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Li MY, Wei D, Feng CG, Lin GQ. Tandem Reactions involving 1,4‐Palladium Migrations. Chem Asian J 2022; 17:e202200456. [PMID: 35661425 DOI: 10.1002/asia.202200456] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/01/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Meng-Yao Li
- Shanghai Cancer Institute Shanghai Jiao Tong University School of Medicine 1630 Dongfang Road 200127 Shanghai CHINA
| | - Dong Wei
- Shanghai Jiao Tong University General Surgery No.1665 Kongjiang Road, Shanghai 200092 Shanghai CHINA
| | - Cheng-Guo Feng
- Chinese Academy of Sciences Shanghai Institute of Organic Chemistry CAS Key Laboratory of Synthetic Chemistry of Natural Substances CHINA
| | - Guo-Qiang Lin
- Chinese Academy of Sciences Shanghai Institute of Organic Chemistry CAS Key Laboratory of Synthetic Chemistry of Natural Substances CHINA
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Nanjo T, Matsugasako T, Maruo Y, Takemoto Y. Photocatalytic C-O Bond Cleavage of Alcohols Using Xanthate Salts. Org Lett 2021; 24:359-363. [PMID: 34958594 DOI: 10.1021/acs.orglett.1c04029] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The homolytic cleavage of C-O bonds to afford alkyl radicals is an attractive yet challenging transformation in organic synthesis. Herein we describe a photocatalyzed deoxygenative C-C coupling reaction of xanthate salts, which can be easily prepared from the corresponding alcohols. The key to the success of this strategy is the low oxidation potential of the xanthate salt and the use of an appropriate phosphine to accelerate the desulfurative release of carbonyl sulfide.
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Affiliation(s)
- Takeshi Nanjo
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Tatsuki Matsugasako
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Yuri Maruo
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Yoshiji Takemoto
- Graduate School of Pharmaceutical Sciences, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
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Saladrigas M, Loren G, Bonjoch J, Bradshaw B. Hydrogen Atom Transfer (HAT)-Triggered Iron-Catalyzed Intra- and Intermolecular Coupling of Alkenes with Hydrazones: Access to Complex Amines. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03794] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Mar Saladrigas
- Laboratori de Química Orgànica, Facultat de Farmàcia, IBUB, Universitat de Barcelona, Av. Joan XXIII s/n, 08028 Barcelona, Spain
| | - Guillem Loren
- Laboratori de Química Orgànica, Facultat de Farmàcia, IBUB, Universitat de Barcelona, Av. Joan XXIII s/n, 08028 Barcelona, Spain
| | - Josep Bonjoch
- Laboratori de Química Orgànica, Facultat de Farmàcia, IBUB, Universitat de Barcelona, Av. Joan XXIII s/n, 08028 Barcelona, Spain
| | - Ben Bradshaw
- Laboratori de Química Orgànica, Facultat de Farmàcia, IBUB, Universitat de Barcelona, Av. Joan XXIII s/n, 08028 Barcelona, Spain
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Cai Q, Zhu YP, Gao Y, Sun JJ, Wu AX. A direct method for the synthesis of indolizine derivatives from easily available aromatic ketones, pyridines, and acrylonitrile derivatives. CAN J CHEM 2013. [DOI: 10.1139/cjc-2012-0534] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A concise and efficient strategy has been proposed to synthesize indolizine derivatives from easily available aryl or heteroaryl methyl ketones, pyridines, and acrylonitriles. The mechanistic pathway involved the integration of iodination, pyridinium ylide synthesis, and 1,3-dipolar cycloaddition. The protocols were found to be highly efficient in terms of high yields, operational simplicity, mild reaction conditions, and easy workup. This method has provided an important supplement for the synthesis of indolizine derivatives via a novel tandem synthesis.
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Affiliation(s)
- Qun Cai
- The Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Yan-Ping Zhu
- The Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Yang Gao
- The Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - Jing-Jing Sun
- The Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
| | - An-Xin Wu
- The Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China
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A facile tandem radical cyclization route to propellanes and its application to a total synthesis of modhephene. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.01.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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