Zobrazeno 1 - 10
of 26
pro vyhledávání: '"M. Ya. Botnikov"'
Autor:
E. B. Basargin, A. I. Kuznetsov, I. A. Vladimirova, M. Kh. Ba, M. Ya. Botnikov, A. S. Moskovkin
Publikováno v:
ChemInform. 22
Publikováno v:
ChemInform. 23
Publikováno v:
Chemistry of Heterocyclic Compounds. 28:823-828
The ring-chain tautomerism of alkyl-substituted 6-hydroxytetrahydro-1,3-thiazine-2-thiones was studied by IR spectroscopy and mass spectrometry. The dependence of the tautomeric equilibrium on the number and location of the methyl groups in the molec
Autor:
I. A. Vladimirova, E. B. Basargin, M. Kh. Ba, A. S. Moskovkin, A. I. Kuznetsov, M. Ya. Botnikov
Publikováno v:
Chemistry of Heterocyclic Compounds. 26:572-578
The condensation of ketones with tetramethylenediethylenediamine led to the isolation of 3,6-diazahomoadamantan-9-one and its derivatives with substituents in the angular positions; their structure was confirmed by the data of the IR, PMR, and mass s
Autor:
A. V. Peretokin, Yu. F. Malina, M. Ya. Botnikov, I. V. Miroshnichenko, A. S. Moskovkin, B. V. Unkovskii
Publikováno v:
ChemInform. 21
Reaction of the aminomethylcyclohexanols (I) or (IV) with carbon disulfide (II) gives the perhydrobenzoxazinethiones (III) and (V) respectively.
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 34:1820-1825
1. An equation describing the influence of the pressure on the rate constant of liquid-phase homolytic bond-cleavage reactions has been obtained. 2. A difference in the values of (∂ΔV≠/∂p)p=0/ΔV0≠ in addition and homolytic bond cleavage rea
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 26:514-517
1. Study has shown that the reaction between p-methoxytoluene and N-bromosuccinimide leads not only to benzyl bromination but also to ring bromination, the latter process becoming more significant as the pressure rises. 2. The mechanism of brominatio
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 26:517-521
1. Study has been made of the effect of pressures ranging up to 6000 kgf/cm2 on the bromination of ring-substituted toluenes by N-bromosuccinimide. Increase of pressure increases the rate of benzyl H atom detachment by Br atoms, the effect being most
Autor:
Yu. F. Malina, M. Ya. Botnikov, A. S. Moskovkin, B. V. Unkovskii, I. V. Miroshnichenko, A. V. Peretokin
Publikováno v:
Chemistry of Heterocyclic Compounds. 25:1390-1393
The syntheses and mass spectra of 5,6-tetramethylenetetrahydro-1,3-oxazine-2-thione and its 4-mono- and 4,4-disubstituted analogs are reported. The primary decay processes under electron impact are loss of the 1,3-oxazine ring, formation of hydrocarb
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 24:230-234
1. In the reaction of radical-chain chlorination of alkylaromatic compounds (cumene, ethylbenzene) by tert-butyl hypochlorite, with increasing pressure the content of theα-isomer, formed in a larger amount than theβ-isomer at atmospheric pressure,