Oxidative esterification of benzylic alcohols with a catalytic amount of HBr-H2O2 in aqueous medium under mild conditions is reported with a wide range of substrate scope for both benzylic and aliphatic alcohols. The conditions are also suitable for selective mono-esterification of ethylene glycol and glycerol. With catalytic amounts of HBr (20 mol%) and H2O2, the generation of reactive intermediate species BrOH has been ascertained by UV-visible spectra.
作者:A. F. Artamonov、F. S. Nigmatullina、M. T. Aldabergenova、B. Zh. Dzhiembaev
DOI:10.1007/bf02282504
日期:1999.7
The synthesis of alpha-monoglycerides of aromatic acids has been performed by the transesterification of the methyl esters of the corresponding acids with glycerol. The structures of the compounds obtained have been confirmed by their IR, UV, and H-1 and C-13 NMR spectra.
Hibbert; Carter, Journal of the American Chemical Society, 1929, vol. 51, p. 1605,1609
作者:Hibbert、Carter
DOI:——
日期:——
The Relative Stability of Aromatic and Aliphatic Monoglycerides