AN IMPROVED PROCEDURE FOR THE TWO CARBON HOMOLOGATION OF ESTERS TO α,β-UNSATURATED ESTERS

Article abstract of DOI:10.1016/S0040-4039(00)84232-X

Treatment of esters with diisobutylaluminium hydride (DIBAL) in the presence of lithio-trialkylphosphonoacetate results in improved yields of the homologated α,β-unsaturated esters.The problematic overreduction, which has previously observed in the half reduction of esters using DIBAL, is minimal (<3percent) under these conditions.