Catalytic Nucleophilic Fluorination of Secondary and Tertiary Propargylic Electrophiles with a Copper-N-Heterocyclic Carbene Complex
作者:Li-Jie Cheng、Christopher J. Cordier
DOI:10.1002/anie.201506882
日期:2015.11.9
A catalytic method for the nucleophilicfluorination of propargylicelectrophiles is described. Our protocol involves the use of a Cu(NHC) complex as the catalyst and is suitable for the preparation of secondary and tertiarypropargylic fluorides without the formation of isomeric fluoroallenes. Preliminary mechanistic investigations suggest that fluorination proceeds via copper acetylides and that