Investigation of the alkylation of nitroazoles with ?-haloketones by13C,15N, and14N NMR
摘要:
General methods have been worked out for the alkylation of nitroazoles with bromoacetone, bromoacetophenone, and diazoacetone in homogeneous media and by phase-transfer catalysis. The structures of the N-acetonylazoles were established by C-13, N-15, and N-14 high-resolution NMR spectroscopy.
Quaternization of tetrazoles under high pressure and establishment of the structures of quaternary tetrazolium salts by 13C NMR spectroscopy
作者:V. V. Semenov、V. S. Bogdanov、B. S. �l'yanov、L. G. Mel'nikova、S. A. Shevelev、V. M. Zhulin、A. A. Fainzil'berg
DOI:10.1007/bf00506596
日期:1982.8
CEMEHOB, V. V.;UGRAK, B. I.;SHEVELEV, S. A.;KANISHCHEV, M. I.;BARYSHNIKOV+, IZV. AN CCCP. CEP. XIM.,(1990) N, S. 1827-1836
作者:CEMEHOB, V. V.、UGRAK, B. I.、SHEVELEV, S. A.、KANISHCHEV, M. I.、BARYSHNIKOV+
DOI:——
日期:——
Mechanism of nitration of nitrogen-containing heterocyclic N-acetonyl derivatives. General approach to the synthesis of N-dinitromethylazoles
作者:V. V. Semenov、S. A. Shevelev、A. B. Bruskin、M. I. Kanishchev、A. T. Baryshnikov
DOI:10.1007/s11172-009-0285-y
日期:2009.10
bicyclic analogs, as well as imides of carboxylic and sulfonic acids and substituted hydrazines with mixtures of sulfuric and nitric acids. The kinetic study of the reaction mechanism was performed using UV and NMR spectroscopy. It was found that the NO2 groups were sequentially introduced into the methylene fragment by the addition of the nitronium ion to multiple bonds of intermediate enols followed
Investigation of the alkylation of nitroazoles with ?-haloketones by13C,15N, and14N NMR
作者:V. V. Semenov、B. I. Ugrak、S. A. Shevelev、M. I. Kanishchev、A. T. Baryshnikov、A. A. Fainzil'berg
DOI:10.1007/bf00961497
日期:1990.8
General methods have been worked out for the alkylation of nitroazoles with bromoacetone, bromoacetophenone, and diazoacetone in homogeneous media and by phase-transfer catalysis. The structures of the N-acetonylazoles were established by C-13, N-15, and N-14 high-resolution NMR spectroscopy.