The Dual Roles of Oxodiperoxovanadate Both as a Nucleophile and an Oxidant in the Green Oxidation of Benzyl Alcohols or Benzyl Halides to Aldehydes and Ketones
A Green Procedure for the Oxidation of Benzyl Halides to Aromatic Aldehydes or Ketones in Aqueous Media
作者:Pengwu Zheng、Li Yan、Xiujie Ji、Xuemin Duan
DOI:10.1080/00397910903531623
日期:2010.12.21
Green oxidation of benzyl halides to the corresponding aldehydes or ketones was achieved in aqueousmedia using trimethylamine N-oxide generated in situ from trimethylamine and H2O2. The yield of the reaction was excellent and the workup was simple.
malonates to in situ generated N-formylimines of aromatic aldehydes was achieved underphase-transfercatalysis using Cinchona alkaloids-derived quaternaryammoniumsalts. The resulting β-formamidomalonates have been efficiently converted into β-aryl-β-isocyano esters. Their utility in the multicomponent Ugi reaction with chiral cyclic imines has been demonstrated.