Reaction of organocuprate reagents with protected 1,2-anhydro sugars. Stereocontrolled synthesis of 2-deoxy-C-glycosyl compounds
作者:Véronique Bellosta、Stanislas Czernecki
DOI:10.1016/0008-6215(83)85007-1
日期:1993.6
Abstract The reaction of protected 1,2-anhydro-α- d -gluco- and β- d -manno-pyranoses with alkyl and phenyl organocuprates afforded the corresponding C -glycosyl compounds in acceptable to high yield. Complete stereocontrol was obtained, leading respectively to the β- d or the α- d anomer. With the perbenzylated manno derivative, deoxygenation at C-2 was achieved in high yield, affording 2-deoxy-α-