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Li C, Yuan JM, Chen W, He Y, Huang J, Huang Y, Xiao Q, Sheng J, Huang C. Defluorinative C(sp 3 )-P Bond Construction for the Synthesis of Phosphorylation gem-Difluoroalkenes under Catalyst- and Oxidant-Free Conditions. Chem Asian J 2019; 14:2584-2587. [PMID: 31152631 DOI: 10.1002/asia.201900533] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 05/30/2019] [Indexed: 11/06/2022]
Abstract
Defluorinative C(sp3 )-P bond formation of α-trifluoromethyl alkenes with phosphine oxides or phosphonates have been achieved under catalyst- and oxidant-free conditions, giving phosphorylation gem-difluoroalkenes as products. α-Trifluoromethyl alkenes bearing various of aryl substituents such as halogen, cyano, ester and heterocyclic groups are available in this transformation. The results of control experiments demonstrated that the mechanism of dehydrogenative/defluorinative cross-coupling reactions was not a radical route, but might be an SN 2' process involving phosphine oxide anion.
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Affiliation(s)
- Congyu Li
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, No. 175 East Mingxiu Road, Nanning, Guangxi, 530001, China
| | - Jing-Mei Yuan
- School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, No. 15 Yucai Road, Guilin, Guangxi, 541004, China
| | - Wenqiang Chen
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, No. 175 East Mingxiu Road, Nanning, Guangxi, 530001, China
| | - Yimiao He
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, No. 175 East Mingxiu Road, Nanning, Guangxi, 530001, China
| | - Jun Huang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, No. 175 East Mingxiu Road, Nanning, Guangxi, 530001, China
| | - Yanmin Huang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, No. 175 East Mingxiu Road, Nanning, Guangxi, 530001, China
| | - Qi Xiao
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, No. 175 East Mingxiu Road, Nanning, Guangxi, 530001, China
| | - Jiarong Sheng
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, No. 175 East Mingxiu Road, Nanning, Guangxi, 530001, China
| | - Chusheng Huang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, No. 175 East Mingxiu Road, Nanning, Guangxi, 530001, China
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