Hunter et al., Journal of the Chemical Society, 1958, p. 1561,1565
作者:Hunter et al.
DOI:——
日期:——
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