Zobrazeno 1 - 8
of 8
pro vyhledávání: '"V. V. Esenbaeva"'
Publikováno v:
Russian Journal of General Chemistry. 89:1927-1930
The reactions of 2-, 3-, 4-aminopyridines or 4-aminoquinoline with hydrolytically stable tropylium salts (perchlorate or tetrafluoroborate) have afforded N-(1′-cyclohepta-2′,4′,6′-trienyl)-2-aminopyridine, N-(1′-cyclohepta-2′,4′,6′-tr
Publikováno v:
Russian Journal of General Chemistry. 88:2691-2694
The reactions of tropylium salts with 2,5-diamino-1,3,4-thiadiazol, 3,5-diamino-1,2,4-thiadiazol, and 2,6-diaminopyridine have given novel products of substitution of hydrogen atoms of two amino groups in thiadiazols and of hydrogen atoms at С3 and
Autor:
L. P. Yunnikova, V. V. Esenbaeva
Publikováno v:
Russian Journal of Organic Chemistry. 54:1018-1022
Tropylium, xanthylium, and tritylium salts characterized by different stabilities differently reacted with biologically active amines. The reactions of tropylium perchlorate and tetrafluoroborate with 4-(cyclohepta-2,4,6-trien-1-yl)aniline was accomp
Autor:
L. P. Yunnikova, V. V. Esenbaeva
Publikováno v:
Russian Journal of Organic Chemistry. 55:1982-1984
Nicotinic, isonicotinic, and furan-2-carboxylic acid hydrazides reacted with 2 equiv of tropylium perchlorate or tetrafluoroborate to give the corresponding N′N′-di(cyclohepta-2,4,6-trein-1-yl) derivatives as a result of electrophilic substitutio
Publikováno v:
Russian Journal of Organic Chemistry. 55:1985-1987
Reactions of thioxanthylium tetrafluoroborate with pharmacophoric heterocyclic amines, pyrimidin-2-amine, 4,6-dimethylpyrimidin-2-amine, 2-aminopyrimidine-4,6-diol, and 1,3,4-thiadiazole-2,5-diamine, gave stable products of electrophilic substitution
Autor:
V. V. Esenbaeva, L. P. Yunnikova
Publikováno v:
Russian Journal of General Chemistry. 88:829-831
By the reaction of urea, thiourea, sulfanilamide or sulfadimethoxine with tropylium tetrafluoroborate new products of substitution of hydrogen atom by the tropylium motif at the amide nitrogen atom or at the amino group of the benzene ring have been
Autor:
L. P. Yunnikova, V. V. Esenbaeva
Publikováno v:
Russian Journal of General Chemistry. 86:1769-1771
Autor:
L. P. Yunnikova, V. V. Esenbaeva
Publikováno v:
Russian Journal of Organic Chemistry. 50:1697-1698
In this case the reaction of [4+2]-cycloaddition occurred where the Schiff base acted not like a dienophile [4] but like a diene, and the 1,2diphenylcyclopropene was the ene component of the reaction. The formation of compound III proceeds presumably