Synthesis of Enantiopure Chiral Perhydrobenzimidazole and Hexahydroquinoxaline Derivatives
作者:Barbara Zaleska、Robert Socha
DOI:10.1007/s007060070038
日期:2000.10.16
Starting from 2-anilino-2-ethoxy-3-oxothiobutyric acid anilides and (R,R)-or (S,S)-trans-1,2-diaminocyclohexane, chiral C2-disubstituted perhydrobenzimidazole and trans-4a,5,6,7,8,8a-hexahydroquinoxaline derivatives were obtained depending on the polarity of the solvent.