Zobrazeno 1 - 10
of 137
pro vyhledávání: '"Shizen Sekiguchi"'
Publikováno v:
ChemInform. 25
Arabinoaminooxazoline reacted readily with α-(bromomethyl)acrylate derivatives to afford the corresponding adduct. Potassium tert-butoxide- or sodium methoxide-catalyzed cyclization of the adduct gave 5-substituted 2,2′-anhydroarabinofuranosylurac
Autor:
Shizen Sekiguchi, Akiko Nakamura, Masakazu Endoh, Hiroaki Sawai, Hiroaki Ozaki, Keisuke Yumoto
Publikováno v:
ChemInform. 26
5-Substituted uracil nucleosides useful for the attachment of linker arms to nucleic acids are prepared from arabinoaminooxazoline and dimethyl α-bromomethylfumarate in a short reaction sequence without using any protecting groups, and incorporated
Publikováno v:
The Journal of Organic Chemistry. 55:1829-1834
Publikováno v:
Tetrahedron. 46:5567-5578
In the reactions of 1-d1a1kylamino-2,4,6-trinitro- and 1-dialkylam1no-2, 4-dinitrobenzenes with various amines in dimethyl sulfoxide, 1-dialkylamino group is easily replaced with primary n-alkylamines at room temperature, and in a low yield with pyrr
Publikováno v:
ChemInform. 21
Publikováno v:
ChemInform. 21
Publikováno v:
ChemInform. 21
The title compounds 3 were prepared in low yields from the carbylamine reaction of amino-1,3,5-triazines 1 under phase-transfer conditions. Isocyanotriazine 3a readily reacted with amines in the presence of copper salts to afford triazinylformamidine
Publikováno v:
Chemistry Letters. 23:605-606
Arabinoaminooxazoline reacted readily with α-(bromomethyl)acrylate derivatives to afford the corresponding adduct. Potassium tert-butoxide- or sodium methoxide-catalyzed cyclization of the adduct gave 5-substituted 2,2′-anhydroarabinofuranosylurac
Autor:
Akiko Nakamura, Hiroaki Ozaki, Shizen Sekiguchi, Keisuke Yumoto, Masakazu Endoh, Hiroaki Sawai
Publikováno v:
Journal of the Chemical Society, Chemical Communications. :1997
5-Substituted uracil nucleosides useful for the attachment of linker arms to nucleic acids are prepared from arabinoaminooxazoline and dimethyl α-bromomethylfumarate in a short reaction sequence without using any protecting groups, and incorporated
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1111
The nucleophilic substitution reaction of butylamine with 1-pyrrolidino-2,4-dinitronaphthalene (1a) in dimethyl sulfoxide is subject to general base catalysis, whereas the reaction of the same amine with 1-piperidino-(1b) or 1-dimethylamino-2,4-dinit