A Novel Synthesis of α,β,γ,δ-Unsaturated Selenoamides by Using [3,3] Sigmatropic Rearrangement of Alkynyl Propargyl Selenides in the Presence of Diethylamine

Abstract [3,3] Sigmatropic rearrangement of alkynyl propargyl selenides in the presence of an excess amount of Et2NH afforded N,N-diethyl-2,4-pentadieneselenoamides in modest yields.