Abstract
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.
Keywords: Imidazolones, arylenediamine, ethyl cyanoformate, lithium bromide, lithium, bromide, heteroaryl, benzoheteroazolones, benzimidazolones, azolones, alkylcarbamate