Diastereoface Discrimination in the Addition of Acetylide to a Chiral Aldehyde, Leading to a Synthesis of (+)-Deoxybiotin in Enantiomerically Pure Form Starting from L-Cysteine
作者:Tamotsu Fujisawa、Michiharu Nagai、Yoshihiro Koike、Makoto Shimizu
DOI:10.1021/jo00099a009
日期:1994.10
Complete diastereofacial discrimination was observed upon addition of the chlorozinc acetylide derived from 1-hexyne to a chiral aldehyde prepared from L-cysteine. The addition product was used in a short synthesis of (+)-deoxybiotin, a precursor of (+)-biotin, which was produced in enantiomerically pure form in 12 steps, starting from L-cysteine.