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Li C, Huang H, Liu F, Yuan C, Chen S, Hua Y, Ding H, Song XR, Xiao Q. Synthesis of (Thio)Furan-Fused Phospholes via Phosphonation Cyclization and a Base-Promoted Phospha-Friedel-Crafts Reaction. J Org Chem 2022; 87:2632-2639. [PMID: 35029389 DOI: 10.1021/acs.joc.1c02577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein, we developed a novel strategy for synthesizing ladder (thio)furan-fused phospholes via intermolecular phosphonation cyclization and a base-promoted phospha-Friedel-Crafts reaction under mild conditions. The starting substrates are readily available phosphinic acids and easy-to-handle alkynes. The details of the reaction mechanism were further rationalized using theoretical calculations. This protocol can be widely applied to synthesize furan- and thiofuran-fused phospholes as well as the corresponding large π-extended derivatives, which are of great interest in the domain of organic functional materials.
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Affiliation(s)
- Chenchen Li
- Key Laboratory of Organic Chemistry in Jiangxi Province, Institute of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Haiyang Huang
- Key Laboratory of Organic Chemistry in Jiangxi Province, Institute of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Fen Liu
- Key Laboratory of Organic Chemistry in Jiangxi Province, Institute of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Chengxiong Yuan
- Key Laboratory of Organic Chemistry in Jiangxi Province, Institute of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Siyu Chen
- Key Laboratory of Organic Chemistry in Jiangxi Province, Institute of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Yuhui Hua
- Key Laboratory of Organic Chemistry in Jiangxi Province, Institute of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Haixin Ding
- Key Laboratory of Organic Chemistry in Jiangxi Province, Institute of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Xian-Rong Song
- Key Laboratory of Organic Chemistry in Jiangxi Province, Institute of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Qiang Xiao
- Key Laboratory of Organic Chemistry in Jiangxi Province, Institute of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China
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Nishimura K, Hirano K, Miura M. Direct Synthesis of Dibenzophospholes from Biaryls by Double C–P Bond Formation via Phosphenium Dication Equivalents. Org Lett 2020; 22:3185-3189. [DOI: 10.1021/acs.orglett.0c00944] [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)
- Kazutoshi Nishimura
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Koji Hirano
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Masahiro Miura
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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