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Kisil' L. M. Osadchenko I. M. Tomilov A. P. 《Russian Journal of Applied Chemistry》2003,76(8):1356-1357
The behavior of PCl3 and PI3 solutions in acetonitrile containing no more than 0.02 wt % H2O in storage at room temperature was studied. 相似文献
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S. P. Kisil' M. I. Kodess Ya. V. Burgart V. I. Saloutin 《Russian Chemical Bulletin》2000,49(6):1090-1092
Ethyl acetoacetate was acylated with 3,4,5-trifluoro-2,6-dimethoxybenzoyl chloride to give, for the first time, ethyl 3-oxo-2-(3,4,5-trifluoro-2,6-dimethoxybenzoyl)butyrate and its copper chelate. The title compound was used for the synthesis of 6,7,8-trifluoro-5-hydroxy-2-methylchromone, 1-(3,4,5-trifluoro-2,6-dimethoxyphenyl)butane-1,3-dione, and its copper chelate. 相似文献
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Russian Journal of Electrochemistry - 相似文献
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V. V. Kisil' 《Mathematical Notes》1996,59(3):261-268
The paper is devoted to the study of the algebraic structure of local algebras of two-sided convolutions with singular kernels on the Heisenberg group. The composition law for triples equivalent to these convolution operators is established.Translated fromMatematicheakie Zametki, Vol. 59, No. 3, pp. 370–381, March, 1996.I thank Professor Vasilevskii for supervision of this work.This research was partially supported by the CONCACYT Foundation (Mexico) under grant No. 1821-E9211. 相似文献
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Kisil' S. P. Burgart Ya. V. Saloutin V. I. 《Russian Journal of Organic Chemistry》2001,37(10):1455-1462
For the first time were obtained ethyl 2-(2-methoxy-3,4,5,6-tetrafluorobenzoyl)-3-oxobutanoate and ethyl 2-pentafluorobenzoyl-3-oxobutanoate and their copper chelates. The compounds were prepared by acylation of ethyl acetoacetate with 2-methoxy-3,4,5,6-tetrafluoro- and pentafluorobenzoyl chlorides. Cyclization of these ,'-dioxoesters afforded substituted chromones. 2-Methyl-5-methoxy-6,7,8-trifluoro-3-ethoxycarbonylchromone hydrolyzes depending on reaction conditions either to 5-hydroxy-2-methyl-6,7,8-trifluorochromone or to 5-hydroxy-2-methyl-6,7,8-trifluorochromone-3-carboxylic acid. Reaction with morpholine provided 7-substituted product, and with aqueous ammonia as a result of rearrangement forms 3-acetimidoyl-4-hydroxy-5-methoxy-6,7,8-trifluorocoumarin. Hydrolysis of the latter yields 3-acetyl-4-hydroxy-5-methoxy-6,7,8-trifluorocoumarin. 相似文献
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I. T. Bazyl' S. P. Kisil' S. N. Frolov Ya. V. Burgart V. I. Saloutin 《Russian Chemical Bulletin》1999,48(8):1537-1541
The reactions of ethyl 5,6,7,8-tetrafluoro-2-methylchromone-3-carboxylate with mercaptoacetic acid and 1,2-ethanedithiol afforded
C(7)-substitution products. The above-mentioned chromone reacted with 2-mercaptoethanol to yield 7-mono- or 5,7,8-trisubstituted
products depending on the reaction conditions. The reaction of 3-acetimidoyl-5,6,7,8-tetrafluoro-4-hydroxycoumarin with 2-mercaptoethanol
afforded a 5,7,8-trisubstituted produect. The acyl-lactone rearrangement of mono- and trisubstituted chromones yielded the
corresponding coumarins.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 8, pp. 1557–1561, August, 1999. 相似文献