Synthesis of Trifluoromethyl-allenes by Gold-Catalyzed Rearrangement of Propargyl Benzyl Ethers
作者:Arnaud Boreux、Geoffroy H. Lonca、Olivier Riant、Fabien Gagosz
DOI:10.1021/acs.orglett.6b02636
日期:2016.10.7
A new method for the synthesis of trifluoromethyl-allenes from easily accessible α-trifluoromethyl-propargyl benzylether derivatives following a gold-catalyzed intramolecular hydride transfer has been developed. Various di- and trisubstituted trifluoromethyl-allenes were obtained in good to excellent yields.
Copper-Catalyzed Decarboxylative Trifluoromethylation of Propargyl Bromodifluoroacetates
作者:Ryan Altman、Brett Ambler、Santosh Peddi
DOI:10.1055/s-0033-1339128
日期:——
The development of efficient methods for accessing fluorinated functional groups is desirable. Herein, we report a two-step method that utilizes catalytic copper for the decarboxylative trifluoromethylation of propargyl bromodifluoroacetates is described. This protocol affords a mixture of propargyl trifluoromethanes and trifluoromethyl allenes.