Studies on pyrrolidinones. On the carbamoylation of some pyroglutamic derivatives
作者:Pascal Cauliez、Dominique Fasseur、Daniel Couturier、BenoǏT Rigo、Antonios Kolocouris
DOI:10.1002/jhet.5570330439
日期:1996.7
The carbamoylation of some lactams derivatived from pyroglutamic acid as been studied; better yields were obtained starting from the unsubstitued lactam (toluene, 80°) rather than starting with the N-silyllactam (room temperature), although these latter reaction conditions could be interesting for heat sensitive compounds. Methyl and phenyl isothiocyanate react only with the sodium salt of methyl pyroglutamate
有人研究了焦谷氨酸衍生的一些内酰胺的氨基甲酸酯化作用;从未取代的内酰胺(甲苯,80°)开始,而不是从N-甲硅烷基内酰胺(室温)开始,可以获得更好的收率,尽管这些后反应条件对于热敏化合物可能是令人感兴趣的。异硫氰酸甲酯和异硫氰酸苯酯仅与焦谷氨酸甲酯的钠盐反应,生成1,5-二加成产物。