preparation of a rare class of highly functionalized (chlorinated and heteroatom-rich) monocyclic β-lactams by the Staudinger reaction of reactive acyclic S-alkylisothioureas with dichloroketene is presented. The use of acyclic S-alkylisothioureas in the Staudinger β-lactam synthesis has been demonstrated for the first time. The present method is mild, economical and wide in scope. The optimized preparation
摘要 提出了通过反应性无环S-烷基异
硫脲与
二氯乙烯酮的斯托丁格反应优化制备稀有类的高度官能化(
氯化和富杂原子的)单环β-内酰胺的方法。首次证明在Staudingerβ-内酰胺合成中使用无环S-烷基异
硫脲。本方法温和,经济,适用范围广。 提出了通过反应性无环S-烷基异
硫脲与
二氯乙烯酮的斯托丁格反应优化制备稀有类的高度官能化(
氯化和富杂原子的)单环β-内酰胺的方法。首次证明在Staudingerβ-内酰胺合成中使用无环S-烷基异
硫脲。本方法温和,经济,适用范围广。