Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Sergey I. Sviridov"'
Autor:
Michael J. Stocks, Stuart Lang, Lyubov M. Utkina, Dmitriy S. Chekmarev, Sergey I. Sviridov, Jeffrey P. Stonehouse, Garry Pairaudeau, Neal Smith, Natalya V. Ivanova
Publikováno v:
Synlett. 2008:100-104
The palladium-catalysed four-component coupling of a halide, terminal alkyne, molybdenum hexacarbonyl and either a hydrazine or amidine has been shown to be an efficient method for the construction of highly substituted pyrazoles and pyrimidines, res
Publikováno v:
Tetrahedron. 63:12195-12201
Isoxazoles bearing alkyl or carbamoyl groups were transformed into the corresponding pyrazoles in high yields by the treatment with hydrazine in methanol in the presence of a hydrogenation catalyst, e.g., Raney nickel, at ambient temperature. For the
Autor:
Andrei A. Vasil'ev, Sergey V. Shorshnev, Sergey I. Sviridov, Natalia L. Sergovskaya, Marina V. Chirskaya
Publikováno v:
Tetrahedron. 62:2639-2647
Arylboronic acids having a remote azido group were prepared from the corresponding azidosubstituted aryl bromides via lithiation and treatment with trialkyl borates. Preparative yields were achieved when the starting aryl bromides possessed ortho-alk
Publikováno v:
Synthesis. 2006:156-160
A convenient approach to 4,5-disubstituted 3-hydroxymethyl-1.2.4-triazoles as well as to the corresponding 3-chloromethyl and 3-carboxaldehyde derivatives was developed starting from 3-mercapto-1,2,4-triazoles which can, in turn, be readily obtained
Autor:
Grigory G. Aleksandrov, Sergey V. Shorshnev, Sergey I. Sviridov, Aleksandr E. Stepanov, Tatyana V. Lukina
Publikováno v:
Tetrahedron Letters. 47:51-54
2,4,7-Trisubstituted hydrogenated pyrazino[1,2-a]pyrazines as potential β-turn mimetics were prepared for the first time in a stereoselective synthesis from hexahydro[1,2,3]triazolo[1,5-a]pyrazines.
Publikováno v:
Tetrahedron Letters. 47:8025-8027
A solution-phase synthesis for the preparation of substituted 2-(1,2,4-triazol-3-yl)benzimidazoles from triazole aldehydes and ortho-phenylenediamines has been developed for the purpose of producing diverse lead generation libraries. Crude products w
Autor:
Aleksandr E. Stepanov, Sergey I. Sviridov, Grigory G. Alexandrov, Sergey V. Shorshnev, Tatjana V. Lukina
Publikováno v:
Tetrahedron Letters. 46:1205-1207
An intramolecular [2+3]-cycloaddition of an azide to a C C double bond was carried out to obtain hexahydro[1,2,3]triazolo[1,5- a ]pyrazines. These compounds were used as intermediates to prepare 2-(halogenomethyl)piperazines that could serve as precu
Autor:
Sergey V. Shorshnev, Sergey I. Sviridov, Natalia L. Sergovskaya, Andrei A. Vasil'ev, Marina V. Chirskaya
Publikováno v:
Tetrahedron Letters. 45:8811-8813
Substituted 3-bromotetrahydrofurans were prepared from homoallylic alcohols via bromination and cyclization in methanol in the presence of potassium carbonate.
Publikováno v:
ChemInform. 39
Isoxazoles bearing alkyl or carbamoyl groups were transformed into the corresponding pyrazoles in high yields by the treatment with hydrazine in methanol in the presence of a hydrogenation catalyst, e.g., Raney nickel, at ambient temperature. For the
Publikováno v:
ChemInform. 37
A convenient approach to 4,5-disubstituted 3-hydroxymethyl-1.2.4-triazoles as well as to the corresponding 3-chloromethyl and 3-carboxaldehyde derivatives was developed starting from 3-mercapto-1,2,4-triazoles which can, in turn, be readily obtained