Easy Synthesis of Substituted 1,3-Dithiole-2-ylidene Selenophenes from Selenoheterodienes.
摘要:
An original synthesis of substituted formyl selenophene heterocycles is described via selenoamide vinylogue from N-selenoacylamidines. The access of mono and his-substituted 1,3-dithiol-2-ylidene selenophenes, potential pi-conjugated precursors of selenafulvalene analogs, was achieved using Wittig olefination.