The kinetic resolution of allylic alcohols by a non-enzymatic acylation catalyst; application to natural product synthesis
作者:Stéphane Bellemin-Laponnaz、Jennifer Tweddell、J. Craig Ruble、Frank M. Breitling、Gregory C. Fu
DOI:10.1039/b002041i
日期:——
A planar-chiral DMAP derivative is shown to serve as an effective catalyst for the kinetic resolution of allylic alcohols; to illustrate its practical utility, the catalyst is applied to the resolution of two alcohols that have been employed as intermediates in recent naturalproduct total syntheses.
synthesized starting from enantiomerically pure aldol compounds 9-11, which were obtained by antibody catalysis. Aldolase antibody 38C2 catalyzed the resolution of (+/-)-9 by enantioselective retro-aldolreaction to afford 9 in 90% ee at 50 % conversion. Compounds 10 and 11 were obtained in more than 99% ee at 50% conversion by resolution of their racemic mixtures using newly developed aldolase antibodies