Zobrazeno 1 - 10
of 42
pro vyhledávání: '"M. I. Bardamova"'
Autor:
M. I. Bardamova, O. M. Usov
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 40:284-288
It was shown that the dyes formed by the irradiation of p-acetylenyl-N,N-dialkylanilines in the presence of halogenohydrocarbons are organic salts having the quinoid structure R=Alk This structure is confirmed by UV and PMR spectra and the results of
Autor:
M. I. Bardamova, O. M. Usov
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 39:978-984
The radicalcations of alkynylanilines are formed during the photolysis of ethynylanilines substituted at the para position in the presence of carbon tetrachloride and oxygen. They undergo two types of reaction, i.e., ejection of the alkyl substituent
Autor:
S. F. Vasilevskii, M. I. Bardamova, I. L. Kotlyarevskii, Mikhail V. Alfimov, V. A. Sazhnikov, Vladimir F. Razumov
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 28:329-333
1. The relative contribution of the triple bond to conjugation in the tert-butyl derivtives of tolan, diphenylacetylene, 4-tert-butyl-4′-(phenylethynyl)biphenyl, and 1,4-bis(p-tert-butylphenylethynyl) benzene is comparable with the contribution fro
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 26:836-839
The photocondensation of anthraquinone with 4,4′-dimethoxytolan proceeds much faster and gives the reaction products in higher yield than does the photocondensation of anthraquinone with phenylacetylene and p-diethynylbenzene.
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 23:1977-1980
1. Diethynylmesitylene and the trimethyl ether of monochloroethynylphloroglucinol were synthesized. A soluble high-melting oligomer was obtained from diethynylmesitylene. 2. Together with replacement of the oxygen of the carbonyl group by chlorine, t
Publikováno v:
Bulletin of the Academy of Sciences, USSR Division of Chemical Science. 15:867-871
1. A method is proposed for the synthesis of highly unsaturated monomeric and polymeric compounds with alternating double and triple bonds. 2. Some mono- and di-1-buten-3-ynyl derivatives of benzene were synthesized as monomers. 3. In the IR spectra
Publikováno v:
Chemistry of Heterocyclic Compounds. 8:1314-1317
A general method for the preparation of alkynyl derivatives of benzofuran, including α-ethynylbenzofuran, consists in the cyclization of o-mono-and dialkynylphenols under the conditions of the Mannich and Cadiot-Chodkiewicz reactions.
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 16:632-635
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 21:2188-2191
A number of acetylenic amines, representing piperidol derivatives, was synthesized, which are potential vasodilator agents.
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 21:1969-1972
1. The higher ethers of diacetylresorcinol are easily obtained by reacting it with a bromide of the allyl type in the presence of K2CO3. 2. In contrast to ethynylphenols, which contain free hydroxyl groups, the ethers of diethynylresorcinol smoothly