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1.
O. V. Firsova T. S. Dolgushina V. A. Polukeev E. M. Ioannisyan V. E. Zavodnik A. I. Stash V. K. Bel’skii V. A. Galishev 《Russian Journal of Organic Chemistry》2005,41(5):762-768
Reactions of thiazoline-2-thione with C,N-disubstituted nitrile imines were investigated. The reaction products are substituted 2-(1,3,4-thiadiazol-2-ylideneamino)ethanethiols and bis[2-(1,3,4-thiadiazol-2-ylideneamino)ethyl] disulfides. The reaction of thiazoline-2-thione with a double excess of nitrile imine did not considerably change the process route. The structure of compounds obtained was proved by X-ray diffraction analysis. A presumable scheme is given describing the formation of compounds obtained.__________Translated from Zhurnal Organicheskoi Khimii, Vol. 41, No. 5, 2005, pp. 776–782.Original Russian Text Copyright © 2005 by Firsova, Dolgushina, Polukeev, Ioannisyan, Zavodnik, Stash, Bel’skii, Galishev. 相似文献
2.
D. V. Krivorotov M. V. Vorob’ev V. A. Polukeev E. N. Glibin 《Russian Journal of Organic Chemistry》2006,42(4):577-579
papaverine and its derivatives react with p-chlorophenacyl bromide to give the corresponding quaternary salts, which are converted into pyrrolo[2,1-a]isoquinolines by the action of bases. 相似文献
3.
A. S. Mikherdov N. Yu. Tiuftiakov V. A. Polukeev V. P. Boyarskii 《Russian Journal of General Chemistry》2018,88(4):713-720
The coupling of bis(xylylisocyanide) complex of Pd(II) with 1,2,4-thiadiazole-5-amines leads to the formation of an equilibrium mixture of the binuclear complexes. In each of the studied cases, one of the formed complexes is the kinetic product, and the other one is the thermodynamic product. The complexes which are thermodynamic products have been isolated in the pure form and characterized by means of high-resolution mass spectrometry, IR and NMR spectroscopy, and X-ray diffraction analysis. NMR study of the regioisomerization in a solution has revealed that the relative stability of the thermodynamic products in comparison with the kinetic ones is higher than for the corresponding regioisomers containing 1,3-thiazole or 1,3,4- thiadiazole fragment. 相似文献
4.
Dr. Alexey V. Polukeev 《欧洲无机化学杂志》2023,26(31):e202300351
Synthesis, characterization and catalytic activity of cyclometalated iridium complexes with a bidentate POC ligand is presented. Metalation of POC-H (di-tert-butyl(phenoxy)phosphane) with [Ir(COD)Cl]2 proceeded rapidly at room temperature and afforded mixture of (POC)(POC-H)IrHCl ( 1 a ) and (POC)(COD)IrHCl ( 1 b ), from which complexes (POC)(L)IrHCl where L=PPh3 ( 1 c ), bipyridine ( 1 d ) and [2,2′-bipyridine]-6,6′-diol ( 1 e ) were prepared through ligand exchange. The compounds were tested in acceptorless dehydrogenation of 1-phenylethanol and transfer dehydrogenation of ethanol in a context of comparison with pincer counterparts (POCOP)IrHCl and (PCN)IrHCl. An attempt to prepare a dihydride complex from 1 e led to dimeric complex [(POC)(bipy-diol−)IrH]2 ( 3 ) that could explain the low activity of 1 e . DFT studies provided insight into POC-H vs POCOP-H metalation mechanism. 相似文献
5.
Knyazev Yu. V. Kazak N. V. Gavrichkov V. A. Polukeev S. I. Ovchinnikov S. G. 《JETP Letters》2022,116(8):567-573
JETP Letters - Changes in the magnetic properties of FeBO3 single crystals in the course of spin crossover occurring with increasing pressure up to 63 GPa are studied both experimentally and... 相似文献
6.
A. V. Polukeev S. A. Kuklin P. V. Petrovskii A. S. Peregudov F. M. Dolgushin M. G. Ezernitskaya A. A. Koridze 《Russian Chemical Bulletin》2010,59(4):745-749
Iridium pincer complexes [C6H3-2,6-(OPBut
2)2]Ir(H)Cl (10) and [4-EtOOCC6H2-2,6-(OPBut
2)2]Ir(H)Cl (11) react with protic acids undergoing metallation of one of the tert-butyl groups to form double cyclometallated products [4-R-C6H2-2-(OPBut
2)-6-(OP(But)CMe2CH2)]IrCl (12, R = H; 13, R = COOEt), which are stable in air. Complex 12 reacts with CO and ButNC giving the corresponding 18-electron complexes [C6H3-2-(OP-But
2)-6-(OP(But)CMe2CH2)]Ir(L)Cl (14, L = CO; 15, L = CNBut). The structure of compound 14 was established by X-ray diffraction analysis. 相似文献
7.
T. Sh. Khaibulova I. A. Boyarskaya V. A. Polukeev V. P. Boyarskii 《Russian Journal of General Chemistry》2016,86(10):2318-2324
Regioselectivity of the methanolysis of lower polychlorinated biphenyls with sodium methoxide in a mixture of methanol and DMSO at 100–130°С was studied. It was found that 2,4,4'-tricholobiphenyl is much more reactive than 2,4-dichlorobiphenyl. This results in different mechanisms of substitution. 2,4-Dichlorobiphenyl reacts with sodium methoxide by the elimination–addition mechanism to form four monosubstitution products in comparable quantities. 2,4,4'-Trichlorobiphenyl reacts with the methodixe ion by the classical SNAr mechanism, with preferential substitution of the 2-chlorine atom. 相似文献
8.
E. P. Doronina L. M. Pevzner V. A. Polukeev M. L. Petrov 《Russian Journal of General Chemistry》2018,88(2):241-250
Methods of synthesis of 4-functionalyzed (5-trifluoromethylfur-2-yl)methanephosphonates and (5-methyl-2-trifluoromethylfur-3-yl)methanephosphonate are developed. Their formylation with ethyl formate in the presence of sodium foil is studied. Spectral characteristics of tautomers of obtained derivatives of phosphonoacetic aldehyde are evaluated. It is shown that interaction of obtained formyl derivatives with ethoxycarbonylmethylenetriphenylphosphorane regardless of the structure of the furan fragment leads to 4-furylsubstituted alkyl 4-(diethoxyphosphoryl)but-3-enoate, the abnormal product of Wittig reaction. 相似文献
9.
S. B. Volkova O. V. Platonova V. G. Tsypin V. A. Polukeev 《Russian Journal of General Chemistry》2008,78(9):1719-1727
Adamantylation of mono-and dinitro-substituted aromatic amines in sulfuric and phosphoric acids and in a mixture of phosphoric and acetic acids gives mainly the corresponding N-adamantyl derivatives. The results of kinetic measurements showed reversible character of the process. 相似文献
10.
D. M. Panov A. V. Polezhaev A. V. Polukeev P. V. Petrovskii A. A. Koridze 《Russian Chemical Bulletin》2010,59(11):2098-2101
The alkylation of imidazole and 5-benzyloxycarbonyl-3,4-diethylpyrrole with 1,3-bis-(hydroxymethyl)ferrocene (1) afforded bis-imidazole (4) and bis-pyrrole (7) derivatives of ferrocene, respectively. The reaction of diol 1 with trifluoroacetic acid gave the dicarbocationic complex [{1,3-(CH2)2C5H3}Fe(C5H5)]2+ (2) characterized by 1H NMR spectroscopy. 相似文献