Monofluorovinyl Tosylate: A Useful Building Block for the Synthesis of Terminal Vinyl Monofluorides via Suzuki−Miyaura Coupling
作者:He Zhang、Chang-Bing Zhou、Qing-Yun Chen、Ji-Chang Xiao、Ran Hong
DOI:10.1021/ol102645g
日期:2011.2.18
Monofluorovinyl tosylate was developed as a practical vinyl fluoride building block to couple with a variety of arylboronic acids in the presence of a palladium catalyst. The high stereoselectivity of 2-aryl-1-fluoroethene derivatives was achieved. This approach is also applicable to the synthesis of 2,2-diaryl-1-fluoroethenes in good yields.
Stereodivergent hydrodefluorination of gem-difluoroalkenes: selective synthesis of (Z)- and (E)-monofluoroalkenes
作者:Ryoto Kojima、Koji Kubota、Hajime Ito
DOI:10.1039/c7cc05225a
日期:——
We have developed a novel approach for the stereodivergent hydrodefluorination of gem-difluoroalkenes using copper(I) catalysts to obtain stereodefined monofluoroalkenes. Both (Z)- and (E)-terminal monofluoroalkenes were obtained by hydrodefluorination of gem-difluoroalkenes in the presence of copper(I) catalysts and diboron or hydrosilane, respectively, with high stereoselectivity. DFT calculations