作者:Osman Achmatowicz、Barbara Szechner、Jan K. Maurin
DOI:10.1016/s0040-4020(97)00253-6
日期:1997.4
Addition of organolithium reagents to the sugar enones: alkyl 2,3,6-trideoxy-α-l- and 2,3-dideoxy-α-d-hex-2-enopyranosid-4-ulose has been examined. Butyl, benzyl and 2,5-dimethoxy-4-methylphenyllithium add, with increasing stereoselectivity, to the carbonyl group of the α,β-unsaturated ketosugars, whereas 2,5-dimethoxybenzyllithium undergoes stereospecific conjugate addition and 1,2-addition in the
已经研究了将有机锂试剂加到糖烯酮上:已研究了烷基2,3,6-三苯氧基-α-1-和2,3-二脱氧-α-d-hex-2-enopyranosid-4-ulose。丁基,苄基和2,5-二甲氧基-4-甲基苯基锂以增加的立体选择性加到α,β-不饱和酮糖的羰基上,而2,5-二甲氧基苄基锂在骨架中进行立体有择的共轭加成和1,2-加成。比例为1.7:1。所得甲醇的结构基于X射线晶体学证据。©1997由Elsevier Science Ltd发布。