catalyzed Keto Carbonyl-Directed C—H Bond Functionalization Reactions. CHINESE J ORG CHEM 2023. [DOI: 10.6023/cjoc202205033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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Li H, Gu H, Lu Y, Xu N, Han N, Li J, Liu J, Liu J. Synthesis of Tetrahydrocarbazol-4-ones via Rh(III)-Catalyzed C-H Activation/Annulation of Arylhydrazines with Iodonium Ylides. J Org Chem 2022; 87:8142-8150. [PMID: 35675060 DOI: 10.1021/acs.joc.2c00852] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The rhodium(III)-catalyzed C-H activation followed by intramolecular annulation reactions between arylhydrazines and iodonium ylides under suitable conditions has been described. Tetrahydrocarbazol-4-ones are readily achieved with moderate to excellent yields. The synthetic protocol features a wide range of substrates with high functional group tolerance. The gram-scale reaction and derivatization of the product demonstrate the synthetic practicality and utilization of this method.
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Affiliation(s)
- He Li
- College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, China
| | - Haichun Gu
- College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, China
| | - Ye Lu
- College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, China.,Inner Mongolia Key Laboratory of Carbon Nanomaterials, Nano Innovation Institute (NII), Inner Mongolia Minzu University, Tongliao 028000, China
| | - Ning Xu
- College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, China
| | - Narenchaoketu Han
- College of Traditional Mongolian Medicine, Inner Mongolia Minzu University, Tongliao 028000, China
| | - Jiaqi Li
- College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, China
| | - Jinghai Liu
- College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, China.,Inner Mongolia Key Laboratory of Carbon Nanomaterials, Nano Innovation Institute (NII), Inner Mongolia Minzu University, Tongliao 028000, China
| | - Jinglin Liu
- College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, China.,Inner Mongolia Key Laboratory for the Natural Products Chemistry and Functional Molecular Synthesis, Inner Mongolia Minzu University, Tongliao 028000, China
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Jha N, Khot NP, Kapur M. Transition-Metal-Catalyzed C-H Bond Functionalization of Arenes/Heteroarenes via Tandem C-H Activation and Subsequent Carbene Migratory Insertion Strategy. CHEM REC 2021; 21:4088-4122. [PMID: 34647679 DOI: 10.1002/tcr.202100193] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/22/2021] [Accepted: 09/23/2021] [Indexed: 12/20/2022]
Abstract
The past decade has witnessed tremendous developments in transition-metal-catalyzed C-H bond activation and subsequent carbene migratory insertion reactions, thus assisting in the construction of diverse arene/heteroarene scaffolds. Various transition-metal catalysts serve this purpose and provide efficient pathways for an easy access to substituted heterocycles. A brief introduction to metal-carbenes has been provided along with key mechanistic pathways underlying the coupling reactions. The purpose of this review is to provide a concise knowledge about diverse directing group-assisted coupling of varied arenes/heteroarenes and acceptor-acceptor/donor-acceptor diazo compounds. The review also highlights the synthesis of various carbocycles and fused heterocycles through diazo insertion pathways, via C-C, C-N and C-O bond forming reactions. The mechanism usually involves a C-H activation process, followed by diazo insertion leading to subsequent coupling.
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Affiliation(s)
- Neha Jha
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal Bhauri, Bhopal, 462066, Madhya Pradesh, India
| | - Nandkishor Prakash Khot
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal Bhauri, Bhopal, 462066, Madhya Pradesh, India
| | - Manmohan Kapur
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal Bhauri, Bhopal, 462066, Madhya Pradesh, India
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Bhat A, Tucker N, Lin JB, Grover H. Stereoselective copper-catalyzed heteroarene C-H functionalization/Michael-type annulation cascade with α-diazocarbonyls. Chem Commun (Camb) 2021; 57:10556-10559. [PMID: 34557880 DOI: 10.1039/d1cc04590c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A stereoselective, copper-catalyzed, arene C(sp2)-H functionalization/Michael-type annulation reaction involving α-diazocarbonyl compounds has been developed. The method features low catalyst loadings, high yields, and excellent regio and stereoselectivity, in the synthesis of various heteroaromatic frameworks by employing indoles as the arene partner.
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Affiliation(s)
- Aabid Bhat
- Department of Chemistry, Memorial University of Newfoundland, St. John's, Newfoundland, A1B 3X7, Canada.
| | - Nathan Tucker
- Department of Chemistry, Memorial University of Newfoundland, St. John's, Newfoundland, A1B 3X7, Canada.
| | - Jian-Bin Lin
- C-CART, CREAIT Network, Memorial University of Newfoundland, St. John's, Newfoundland, A1B 3X7, Canada
| | - Huck Grover
- Department of Chemistry, Memorial University of Newfoundland, St. John's, Newfoundland, A1B 3X7, Canada.
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