Allylic Phosphates and Allylic Phosphinates as Electrophiles in Efficient Silylcupration Reactions of Acetylenes
作者:Vilnis Liepins、A. Sofia E. Karlström、Jan-E. Bäckvall
DOI:10.1021/jo016229u
日期:2002.4.1
Atom-efficient stoichiometric silylcupration reactions of acetylenes followed by electrophilic trapping of the intermediate vinylcopper species with allylicphosphates have been developed. The reaction sequence was also carried out with the use of a catalytic amount of CuCN employing of both allylicphosphates and allylic phosphinates as electrophiles. The methods developed provide an easy access to