Electrolysis of a mixture of paraformaldehyde and terminal acetylene derivatives smoothly provided the corresponding hydroxymethylated compounds in high yields by passing less than 1 F/mol of electricity. Electroreduction of paraformaldehyde generated in situ an efficient base (EGbase), which catalyzed hydroxymethylation of the acetylenes.
Synthesis of optically active alkynyl alcohols and α-hydroxy esters by microbial asymmetric hydrolysis of the corresponding acetates
作者:Kenji Mori、Hiroko Akao
DOI:10.1016/0040-4020(80)85030-7
日期:1980.1
Asymmetric hydrolysis of the acetates of racemic alkynyl alcohols and α-hydroxy esters by Bacillus subtilis var. Niger afforded optically active acetates and alcohols in 7–90% optical purities. The both enantiomers of optically pure mandelie acid were prepared by this microbial method.