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cis-1,5-Dimethyl-2,4-dinitro-2,4-diazabicyclo[3.2.0]heptan-3-one and cis-1,5-dimethyl-2,4-dinitro-2,4-diazabicyclo[3.1.0]hexan-3-one were both synthesized in three steps each from a common precursor, 1,3-diacetyl-4,5-dimelhyl-4-imidazolin-2-one. 相似文献
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N. N. Yarmukhamedov N. Z. Baibulatova V. A Dokichev T. V. Khakimova L. V. Spirikhin Yu. V. Tomilov M. S. Yunusov 《Russian Chemical Bulletin》2005,54(2):414-420
1,5-Dinitro-3,7-diazabicyclo[3.3.1]nonane derivatives were synthesized in up to 83%yields by the Mannich reaction of 1,3-dinitropropanes with excess formaldehyde and primary amines. In some cases, for instance, when 2,2-dimethyl-1,3-dinitropropane and benzylamine or monoethanolamine are used, the reaction occurs with low yields or stops at the step of formation of 3,5-dinitropiperidines. The influence of the structure of the starting compounds and reaction conditions on the yields of 1,5-dinitro-3,7-diazabicyclo[3.3.1]nonanes and 3,5-dinitropiperidines was studied.__________Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 2, pp. 405–411, February, 2005. 相似文献
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A. I. Kuznetsov K. I. Romanova E. B. Basargin A. S. Moskovskii B. V. Unkovskii 《Chemistry of Heterocyclic Compounds》1990,26(4):461-465
Heating 1,5-dinitro-3,7-di(tert-butyl)-3,7-diazabicyclo[3.3.1]-nonane with concentrated hydrobromic acid gives 1,5-dinitro-3,7-diazabicyclo[3.3.1]nonane. Cyclization of the latter with various aldehydes and ketones gave a series of 2,2-disubstituted 5,7-dinitro-1,3-diazaadamantanes. The behavior of the synthesized compounds under electron impact has been studied.For Communication 8 see [1].Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, pp. 538–542, April, 1990. 相似文献
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Conclusions Benzoylation of bisazomethine derivatives of 1,3-diaminocyclohexane and 1,3-diamino-cyclopentane has given 3-aryl-2,4-dibenzoyl-2,4-diazabicyclo13.3.1]-nonanes and 3-aryl-2,4-dibenzoyl-2,4-diazabicyclo[3.2.1]octanes.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 4, pp. 835–839, April, 1988.The authors thank V. V. Yakubënka for the gift of samples of cis- and trans-1,3-diaminocyclo-hexane. 相似文献
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Yu. M. Atroshchenko N. K. Melekhina I. V. Shakhkel’dyan I. E. Yakunina A. N. Shchukin E. V. Shuvalova V. A. Subbotin 《Russian Journal of Organic Chemistry》2006,42(8):1220-1224
The electrophilic chlorine addition to 3-substituted 1,5-dinitro-3-azabicyclo[3.3.1]-non-6-enes in the tetrachloromethane is accompanied at an intramolecular 3,7-cyclization giving 6-chloro-3-R-1,5-dinitro-3-azoniatricyclo[3.3.1.03,7]nonane chlorides. The reaction of the tricyclic quaternary ammonium salts with sodium methoxide leads to the formation of dealkylated and dehydrohalogenated products, 3-substituted 8-chloro-1,5-dinitro-3-azabicyclo[3.3.1]non-6-enes, bicyclic products with a halogen atom in an allyl position with respect to the double bond. 相似文献
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M. Zh. Buranbaev Yu. P. Gladii T. T. Omarov A. Sh. Gubasheva V. A. Palyulin N. S. Zephirov 《Journal of Structural Chemistry》1990,31(1):176-178
S. M. Kirov Kazakh State University. Chemical Institute for Oil and Natural Salts, Academy of Sciences of the Kazakh SSR. M. V. Lomonosov State University, Moscow. Translated from Zhurnal Strukturnoi Khimii, Vol. 31, No. 1, pp. 189–192, January–February, 1990. 相似文献
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A. V. Puchnin M. A. Bastrakov A. M. Starosotnikov S. V. Popkov S. A. Shevelev 《Russian Chemical Bulletin》2012,61(3):596-599
The previously unknown 3-R-1,5-dinitro-3-azabicyclo[3.3.1]nonanes fused to the pyrazole or thiazole rings were synthesized by the reductive cyclization of m-dinitroindazoles and benzothiazoles. The method is based on the reduction of carbon-carbon bonds in the benzene ring, which are activated by the meta-nitro groups, with NaBH4 followed by the Mannich reaction with formaldehyde and primary amines. 相似文献
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Benzo[f]-1,5-diazabicyclo[3.2.2]nonen-3-one was synthesized by the oxidation of benzo[f]-1,5-diazabicydo[3.2.2]nonen-3-ol by dimethyl sulfoxide in the presence of N,N-dicycohexylcarbodiimide and the reactions of this compound with 2,4-dinitrophenylhydrazine, phenylmagnesium bromide, and condensation with 4-nitro-benzaldehyde were carried out. It was shown that on heating with hydrobromic acid, benzo[f]-1,5-diazabicyclo[3.2.2]nonen-3-one undergoes dealkylation with the formation of 1,2,3,4-tetrahydroquinoxaline.For Communication 23, see [1].Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 8, pp. 1117–1120, August, 1991. 相似文献
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I. V. Shakhkeldyan Yu. M. Atroshchenko N. K. Melekhina I. E. Yakunina K. I. Kobrakov A. N. Shumsky 《Chemistry of Heterocyclic Compounds》2008,44(6):690-699
The electrophilic addition of bromine to 3-substituted 1,5-dinitro-3-azabicyclo[3.3.1]non-6-ene in carbon tetrachloride is
accompanied by intramolecular 3,7-cyclization with the formation of 6-bromo-3-R-1,5-dinitro-3-azonia-tricyclo[3.3.103,7]nonane tribromides. In the bromination of 1,5-dinitro-3-azabicyclo[3.3.1]non-6-enes containing substituents at the double
bond, molecular complexes of halogen with the substrate were obtained.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 6, pp. 862–873, June, 2008. 相似文献
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I. E. Yakunina A. N. Shchukin M. V. Kopyshev I. V. Shakhkel’dyan A. N. Shumskii A. A. Yakovenko K. A. Lysenko Yu. M. Atroshchenko 《Russian Journal of Organic Chemistry》2011,47(6):877-880
Reduction of 6-substituted 1,5-dinitro-3-azabicyclo[3.3.1]non-6-enes gives either saturated 1,5-diamino-3-azabicyclo[3.3.1]nonane
or unsaturated 1,5-diamino-3-azabicyclo[3.3.1]non-6-enes, depending on the conditions and nature of substituent in the substrate. 相似文献
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The interaction of 1,3-diaminopropane with glyoxal and NaOCl in water at pH 9.5–10.5 afforded the previously unknown 6,6′-bis(1,5-diazabicyclo[3.1.0]hexane).
According to X-ray diffraction data, both bicyclic fragments of the title compound adopt a boat conformation.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 3, pp. 623–625, March, 1999. 相似文献