Properties and reactions of substituted 1,2-thiazetidine 1,1-dioxides: Aldol additions of ketones and aldehydes
作者:Martin Müller、Hans-Hartwig Otto
DOI:10.1002/ardp.2503241002
日期:——
Aldol reactions between N‐silylated or 2,3‐disubstituted β‐sultams and ketones or aldehydes result in the C‐4 aldol derivatives 2 and 6. Desilylation of 2 with TBAF yields the N‐unsubstituted compounds 3. Mixtures of diastereomers obtained from reactions with aldehydes are separated by CC, and their structures are elucidated by spectroscopic data.
N- 甲硅烷基化或 2,3- 二取代的 β-舒坦与酮或醛之间的羟醛反应产生 C-4 羟醛衍生物 2 和 6。2 与 TBAF 的脱甲硅烷基化产生 N-未取代的化合物 3. 从反应中获得的非对映异构体的混合物与醛类通过 CC 分离,并通过光谱数据阐明它们的结构。