Preparative Organic Chemistry
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ChemInform Abstract: Addition Reactions of 5-Aminobenzotriazoles with Dimethyl Acetylenedicarboxylate (DMAD). Formation of Z/E-Michael Adducts, ( Benzotriazol-5-yl)-2-pyridones, a Triazolo-9,10-dihydrobenzo(b)azepine and a Triazolo-2-oxindole.
First published: April 6, 1993
Abstract
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ChemInform Abstract
5-Aminobenzotriazoles such as (I) are coupled with dimethyl acetylenedicarboxylate (II) to yield the Michael adduct (IV) as the main product. This is further converted to the 2-pyridone (V), accompanied by the azepine derivative (VI), or to the quinolinone (VII) .
