94612-26-7Relevant articles and documents
An unusual lewis acid promoted isomerization of trans-3-halo-3-phenylthio-β-lactams
Bari, Shamsher S.,Venugopalan, Paloth,Arora, Renu,Modi, Garima,Madan, Sachin
, p. 749 - 762 (2006)
A method for C-3 epimerization of 3-halo-3-phenylthio-β-lactams, mediated by Lewis acids, is described. TiCl4 promotes isomerization of trans-3-chloro-3-phenylthioazetidin-2-ones (2) to cis-3-chloro-3-phenylthioazetidin-2-ones (3). TiBr4/
Studies towards C-3 functionalization of β-lactams using substituted allylsilanes
Thapar, Renu,Reshma,Bari
, p. 1745 - 1753 (2017/03/08)
An effective and stereoselective synthesis of 3-(1′-methyl/phenylallyl)-3-phenylthio-β-lactams (3/4) using substituted allylsilane and Lewis acid is described. The reaction leads to the formation of a mixture of C-3 substituted allyl β-Lactams.
C-3 β-lactam carbocation equivalents: versatile synthons for C-3 substituted β-lactams
Bhalla, Aman,Madan, Sachin,Venugopalan, Paloth,Bari, Shamsher S.
, p. 5054 - 5063 (2007/10/03)
An efficient and operationally simple strategy for the synthesis of differently C-3 monosubstituted (9) and disubstituted (10) monocyclic β-lactams is described. This involves reaction of β-lactam carbocation equivalents (8) with an active aromatic, aliph