Enantioselective desymmetrization of meso-cyclic anhydrides catalyzed by hexahydro-1H-pyrrolo[1,2-c]imidazolones
作者:Yasuhiro Uozumi、Kayo Yasoshima、Takamasa Miyachi、Shin-ichi Nagai
DOI:10.1016/s0040-4039(00)01972-9
日期:2001.1
Asymmetric methanolysis of meso cyclic carboxylic anhydrides including hexahydrophthalic anhydride proceeded in toluene in the presence of (6R,7aS)-(2-aryl-6-hydroxy)hexahydro- 1H-pyrrolo[1,2-c]imidazol-1-one to give the corresponding desymmetrized mono ester acids (e.g. (1S,2R)-2- (methoxycarbonyl)cyclohexane-1-carboxylic acid) with enantiomeric excesses of up to 89%. (C) 2001 Elsevier Science Ltd. All rights reserved.