THE BINARY REAGENT PHSECL-ZNCL2 - A POWERFUL CHLORO-PHENYLSELENENYLATING AGENT OF ELECTROPHILIC OLEFINS

The binary reagent PhSeCl-ZnCl2 was found to be powerful for the stereocontrolled conversion of highly electrophilic olefins, such as maleate and fumarate esters, into the corresponding chloro phenylseleno derivatives in very high yields. Other olefins, such as methyl acrylate and methyl vinyl ketone, react virtually instantaneously.