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Heterocyclic nitro compounds 总被引:1,自引:0,他引:1
M. S. Pevzner T. N. Kulibabina L. A. Malinina 《Chemistry of Heterocyclic Compounds》1979,15(4):451-455
1,2,4-Triazole, 3(5)-R-1,2,4-triazoles (R=CH3, CL, Br, NO2), and their N-trimethylsilyl derivatives were nitrated with nitronium salts. The products were N-nitro-1,2,4-triazoles, which split out the nitro group under the influence of acids and undergo rearrangement to 3-nitrotriazoles when they are heated in inert solvents. When R=NO2, a dinitrotriazole is not formed, and the starting 3-nitro-1,2,4-triazole is recovered.See [1] for communication 21.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, pp. 550–554, April, 1979. 相似文献
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Heterocyclic nitro compounds 总被引:1,自引:0,他引:1
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Kulibabina T. N. Kuzilina E. V. Malinina L. A. Pevzner M. S. 《Chemistry of Heterocyclic Compounds》1976,12(11):1292-1293
The nitration of benzotriazole N-oxide with dilute nitric acid gives the 7-nitro derivative, whereas nitration with a mixture of nitric and acetic acids gives isomers with nitro groups in the 5 and 7 positions in a ratio of 19.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 11, pp. 1570–1572, November, 1976. 相似文献
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