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E. S. Vostrov A. A. Novikov A. N. Maslivets Z. G. Aliev 《Russian Journal of Organic Chemistry》2007,43(2):224-227
2-Carboxyphenylamides of aroylacetic acids undergo cyclization when treated with dehydrating agents to give 2-[(Z)-2-aryl-2-hydroxy-1-ethenyl]-4H-3,1-benzoxazin-4-ones. Crystal and molecular structure of the latter phenyl derivative was studied by X-ray crystallography.
Original Russian Text ? E.S. Vostrov, A.A. Novikov, A.N. Maslivets, Z.G. Aliev, 2007, published in Zhurnal Organicheskoi Khimii,
2007, Vol. 43, No. 2, pp. 232–235. 相似文献
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E. S. Vostrov E. V. Leont'eva O. P. Tarasova A. N. Maslivets 《Russian Journal of Organic Chemistry》2004,40(7):1058-1061
Thermal decarbonylation of 5-aryl-4-phenyl-2,3-dihydrofuran-2,3-diones gives rise to intermediate aroyl(phenyl)ketenes which react with nonactivated Schiff bases, N,N'-dicyclohexylcarbodiimide, and p-di-methylaminobenzonitrile according to the [4 + 2]-cycloaddition pattern with formation of 6-aryl-5-phenyl-4H-1,3-oxazin-4-ones. Reactions of 5-aryl-4-phenyl-2,3-dihydrofuran-2,3-diones with activated Schiff bases at a temperature below the thermolysis temperature lead to 4-aroyl-4-phenyltetrahydropyrrole-2,3-diones. 相似文献
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G. N. Vostrov A. I. Gren' A. V. Bogat-skii I. B. Gernega V. P. Teptya Yu. P. Adler 《Chemistry of Heterocyclic Compounds》1974,10(9):1032-1037
The possibility of the use of the method of correlation pleiads for the isolation of the absorption regions in the IR spectra of substituted 1,3-dioxanes in which the characteristic absorption bands for the individual stereoisomers of the substances appear was studied. It is shown that the configurations of the investigated compounds can be determined on the basis of the characteristic absorption bands by instructing a computer to distinguish forms. 相似文献
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V. K. Vostrov 《Journal of Applied Mechanics and Technical Physics》1971,12(4):578-582
We consider the axisymmetric problem of determination of the stress-strain state in an elastic half-space in the case of a circular line of separation of the boundary conditions on the boundary plane z = 0. We assume that on the entire boundary z = 0 the tangential stress rz = 0, while inside the circle r a (z = 0) the normal displacement uz is known and in its exterior the normal stress z is given. In addition, we assume that body forces are acting in the half-space. The investigation of problems of similar kind presents interest in connection with the application of A. A. Il'yushin's method of elastic solutions to the problem of the indentation of punches into a nonlinear-elastic, in particular, into an elastoplastic half-space.Translated from Zhurnal Prikladnoi Mekhaniki i Tekhnicheskoi Fiziki, No. 4, pp. 110–115, July–August, 1971.The author wishes to thank M. Ya. Leonov for his valuable suggestions during the preparation of this paper. 相似文献
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