Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Andrey S. Plaskon"'
Autor:
Andrey S. Plaskon, Sergey V. Ryabukhin, Oleg Lukin, Alexander Shivanyuk, Dmitriy M. Panov, Evgeniy N. Zarudnitskiy
Publikováno v:
Synthesis. 46:2079-2084
A total of 20 α-aminophosphonic acids are synthesized in 73–89% yields via a one-pot, three-step procedure involving chlorotrimethylsilane-promoted condensation of carbonyl compounds and primary amines yielding azomethine intermediates, subsequent
Autor:
Alexander Shivanyuk, Dmitriy M. Volochnyuk, Dmitry S. Granat, Sergey V. Ryabukhin, Andrey S. Plaskon
Publikováno v:
Synlett. 24:2675-2678
Twenty-five diverse pyrazolo[3,4- d ]-4,5-dihydropyrimidines were synthesized in 73–91% yield through TMS-promoted [5+1] heterocyclization of aldehydes with pyrazolylamidines.
Autor:
Sergey V. Ryabukhin, Andrey S. Plaskon, Andrey A. Tolmachev, Oleksandr O. Grygorenko, Eugeniy N. Ostapchuk
Publikováno v:
Journal of Heterocyclic Chemistry. 50:1299-1303
Chlorotrimethylsilane-promoted Biginelli-type reaction of benzaldehyde, acetoacetic acid derivatives, and various carboxyl-containing ureas was explored. It was found that the steric load of the urea substituents influenced strongly the reaction outc
Autor:
Andrey A. Tolmachev, Sergey V. Ryabukhin, Alexander Shivanyuk, Dmitriy M. Panov, Sergey E. Pipko, Andrey S. Plaskon, Alexander Chuprina
Publikováno v:
Molecular Diversity. 16:625-637
128 Azomethines were synthesized through condensation of carbonyl compounds with various amines in pyridine in the presence of Me(3)SiCl as promoter and water scavenger in 58-98 % yield. Et(3)N was added to reaction mixtures before precipitating the
Autor:
Alexander Shivanyuk, Dmitry S. Granat, Andrey S. Plaskon, Sergey V. Ryabukhin, Andrey A. Tolmachev, Yulian M. Volovenko
Publikováno v:
ACS Combinatorial Science. 14:465-470
Thirteen 5-hetarylaminopyrazoles were synthesized in 62-93% yield through the arylation of 1-isopropyl- and 1-phenyl-5-aminopyrazoles with electrophilic hetarylhalides under optimized conditions. Condensation of 5-hetarylaminopyrazoles with carbonyl
Autor:
Radomyr V. Smaliy, Andrey A. Tolmachev, Dmitriy M. Panov, Andrey S. Plaskon, Sergey V. Ryabukhin
Publikováno v:
Monatshefte für Chemie - Chemical Monthly. 143:1507-1517
Chlorotrimethylsilane has been found to be an efficient condensing agent in the Pictet–Spengler reaction, affording an extremely straightforward synthetic route to tetrahydro-β-carboline derivatives and their analogs. The applicability of the meth
Publikováno v:
Tetrahedron. 68:2743-2757
Autor:
Andrey A. Tolmachev, Sergey V. Ryabukhin, Semen S. Bondarenko, Eugeniy N. Ostapchuk, Oleksandr O. Grygorenko, Andrey S. Plaskon, Oleg V. Shishkin
Publikováno v:
Tetrahedron Letters. 51:4229-4232
Chlorotrimethylsilane-promoted Biginelli-type reaction of ethyl 2,4-dioxo-4-phenylbutanoate, benzaldehyde, and various (thio)ureas is explored. The outcome of the reaction depends on the structure of the (thio)urea used and is strongly affected by th
Autor:
Oleksandr O. Grygorenko, Dmitriy M. Volochnyuk, Alexei Pushechnikov, Andrey S. Plaskon, Andrey A. Tolmachev, Pavel K. Mykhailiuk, Dmitriy G. Krotko, Yuri V. Dmytriv, Sergey V. Ryabukhin
Publikováno v:
Journal of Combinatorial Chemistry. 12:510-517
A library of fused pyridine-4-carboxylic acids (including pyrazolo[3,4-b]pyridines, isoxazolo[5,4-b]pyridines, furo[2,3-b]pyridines, thieno[2,3-b]pyridines, and pyrido[2,3-d]pyrimidines) was generated by Combes-type reaction of acyl pyruvates and ele
Autor:
Sergey Yu. Boron, Dmitriy M. Volochnyuk, Andrey S. Plaskon, Andrey A. Tolmachev, Sergey V. Ryabukhin
Publikováno v:
Molecular Diversity. 15:189-195
Chlorotrimethylsilane (TMSCl) has been utilized as an efficient promoter and water scavenger in the synthesis of diverse dihydropyrimidines via Biginelli type MCR-heterocyclization using aminoheterocycles. High yields and a simple workup of target co