Synthesis of Benzimidazolones, Benzooxazolones, 2-amino-benzothiazoles from Ethyl Cyanoformate and o-phenylene Diamines, o-aminophenols, oaminothiophenols Promoted by Lithium Bromide

Title: Synthesis of Benzimidazolones, Benzooxazolones, 2-amino-benzothiazoles from Ethyl Cyanoformate and o-phenylene Diamines, o-aminophenols, oaminothiophenols Promoted by Lithium Bromide

Volume: 8 Issue: 6

Author(s): Deepak V. Dekhane, Shivaji S. Pawar, Sunil V. Gupta, Murlidhar S. Shingare and Shivaji N. Thore

Affiliation:

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

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.

Cite this article as:

V. Dekhane Deepak, S. Pawar Shivaji, V. Gupta Sunil, S. Shingare Murlidhar and N. Thore Shivaji, Synthesis of Benzimidazolones, Benzooxazolones, 2-amino-benzothiazoles from Ethyl Cyanoformate and o-phenylene Diamines, o-aminophenols, oaminothiophenols Promoted by Lithium Bromide, Letters in Organic Chemistry 2011; 8 (6) . https://dx.doi.org/10.2174/157017811796064449