Zobrazeno 1 - 10
of 15
pro vyhledávání: '"I. A. Fedyunyaeva"'
Publikováno v:
Dyes and Pigments. 64:125-134
We investigate the reactions of mono-substituted squaraines with CH-acidic nucleophiles, heterocyclic methylene bases and thionating reagents. The reactions of mono-substituted squaraines with malononitrile, cyano- and nitroacetic esters, barbituric
Autor:
I. G. Ermolenko, Alexander V. Mazepa, O. S. Galkina, N. A. Popova, Leonid D. Patsenker, I. A. Fedyunyaeva, B. M. Krasovitskii, O. N. Lyubenko
Publikováno v:
Chemistry of Heterocyclic Compounds. 39:525-533
It has been shown that dimethylamino-substituted 2,5-diaryloxazoles and 2,5-diaryl-1,3,4-oxadiazoles undergo heterocyclization under Vilsmeier-Haack conditions with the participation of the dimethylamino group to form quinazolinium salts. The oxazole
Publikováno v:
Chemistry of Heterocyclic Compounds. 33:707-711
A comparison of the PMR spectra of 5-phenyl-2-methyl derivatives of oxazole, 1,3,4-oxadiazole, and 1, 3, 4-triazole with the spectrum of toluene leads to the conclusion that the electron-acceptor character of the heterocycles drops off in the order o
Publikováno v:
Chemistry of Heterocyclic Compounds. 32:285-289
Condensation of 4-(3, 5-diphenylpyrazol-1-yl)benzoyl chloride with hydrochlorides of ω-aminomethyl aryl ketones or aroyl hydrazines and subsequent cyclization of the condensation products in phosphorus oxychloride gave new effective luminophors. The
Autor:
I. A. Fedyunyaeva, V. M. Shershukov
Publikováno v:
Chemistry of Heterocyclic Compounds. 29:204-207
Condensation of 4-chlorosulfonyl- and 4-fluorosulfonyl-benzoyl chlorides with p-dimethylamino-α-aminoacetophenone followed by cyclodehydration of the resulting amides leads to the formation of 4-(5-dimethylaminophenyl-2-oxazolyl)benzenesulfonyl hali
Autor:
V. M. Shershukov, I. A. Fedyunyaeva
Publikováno v:
ChemInform. 25
Publikováno v:
ChemInform. 27
Publikováno v:
ChemInform. 29
A comparison of the PMR spectra of 5-phenyl-2-methyl derivatives of oxazole, 1,3,4-oxadiazole, and 1, 3, 4-triazole with the spectrum of toluene leads to the conclusion that the electron-acceptor character of the heterocycles drops off in the order o
Publikováno v:
ChemInform. 32
Publikováno v:
Chemistry of Heterocyclic Compounds. 36:623-625