Stereoselective synthesis of vinylic chalcogenides through vinylic substitution by lithium organylchalcogenolates
作者:C.C. Silveira、R.B. Guerra、J.V. Comasseto
DOI:10.1016/j.tetlet.2007.05.074
日期:2007.7
Enol phosphates and enol tosilates of P-dicarbonyl compounds react with lithium organoselenolates to give beta-organo-seleno (Z) -alpha,beta-unsaturated carbonyl compounds. Tetrasubstituted vinylic vic-bis(organylchalcogenides) of (E)-geometry have been prepared by this method. (C) 2007 Elsevier Ltd. All rights reserved.