896746-43-3Relevant articles and documents
High nucleophilicity of cyclic amidocarbene toward aryl isocyanates, new approach to spiro[azetidinone-4,3′-indolinone] derivatives
Cheng, Ying,Wang, Bo,Cheng, Lan-Qing
, p. 4418 - 4427 (2007/10/03)
The nucleophilic addition of β-lactam-4-ylidenes 2, a type of ambiphilic cyclic amidocarbene, to aryl isocyanates has been studied and their application in organic synthesis has been demonstrated. Thermolysis of spiro[β-lactam-4,2′-oxadiazolines] 1 in the