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

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.

Autoren:   V Dekhane, Deepak; S Pawar, Shivaji; V Gupta, Sunil; S Shingare, Murlidhar; N Thore, Shivaji
Journal:   Letters in Organic Chemistry
DOI:   10.2174/157017811796064449
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