The Behavior of Thiochromanone and Isothiochromanone Sulfoxides in the Schmidt Reaction: Isolation of a Novel Azide Product from Thiochromone Sulfone
作者:Ian W. J. Still、M. Thomas Thomas、Alan M. Clish
DOI:10.1139/v75-038
日期:1975.1.15
of related sulfoxides. In all cases lactam formation by attack of HN3 on the carbonyl group of the keto sulfoxide appears to predominate, with no evidence for sulfoximine formation. The question of aryl vs. alkyl migration, as in other systems, is dependent on the degree of substitution of the alkyl group. When the Schmidt reaction was carried out upon thiochromone 1,1-dioxide two products, the lactam
Schmidt 反应是在 thiochroman-4-one 1-oxide 和许多相关亚砜上进行的。在所有情况下,通过 HN3 攻击酮亚砜的羰基形成内酰胺似乎占主导地位,没有形成亚砜亚胺的证据。与其他系统一样,芳基与烷基迁移的问题取决于烷基的取代度。当对硫色酮 1,1-二氧化物两种产物进行施密特反应时,得到了乙烯基优先迁移产生的内酰胺和 1,4-加成产生的新型 α-叠氮基砜。