SmI2-promoted tandem desulfurization and reductive coupling reactions of aromatic lactams with carbonyl compounds
作者:Hidemi Yoda、Yasuaki Ujihara、Kunihiko Takabe
DOI:10.1016/s0040-4039(01)02030-5
日期:2001.12
aromatic lactams with carbonyl compounds in the presence of samarium(II) diiodide was found to undergo novel tandem desulfurization and reductive coupling reactions to generate α-hydroxyalkylated lactams in high yield. Stereochemistry of the coupling products was researched and the results that decreasing the steric bulkiness of the N-substituents as well as raising the reaction temperature leads to
发现在二碘化sa(II)存在下用羰基化合物处理硫取代的芳族内酰胺会进行新型的串联脱硫和还原偶联反应,从而以高收率生成α-羟烷基化内酰胺。偶合产物的立体化学进行了研究,并且减小的立体膨松结果Ñ -取代基,以及提高反应温度导致增加的的赤-选择性观察。该立体选择性的机理起源也得到了简要记录。