Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Aleksandr M. Pinchuk"'
Autor:
Aleksandr A. Yurchenko, Aleksandr N. Kostyuk, Aleksandr M. Pinchuk, Anatoliy Marchenko, Georgyi Koidan, Anastasiya Hurieva, A. S. Merkulov
Publikováno v:
Tetrahedron. 66:3668-3677
C -Phosphorylated (P V ) arylformamidines have been prepared by the reaction of N -arylamidotrichloromethyl derivatives of phosphorus, thiophosphorus, and selenophosphorus acids with secondary amines. Dependence of the reaction on the nature of chalc
Autor:
Peter G. Jones, Aleksandr N. Kostyuk, Aleksandr M. Pinchuk, Dmitriy M. Volochnyuk, Tatyana E. Shubina, Dmitriy A. Sibgatulin, Reinhard Schmutzler
Publikováno v:
Journal of Fluorine Chemistry. 131:190-199
The reaction of linear push–pull enamines bearing a methyl group at the α-position with a set of trifluoromethylated carbonyl compounds was investigated. It has been found that the reaction proceeds at the methyl group of the enamines. The first c
Autor:
Anatoliy Marchenko, Aleksandr M. Pinchuk, Aleksandra A. Chaykovskaya, Oleg V. Shishkin, Radomyr V. Smaliy, Andrey A. Tolmachev, Georgiy K. Koydan
Publikováno v:
European Journal of Inorganic Chemistry. 2008:3348-3352
A previously unknown type of 1,3,2λ5-benzodiazaphosphinin-4(3H)-ones was obtained by intramolecular heterocyclization of novel N-arylphosphinimidic isocyanates. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)
Publikováno v:
Heteroatom Chemistry. 19:93-96
Phosphorylation of N-trimethylsilyl- and N-dimethyl-tert-butylsilylpyrroles with phosphorus tribromide in pyridine proceeds selectively at position 3 of the pyrrole ring. Removal of the trialkylsilyl protecting group has furnished the first represent
Autor:
Andrei A. Tolmachev, Aleksandr M. Pinchuk, Yurii V. Dmitriv, Aleksandra A. Chaikovskaya, Sergei P. Ivonin
Publikováno v:
Heteroatom Chemistry. 16:599-604
The investigation concerns the effect of a bulky substituent at the pyrrole nitrogen atom on the orientation and regioselectivity of pyrrole phosphorylation with phosphorus(III) halides. As shown, phosphorylation of N-iso-propylpyrrole with phosphoru
Autor:
Aleksandr M. Pinchuk, Aleksandr A. Yurchenko, Evgenij V. Zarudnitskii, Anatolij S. Merkulov, Marina Semenova, Andrej A. Tolmachev
Publikováno v:
Heteroatom Chemistry. 16:648-655
The reaction of phosphorus(III) halides with 6-substituted imidazo[2,1-b]thiazoles in the presence of bases proceeds regioselectively and affords 5-phosphinoimidazo[2,1-b]thiazoles, useful synthons for the preparation of various P(III) and P(V) deriv
Publikováno v:
Synthesis. :2525-2529
A study on the stepwise hydrolysis of hetarene- and cycloalkenecarboxamidophosphoryl dichlorides afforded the synthesis of hitherto unknown hetarene- and cycloalkene-carboxamidophosphoric acids as well as allowing the introduction of unsubstituted ca
Autor:
Aleksandr M. Pinchuk, Viktor N. Serdyuk, Sergei P. Ivonin, Svetlana D. Kopteva, Andrei A. Tolmachev
Publikováno v:
Heteroatom Chemistry. 12:652-657
This study covers phosphorylation of heterocyclic analogues of N-methyldiphenylamine with phosphorus tribromide in pyridine solution. The reaction is found to proceed regioselectively in accordance with the orienting effect of the amino group. Mono a
Autor:
Tatiana E. Terikovska, Aleksandr M. Pinchuk, Tamara N. Kudrya, Andrei A. Tolmachev, Sergei P. Ivonin, Alksandra A. Chaikovshaya
Publikováno v:
Heteroatom Chemistry. 10:223-230
Autor:
Aleksandr M. Pinchuk, Vladimir V. Ivanov, Aleksandr A. Yurchenko, Marina Semenova, Andrej A. Tolmachev, Anatolij S. Merculov, Evgenij V. Zarudnitskii
Publikováno v:
Heteroatom Chemistry. 10:585-597
Phosphorylation of 1-alkyl substituted imidazoles and benzimidazoles with P(III) halides in pyridine was shown to proceed at the 3-N atom of the heteroaryl ring and was followed by triethylamine-in- duced migration of the phosphorus group to the 2-C