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Formation ofN,N′-Di(5-alkoxycarbonyl-5-methyl-2-oxo-1-phenyl-2,5-dihydro-1H-pyrrol-3-yl)-N,N′-diphenyloxalylamides in the synthesis of alkyl 4-methyl-2,3,6-trioxo-1,5-diphenyl-1,2,3,4,5,6-hexahydropyrrolo[3,4-b]pyrrole-4-carboxylates

✍ Scribed by V. L. Gein; R. O. Dyrenkov; N. A. Kornienko; M. I. Vakhrin; P. A. Slepukhin


Book ID
114993871
Publisher
SP MAIK Nauka/Interperiodica
Year
2012
Tongue
English
Weight
573 KB
Volume
48
Category
Article
ISSN
1070-4280

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## Abstract magnified image One‐pot reaction of 3‐aryl‐5‐methyl‐1,3,4‐oxadiazolin‐2‐ones **1a‐g** with ethanolamine yielded the 4‐(2‐hydroxyethyl)‐2‐aryl‐5‐methyl‐2,4‐dihydro‐3__H__‐1,2,4‐triazolin‐3‐ones **2a‐g** which were converted to the azido compounds **6a‐g**. These azides on 1,3‐dipolar cy