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1,1-Diamino-2,2-dinitroethylenes are always zwitterions

โœ Scribed by Pessia Gilinsky-Sharon; Hugo E. Gottlieb; David E. Rajsfus; Keren Keinan-Adamsky; Vered Marks; Pinchas Aped; Aryeh A. Frimer


Book ID
115560290
Publisher
John Wiley and Sons
Year
2012
Tongue
English
Weight
392 KB
Volume
50
Category
Article
ISSN
0749-1581

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Low temperature nitrations of 2-methylimidazole gave in addition to the known 2-methyl-5(4)-nitroimidazole (1), 2-(dinitromethylene)-5,5-dinitro-4-imidazolidinone (3) and parabanic acid (2). The tetranitro compound 3 was also obtained by nitration of 2-methyl-4,5-dihydro-(lH)-5-imidazolone (8). Ther