Diastereoselective aldol reactions of β-silylenolates: a formal synthesis of thienamycin
作者:Ian Fleming、Jeremy D. Kilburn
DOI:10.1039/c39860001198
日期:——
The lithium enolate (1) of benzyl β-phenyldimethylsilylbutanoate reacts with β-phenyldimethylsilylpropionaldehyde (2) to give, with high diastereoselectivity, the aldol product (3), which is converted into the β-lactam (7), a known precursor of thienamycin.
β-苯基二甲基甲硅烷基丁酸苄酯的烯醇锂(1)与β-苯基二甲基甲硅烷基丙醛(2)反应生成高非对映选择性的羟醛产物(3),该产物被转化为已知的噻菌霉素前体β-内酰胺(7)。 。