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Conclusions Study bas shown that the first stage in the reduction of 1,1-dinitroethane and fluorodinitromethane in strongly acidic solution is a two-electron C-N bond rupture process, the subsequent stages of the reaction being determined by the relative rates of the competing processes of protonation, nitrosation, and Neff reaction.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 3, pp. 567–573, March, 1977. 相似文献
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Conclusions In polarograms of solutions of salts of CH2(NO2)2, CH3CH(NO2)2, FCH(NO2)2, and CH3CH2NO2 in abs. methanol, an anodic wave is present, due to increased ionization of mercury, by the tying up of mercury ions with the anions of these compounds to form slightly dissociated organomercury compounds.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 9, pp. 2021–2023, September, 1980. 相似文献
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V. V. Paramonov V. A. Petrosyan V. I. Slovetskii A. A. Fainzil'berg Yu. G. Dubovik 《Russian Chemical Bulletin》1976,25(8):1628-1631
Conclusions Data on electrolysis in strongly acidic media have shown that, contrary to accepted belief, reduction of the un-ionized form of trinitromethane proceeds through C-N bond rupture rather than through breakage of the nitro group N-O bond.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 8, pp. 1725–1729, August, 1976. 相似文献
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É. T. Apasov A. V. Kalinin Yu. A. Strelenko V. A. Tartakovskii 《Russian Chemical Bulletin》1988,37(12):2594-2595
Conclusions Primary aliphatic nitro compounds react with magnesyl derivatives of tert-butylamine with the formation of the corresponding amidooximes, while 2-nitropropane under analogous conditions gives a -aminooxime.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 12, pp. 2873–2874, December, 1988. 相似文献
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Noboru Ono Hideyoshi Miyake Akio Kamimura Isami Hamamoto Rui Tamura Aritsune Kaji 《Tetrahedron》1985,41(19):4013-4023
Aliphatic nitro groups are replaced by hydrogen on treatment with tributyltin hydride which proceeds via free radical chain processes. As the nitro group is selectively denitrated and other reducible groups are not affected with tributyltin hydride, this reaction can be used as a method for removing the nitro group from polyfunctional compounds. The radical intermediates generated via denitration can be also used for the carbon-carbon bond forming reactions. 相似文献
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1. | The principal reaction path for flash photolysis of fluorotrinitromethane (FTNM) in alcoholic solvents is that leading to the formation of fluorodinitromethane anions through an ionic mechanism. |
2. | Study has been made of the kinetics of FDNM anion formation in FTNM photolysis in abs. methanol containing CH3ONa. It was found that the reaction is first order with respect to the FTNM. |
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Oleg S. Chizhov Valentin I. Kadentsev Galina G. Palmbach Konstantin Ia. Burstein Svyatoslav A. Shevelev Albert A. Feinsilberg 《Journal of mass spectrometry : JMS》1978,13(11):611-617
The chemical ionization mass spectra of various aliphatic nitro compounds have been studied. Almost all the nitro compounds form stable [M+H]+ ions in sharp contrast to the instability of their ions produced by other ionization techniques. The fragmentations of the [M+H]+ ions are discussed, the mechanisms and structures of fragment ions proposed being supported by quantum mechanical calculations. Correlations between chemical ionization mass spectra and structures of compounds studied are outlined. Reliable identification of mono- and polynitroalkanes and some related derivatives may be made by analysis of their chemical ionization mass spectra. 相似文献
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James A. Ballantine Jonathan D. Barton James F. Carter Jeremy P. Davies Keith Smith Geoffrey Stedman Eric E. Kingston 《Journal of mass spectrometry : JMS》1988,23(1):1-5
The mass spectra of a number of aliphatic nitro compounds have been studied using electron Ionization (EI) and a variety of chemical Ionization (CI) techniques in attempts to obtain relative molecular mass information. The use of positive ion ammonia chemical Ionization techniques gave very satisfactory results, providing abundant [M + NH4]+ ions, not only from both primary and secondary nitro compounds, but also from the much more labile tertiary nitro compounds. However, the use of methane and isobutane positive ion CI or EI conditions resulted in facile fragmentation with little relative molecular mass information being made available. Negative ion CI using methane, isobutane or ammonia as moderating gases all gave abundant [M ? 1]? ions with primary and secondary nitro compounds but at much reduced sensitivity. 相似文献
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