Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Tung Q. Tran"'
Autor:
Alexander V. Stepakov, Alexander P. Molchanov, Vladislav V. Gurzhiy, Rafael R. Kostikov, Tung Q. Tran, Julia Malinina, Galina L. Starova
Publikováno v:
Tetrahedron Letters. 55:3663-3666
The first example of 1,3-dipolar cycloaddition reactions of nitrones with arylallenes is described. C-Carbamoylnitrones react with the C1C2 double bond of arylallenes affording the corresponding 4-methyleneisoxazolidines in good yields. N-Aryl-C,C-bi
Autor:
Alexander P. Molchanov, Tung Q. Tran
Publikováno v:
Chemistry of Heterocyclic Compounds. 49:479-483
C-Carbamoylnitrones add regio- and stereoselectively to 1-benzylidene-3,3-dichloro-2,2-dimethyl-cyclopropane with the formation of one diastereomer of 4-spirocyclopropaneisoxazolidine.
Publikováno v:
Russian Chemical Bulletin. 61:871-876
C,N-diarylnitrones and C-amido-N-arylnitrones add diastereoselectively to the substituted arylpropenones to give the substituted isoxazolidine possessing 3RS,4SR,5SR configuration. Replacement of the aryl groups either in the position 3 of chalcone o
Autor:
Vyacheslav V. Diev, Alexander P. Molchanov, Tung Q. Tran, Vladislav V. Gurzhiy, Galina L. Starova
Publikováno v:
European Journal of Organic Chemistry. 2012:2054-2061
A new reaction cascade to give tricyclic cores of 2,4-dihydro-1H-azeto[1,2-a]quinolines (benzocarbacephems) and pyrrolo[1,2-a]quinolines starting from acyclic N-aryl ketonitrones and acceptor ring substituted methylenecyclopropanes has been reported.
Publikováno v:
Russian Chemical Bulletin. 60:2296-2300
Cyclic nitrones, viz., tetrahydropyridine 1-oxide, 3,4-dihydroisoquinoline 2-oxide, and 2-methoxycarbonyl-4,5-dihydro-3H-pyrrole 1-oxide, regioselectively add to dimethyl 3-methylidenecyclopropane-1,2-dicarboxylate to form 5-spirocyclopropaneisoxazol
Publikováno v:
Tetrahedron. 67:2391-2395
1,3-Dipolar cycloadditions of dimethyl 2-benzylidenecyclopropane-1,1-dicarboxylate and a number of C-aryl or C-amido nitrones proceed with high efficiency and selectivity with the formation of only one isomeric spiro[cyclopropane-1,4-isoxazolidine] c
Autor:
Alexander P. Molchanov, Tung Q. Tran
Publikováno v:
ChemInform. 44
C-Carbamoylnitrones add regio- and stereoselectively to 1-benzylidene-3,3-dichloro-2,2-dimethyl-cyclopropane with the formation of one diastereomer of 4-spirocyclopropaneisoxazolidine.
Publikováno v:
ChemInform. 44
Publikováno v:
ChemInform. 44
C,N-diarylnitrones and C-amido-N-arylnitrones add diastereoselectively to the substituted arylpropenones to give the substituted isoxazolidine possessing 3RS,4SR,5SR configuration. Replacement of the aryl groups either in the position 3 of chalcone o
Publikováno v:
ChemInform. 43
Cyclic nitrones regioselectively add to Feist′s acid dimethyl ester (II) yielding diastereoisomeric mixtures of isoxazolidines which are susceptible to thermal rearrangement reactions.