Wittig reaction of formyl-substituted organotrifluoroborates and stabilized phosphonium ylides in an aqueous medium
摘要:
The synthesis of unsaturated organotrifluoroborates using the Wittig alkenation is described. These transformations to disubstituted alkenes were achieved by using formyl-substituted organotrifluoroborates and stabilized ylides using water as a solvent. The products were isolated in moderate to excellent yields and the reaction gave preferentially the E-isomer. (c) 2007 Published by Elsevier Ltd.