Synthesis Of New Amino-1,5-Benzodiazepine And Benzotriazole Derivatives From Dimedone
ORGANIC COMMUNICATIONS(2008)
Abstract
High-yielding syntheses of two unpublished series of amino-1,5-benzodiazepines derivatives 3 and 1,2,3-benzotriazoles 4 bearing a dimedone moiety are respectively reported. Derivatives 3 were obtained by intramolecular cyclisation using cyanogenbromide of enaminone 2. On the other hand, when enaminones 2 were treated with sodium nitrite under acidic conditions, cyclisation led to benzotriazole 4.
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Key words
Dimedone, benzotriazoles, benzodiazepines, cyanobromide, enaminones
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