Zz. Huang et al., THE FIRST EXAMPLE OF ALPHA-ORGANOSELENO ARSONIUM YLIDES AND ITS WITTIG-TYPE REACTION, Journal of organometallic chemistry, 490(1-2), 1995, pp. 23-26
alpha-Organoseleno arsonium ylide 3 was synthesized for the first time
by a phenylselenenylation-transylidation reaction. It has sufficient
activity to carry out the Wittig-type reaction, affording a novel meth
od for the stereoselective synthesis of (Z)-alpha-phenylseleno-alpha,b
eta-unsaturated esters