(E)-Trimethyl-(3,3,3-trifluoroprop-1-enyl)silane (1) was synthesized as a reagent for use In Hiyama cross-coupling reactions for the production of beta-trifluoromethylstyrene derivatives. Cross-coupling of 1 with electronically diverse aryl iodides was achieved by treatment with CsF In the presence of catalytic amounts of palladium to afford the desired products In moderate to good yields.
Synthesis of 1-(Trifluoromethyl)alkenes through Transition-Metal-Catalyzed Alkylation and Arylation of 1-Chloro-3,3,3-trifluoroprop-1-ene (HCFO-1233zd)
作者:Xingang Zhang、Wei Zhou、Qing-Wei Zhao、Yun-Cheng Luo
DOI:10.1055/a-2042-3720
日期:——
1-(trifluoromethyl)alkenes through nickel-catalyzed alkylation/arylation of 1-chloro-3,3,3-trifluoroprop-1-ene (HCFO-1233zd) with alkyl/aryl zinc reagents and cobalt-catalyzed reductive cross-coupling between HCFO-1233zd and aryl bromides has been developed. These approaches feature broad substrate scope, high functional group tolerance, and the use of industrial feedstocks and low-cost nickel/cobalt catalysts
Domino Hydroboration/Trifluoromethylation of Alkynes Using Fluoroform-Derived [CuCF<sub>3</sub>]
作者:Lisi He、Xinkan Yang、Gavin Chit Tsui
DOI:10.1021/acs.joc.7b00755
日期:2017.6.16
A domino hydroboration/trifluoromethylation (formal hydrotrifluoromethylation) of alkynes using the fluoroform-derived [CuCF3] reagent is achieved. Synthetically useful (E)-alkenyl-CF3 building blocks and 1,1-bis(trifluoromethyl)-substituted alkenes can be prepared under ambient conditions in one pot/one step from alkynes. The ultimate source of CF3 is the inexpensive industrial waste fluoroform.