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Yu. S. Syroeshkina L. L. Fershtat M. A. Syroeshkin V. V. Kuznetsov K. A. Lyssenko N. N. Makhova 《Russian Chemical Bulletin》2009,58(5):1002-1006
Complexes of bicyclic diaziridines 6,6′-bi(1,5-diazabicyclo[3.1.0]hexane) (L
1
) and 6-(4-methoxyphenyl)-1,5-diazabicyclo[3.1.0]hexane (L
2
) with the salts Cd(NO3)2 · 4H2O and Cd(ClO4)2 · 6H2O have been synthesized. The fact of complexation has been established by cyclic voltammetry. The crystal structure of complex
L
1
with Cd(NO3)2 (the coordination number of cadmium is 8) has been studied by X-ray diffraction. 相似文献
2.
Yu. S. Syroeshkina V. V. Kuznetsov K. A. Lyssenko N. N. Makhova 《Russian Chemical Bulletin》2009,58(2):366-379
The present study revealed two new reactions resulting in the diaziridine ring expansion, viz., the insertion of the CS2 molecule and the CN group of activated nitriles into the C—N bond of the diaziridine fragment of 6-aryl-1,5-diazabicyclo[3.1.0]hexanes.
These reactions can be performed only in ionic liquids in the presence of BF3 · Et2O as the catalyst. Based on these reactions, we developed simple one-pot methods for the synthesis of 3-aryldihydro-5 H-pyrazolo[1,2- c][1,3,4]thiadiazole-1-thiones and 1-aryl-6,7-dihydro-1 H,5H-pyrazolo-[1,2-a][1,2,4]triazoles in high yields. Dipolar intermediates of new reactions, which are direct precursors of the final products,
were detected by NMR methods. One of the intermediates was isolated and characterized. The reaction of 6-aryl-1,5-diazabicyclo[3.1.0]hexanes
with benzoyl cyanide affords (2-benzoyrpyrazolidin-1-yl)(aryl)acetonitriles. 相似文献
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4.
Vladimir V. Kuznetsov Julia S. Syroeshkina Dmitrii I. Moskvin Marina I. Struchkova Nina N. Makhova Alexey A. Zharov 《Journal of heterocyclic chemistry》2008,45(2):497-502
5.
Syroeshkina Yu. S. Petukhova V. Yu. Kachala V. V. Nelyubina Yu. V. Makhova N. N. 《Russian Chemical Bulletin》2010,59(7):1433-1441
A reaction of aryl ketenes with 1-arylmethylidenepyrazolidin-1-azomethine imines, generated by the diaziridine ring opening
in 6-aryl-1,5-diazabicyclo[3.1.0]hexanes catalyzed with Et2O·BF3, leads to 1,2-bis(phenylacetyl)pyrazolidine, 2-arylacetyl-1-arylidenepyrazolidin-1-ium
chlorides, or a representative of 1,5-diazabicyclo[3.3.0]octan-2-ones, viz., 4-(4-eth-oxyphenyl)-3,3-diphenyl-1,5-diazabicyclo[3.3.0]octan-2-one, depending on the reaction conditions and the structure
of the starting compounds. A mechanism suggested earlier for the transformation of 1,5-diazabicyclo[3.1.0]hexanes in the reaction
with ketenes was confirmed. 相似文献
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Syroeshkina Yu. S. Fershtat L. L. Kachala V. V. Kuznetsov V. V. Makhova N. N. 《Russian Chemical Bulletin》2010,59(8):1621-1630
Reactions of 1,3-diphenylpropen-2-one and α-nitrostyrenes with azomethine imines, generated from 6-aryl-1,5-diazabicyclo[3.1.0]hexanes
on catalysis with Et2O•BF3 in ionic liquids, were found to proceed with high regio- and stereoselectivity to afford the products
of the diaziridine ring expansion, viz., [3-aryl-2-phenyltetrahydro-1H,5H-pyrazolo[1,2-a]pyrazol- 1-yl](phenyl)methanones, 1,3-diaryl-2-nitrotetrahydro-1H,5H-pyrazolo[1,2-a]pyrazoles and 5-aryl-6-(3-nitrophenyl)-2,3-dihydro-1H-pyrazolo[1,2-a]pyrazolium tetrafluoroborates (hexafluorophosphates). The reactions discovered are new, more simple methods for the syn-
thesis of bicyclic structures. 相似文献
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