Výsledky vyhledávání - "Aleksandra A. Chaikovskaya"

A Simple Approach to Vicinal Pyrrolylphosphane Aldehydes

Autor: Yurii Vlasenko, Aleksandr A. Savateev, A. N. Kostyuk, Nataliya A. Shtil, Aleksandra A. Chaikovskaya, Radomyr V. Smaliy

Publikováno v: Heteroatom Chemistry. 26:91-100

A simple approach to vicinal pyrrolylphosphane aldehydes was developed. The reaction of Alder's dimer 1 with a set of pyrrolylphosphane derivatives—its oxides, sulfides, and selenides—was studied in detail. While Alder's dimer reacted with phosph

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https://doi.org/10.1002/hc.21219

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N → C3migration of dichlorophosphino group in the phosphorylation of N-unsubstituted indole with phosphorus trichloride

Autor: Yurii V. Dmytriv, Aleksander M. Pinchuk, Nadiya V. Shevchuk, Radomyr V. Smaliy, Andrey A. Tolmachev, Aleksandra A. Chaikovskaya

Publikováno v: Heteroatom Chemistry. 20:235-239

A N C3 migration of the dichlorophosphino group has been revealed in the phosphorylation of unsubstituted indole with phosphorus trichloride. Several 3-phosphorylated NH-indole derivatives have thus been obtained and N-acylation of one of the product

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https://doi.org/10.1002/hc.20540

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N → C2→ C3migration of the dichlorophosphino group in the synthesis of phosphorylated NH-pyrroles

Autor: Yurii V. Dmytriv, Radomyr V. Smaliy, Andrey A. Tolmachev, Nadiya V. Shevchuk, Aleksandra A. Chaikovskaya, Aleksander M. Pinchuk

Publikováno v: Heteroatom Chemistry. 19:671-676

A successive N C2 C3 migration of the dichlorophosphino group has been found to occur in phosphorylation of unsubstituted pyrrole with phosphorus trichloride. As a result of this migration, a number of hitherto unknown C-phosphorylated N-unsubstitute

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https://doi.org/10.1002/hc.20495

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IntramolecularC-thiocarbamoylation of aroxy(isothiocyanato)phosphonium salts

Autor: Andrei A. Tolmachev, Alexander M. Pinchuk, R. V. Smalii, Anatoliy Marchenko, Y. N. Koidan, Aleksandra A. Chaikovskaya

Publikováno v: Heteroatom Chemistry. 19:667-670

Isothiocyanatophosphonium salts bearing an aroxy group at the phosphorus atom have been obtained for the first time. As found, these compounds undergo an intramolecular heterocyclization to give hitherto unknown benzoxazaphosphininethiones or cyanoim

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https://doi.org/10.1002/hc.20491

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Phosphorylation ofN-Silylpyrroles with Phosphorus Tribromide

Autor: Aleksandr M. Pinchuk, Yurii V. Dmytriv, Andrei A. Tolmachev, Aleksandra A. Chaikovskaya

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

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https://doi.org/10.1002/hc.20416

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Phosphorylation ofN-iso-propyl- andN-tert-butylpyrroles with phosphorus(III) halides

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

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https://doi.org/10.1002/hc.20158

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Isocyanatophosphoryl Dichloride as Reagent for Introduction of Carbamoyl Group into Molecules of π-Excessive Heterocycles and Enamines

Autor: Aleksandr M. Pinchuk, Aleksandra A. Chaikovskaya, Radomir V. Smaliy, Andrei A. Tolmachev

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

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https://doi.org/10.1055/s-2003-42404

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C-acylation of electron-rich heterocyclic compounds with Kirsanov isocyanate

Autor: Tamara N. Kudrya, Andrei A. Tolmachev, Radomir V. Smaliy, Aleksandra A. Chaikovskaya, Aleksandr A. Yurchenko, Aleksandr M. Pinchuk

Publikováno v: Heteroatom Chemistry. 10:343-348

Pyrroles, indoles, indolizines, and 2-methylfuran are vigorously C-acylated with isocyanatophosphoryl dichloride. The resulting heteroaryl-substituted isocyanatophosphoryl dichlorides provide a convenient access to a variety of products.© 1999 John

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https://doi.org/10.1002/(sici)1098-1071(1999)10:4<343::aid-hc14>3.0.co

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ChemInform Abstract: C-Acylation of Electron-Rich Heterocyclic Compounds with Kirsanov Isocyanate

Autor: Aleksandr M. Pinchuk, Tamara N. Kudrya, Andrei A. Tolmachev, Aleksandra A. Chaikovskaya, Aleksandr A. Yurchenko, Radomir V. Smaliy

Publikováno v: ChemInform. 30

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https://doi.org/10.1002/chin.199934089

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