The present paper describes the finding that α- and β-alkylthio-substituted amines possessing a positively charged carbon such as =CHPh, CO2R and CH2SR at the nitrogen undergo cyclization in the presence of lithium diisopropylamide or sodium hydride leading to thiazolidines, thiomorpholines and dihydro-1, 4-benzothiazines.
本文介绍了在
二异丙基酰胺
锂或氢化
钠存在下,α- 和 β-烷
硫基取代的胺在氮上具有带正电荷的碳,如 =CHPh、CO2R 和 CH2SR,会发生环化反应,生成
噻唑啉类、
硫代吗啉类和二氢-1,4-苯并
噻嗪类化合物。