A cobalt-complexed propyanl in organic synthesis: A highly stereoselective total synthesis of bengamide E
作者:Chisato Mukai、Osamu Kataoka、Miyoji Hanaoka
DOI:10.1016/0040-4039(94)85036-4
日期:1994.9
A highly stereoselective aldol reaction of the cobalt-complexed 4-methylpent-2-ynal 2 with O-silyl ketene O,S-acetal 3 provided the syn-aldol product, which was subsequently converted to (+)-bengamide E through optical resolution and the second diastereoselective aldol reaction as crucial steps.
钴络合的4-甲基戊-2-炔2与O-甲硅烷基烯酮O,S-缩醛3的高度立体选择性羟醛反应提供了顺式羟醛产物,随后通过光学拆分将其转化为(+)-联酰胺E和第二个非对映选择性羟醛反应是关键步骤。