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1,6-Dimethyltetrahydroimidazo[4,5-d]-imidazole-2,5(1H,6H)-dione monohydrate

✍ Scribed by Dekaprilevich, M. O. ;Suvorova, L. I. ;Khmelnitskii, L. I.

Book ID: 114511230
Publisher: International Union of Crystallography
Year: 1994
Tongue: English
Weight: 342 KB
Volume: 50
Category: Article
ISSN: 0108-2701
DOI: 10.1107/s0108270194004555

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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