Facile Synthesis of Some Chlorinated and Heteroatom-Rich Monocyclic β-Lactams via the Staudinger Reaction of Acyclic S-Alkylisothioureas
作者:Nisha Dawra、Ram Ram
DOI:10.1055/s-0035-1562474
日期:——
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。