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Yu. M. Atroshchenko S. S. Golotvin I. V. Shakhkel'dyan O. V. Shishkin Zh. O. Lavrik O. Ya. Borbulevych M. Yu. Antipin E. N. Alifanova S. S. Gitis I. V. Ivanov A. Ya. Kaminsky 《Russian Chemical Bulletin》1999,48(9):1691-1695
cis, trans-6,8,10-Trinitro-1,4-dioxaspiro[4.5]decane was synthesized by reduction of the corresponding spirocyclic anionic δ-complex
with potassium tetrahydroborate. The molecular structure and the conformation of the title compound were established by X-ray
diffraction analysis and1H NMR spectroscopy.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 9, pp. 1713–1717, September, 1999. 相似文献
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Yu. M. Atroshchenko I. E. Shakhkel'dyan O. Ya. Borbulevich A. N. Shchukin M. Yu. Antipin V. N. Khrustalev 《Russian Journal of Organic Chemistry》2005,41(11):1683-1689
Anionic hydride adduct of 1-(2-hydroxyethoxy)-2,4-dinitrobenzene was brought into a double Mannich condensation with formaldehyde and methylamine to furnish a mixture of isomeric 3-azabicyclo[3.3.1]nonanes: 3-methyl-6-(2-hydroxyethoxy)-1,5-dinitro-3-azabicyclo[3.3.1]non-6-ene and 3-methyl-6,6-ethylenedioxy-1,7-dinitro-3-azabicyclo[3.3.1]nonane. By means of NMR spectroscopy, X-ray difraction analysis, and quantum chemistry (PM3) we demonstrated that the spirocyclic isomer had chair-chair conformation with diequatorial orientation of substituents in positions 3 and 7. 相似文献
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Shakhkel'dyan I. V. Leonova O. V. Atroshchenko Yu. M. Boikova O. I. Borbulevych O. Ya. Grintselev-Knyazev G. V. Yakunina I. E. Shchukin A. N. Alifanova E. N. Subbotin V. A. 《Russian Journal of Organic Chemistry》2003,39(11):1593-1602
By condensation of 2,4-bis(aci-nitro)-3-(2-phenyl-2-oxoethyl)cyclohex-5-en-1-one with formaldehyde and primary amines a series of N-substituted 9-(2-phenyl-2-oxoethyl)-1,5-dinitro-3-azabicyclo[3.3.1]non-7-en-6-ones was synthesized. With the use of X-ray analysis the cyclohexenone fragment in the 3-(2-bromoethyl)-1,5-dinitro-9-(2-phenyl-2-oxoethyl)-3-azabicyclo[3.3.1]non-7-en-6-ones was established to exist in sofa conformation, and the nitrogen-containing ring to have the chair conformation with equatorial orientation of substituents in 3 and 9 positions. The regio- and stereoselectivity of the reaction under study was interpreted relying on the quantum-chemical calculations by AM1 and PM3 procedures. 相似文献
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Yu.M. Atroshchenko I.V. Shakhkel'dyan O.V. Leonova A.N. Shumskii N.A. Troitskii I.E. Yakunina A.N. Shchukin Yu.A. Efremov 《Russian Journal of Organic Chemistry》2005,41(8):1212-1218
A series of 6,11-disubstituted 1,9-dinitro-5-oxa-11-azatricyclo[6.4.0.04,9 ]dodecan-2-ones were prepared from anionic adducts of 2,4-dinitrophenol with propanone and 2-phenylethanone carbanions by successive selective reduction with sodium borohydride and aminomethylation with formaldehyde and primary amines. By spectral methods and by quantum-chemical calculations following PM3 method the structure of the molecules synthesized was shown to contain all the three rings in a chair form with equatorial substituents in positions 6 and 11. 相似文献
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