Sulfo-Biginelli reaction: an insight into interaction between sulfamides and enolizable ketones
作者:Alexander Yu. Lyapunov、Andriy V. Tarnovskiy、Mariia H. Osokina、Svitlana V. Shishkina、Dmitry A. Lega、Galyna P. Grabchuk、Dmitriy M. Volochnyuk、Sergey V. Ryabukhin
DOI:10.1007/s10593-023-03222-x
日期:2023.7
employing sulfamide and enolizable ketones was closely inspected in Biginelli reaction. The three-component variation of the reaction ''sulfamide + ketone + anisaldehyde'' and ''sulfamide + ketone + N,N-diethylacetoacetamide'' featured a lack of selectivity and provided a mixture of possible condensation products. Selectivity was improved when ketones were used in the reaction both as carbonyl and enol components
在 Biginelli 反应中仔细检查了磺酰胺和烯醇化酮的相互作用。反应“磺酰胺+酮+茴香醛”和“磺酰胺+酮+ N , N-二乙基乙酰乙酰胺”的三组分变化缺乏选择性,并且提供了可能的缩合产物的混合物。当酮在反应中同时用作羰基和烯醇组分时,选择性得到提高。结果表明,三甲基氯硅烷促进磺酰胺与酮的相互作用,生成1,2,6-噻二嗪。注意到了局限性,并讨论了反应的不可预测的结果。