24963-24-4Relevant articles and documents
Synthesis of benzimidazolones, benzooxazolones, 2-amino-benzothiazoles from ethyl cyanoformate and o-phenylene Diamines, o-aminophenols, oaminothiophenols Promoted by Lithium Bromide ;
Dekhane, Deepak V.,Pawara, Shivaji V.,Gupta, Sunil V.,Shingareb, Murlidhar S.,Thore, Shivaji N.
experimental part, p. 406 - 411 (2012/05/04)
The lithium bromide mediated condensation of 1-amino-2-heteroaryl substrates with ethyl cyanoformate, to obtain versatile alkylcarbamate protected benzoheteroazolones was studied. This unprecedented reaction could be used to furnish different azolones like 2-benzimidazolones, 2-benooxazolones and 2-amino-thiazoles in good yields. 2011 Bentham Science Publishers Ltd.