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ChemInform Abstract: Synthesis of Dibenzo[b,h][1,6]naphthyridin-5,6-diones.

✍ Scribed by M. Sekar; K. J. Rajendra Prasad

Publisher
John Wiley and Sons
Year
2010
Weight
27 KB
Volume
31
Category
Article
ISSN
0931-7597

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## Abstract Novel method for the synthesis of 3‐acyl‐1,6‐dialkyl‐7‐methyl‐1,6‐naphthyridine‐2,5(1H,6H)‐diones (2) was developed. The reaction of 2‐acyl‐1‐alkylamino‐1‐ethoxyethylenes (1) with acetyl chloride or β‐keto amide **3** with acetyl chloride in the presence of __p__‐toluenesulfonic acid ga