Zobrazeno 1 - 10
of 71
pro vyhledávání: '"B. D. Chernokal'skii"'
Autor:
B D Chernokal'skii, S V Fridland
Publikováno v:
Russian Chemical Reviews. 47:742-750
Data are presented on the reactions of phosphorus pentachloride with compounds containing oxa- and oxy-groups (ethers, acetals, oxetans, tetrahydrofuran, 1,3-dioxans, dioxolans, dihydropyrans, and alcohols). The structure of phosphorus pentachloride
Publikováno v:
Chemistry of Heterocyclic Compounds. 2:68-71
The UV spectra of indazolone and its derivatives are investigated, and hypotheses regarding their structure advanced. It is shown that the UV spectra of 1- and 2- acylindazolones have different characters, which can be utilized to identify those part
Autor:
A. Sh. Mukhtarov, B. D. Chernokal'skii, Yu. G. Galyametdinov, A. V. Il'yasov, A. A. Vafina, A. S. Gel'fond, Yu. M. Kargin, B. V. Mel'nikov, I. D. Morozova
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 21:2111-2114
1. The mechanism of the polarographic reduction of nitrophenyldiethylarsines, their oxides and sulfides in aprotonic medium was studied. Schemes of the subsequent chemical reactions after the reception of a second electron by these systems were propo
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 18:1381-1384
1. The UV spectra of a number of para-substituted phenyldialkylarsines and their oxides were studied. 2. The diethylarsinyl and diethylarsine groups behave as meta-orienters, in accord with the concept of participation of the d-orbitals of the As ato
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 19:2341-2345
1. Oxides of triphenyl- and aryldiethylarsines in dimethylformamide are reduced in one irreversible two-electron step. In the presence of phenol, four or more electrons per molecule are consumed for the reduction. 2. The satisfactory correlation of t
Autor:
I. A. Lamanova, A. S. Gel'fond, S. V. Izosimova, B. D. Chernokal'skii, Yu. G. Galyametdinov, R. R. Shagidullin, G. M. Dorozhkina
Publikováno v:
Journal of Applied Spectroscopy. 23:1350-1352
Autor:
A. S. Gel'fond, A. A. Barlev, B. D. Chernokal'skii, A. V. Il'yasov, A. A. Vafina, Yu. G. Galyametdinov
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 25:672-674
1. Arsinobenzoates are reduced in three steps, the first of which involves one electron and is reversible. The diethylarsinyl groups are electron acceptors. Transfer of a second electron leads to the rupture of the As-C bond and to the formation of m
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 26:834-836
1. We were the first to study the NQR spectra of the75As nuclei of a number of alkyl and arylarsonic and arsinic acids. A correlation of the NQR resonance frequencies with the total electronic effects indicates that in the investigated compounds the
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 21:664-666
1. The IR spectra of adducts of the [R3AsO]2HHal composition were studied. 2. The broad absorption at 750–1800 cm−1, which is separated into approximately three bands, was assigned to the absorption of the OH group, which participates in a strong
Publikováno v:
Chemistry of Heterocyclic Compounds. 1:275-277
A number of substituted 2-(N, N-diethyl-p-quinonediimine)indazolones have been synthesized, and their optical properties investigated. It has been shown that introduction of electrophilic substituents into the benzene ring of an indazolone gives rise