Výsledky vyhledávání - "V. N. Galyashin"

Mass spectra of hydroxy-substituted methyl esters of benzenecarboxylic acids with different numbers of carboxyl groups

Autor: N. M. Kuz'min, V. N. Galyashin, Yu. N. El'kin, B. V. Rozynov

Publikováno v: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 32:1851-1857

1. A study has been made of the mass spectra of 20 methoxy-substituted methyl esters of benzenecarboxylic acids. 2. In the mass spectra, a number of intense peaks were observed from rearranged ions: (M-H20)+, (M-CHO)+, (M-CH3OH)+, and (M-CH5O)+. 3. T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7f73454992721244168ba13ab62e4342
https://doi.org/10.1007/bf00954660

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?Interference? peaks in the DADI-MIKE spectra of methyl esters of benzenepolycarboxylic acids

Autor: V. N. Galyashin, B. V. Rozynov

Publikováno v: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 31:515-520

1. The spectra of the metastable ions (DADI spectra) of 34 benzenepolycarboxylic acid methyl esters have been studied. 2. The DADI spectra contain intense peaks of the metastable ions I-1 and I-2 with nonintegral values of the mass numbers. 3. The ap

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ced74590e57888b91f44e336e96326ee
https://doi.org/10.1007/bf00949772

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Spectra of metastableions of positional isomers of methyl benzenepolycarboxylates

Autor: V. N. Galyashin, B. V. Rozynov

Publikováno v: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 31:256-259

1. The method of direct analysis of daughter ions (DADI) has been used in studying 28 positional isomers of the methyl esters of phthalic and benzenetricarboxylic acids. 2. On the basis of the spectra obtained for the metastable ions M+, [M-OCH3 (or

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7e8df7d2e7513e20a6e7a7a36162d20f
https://doi.org/10.1007/bf00948237

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Mass spectra of methoxy-substituted methyl esters of benzenecarboxylic acids with different numbers of carboxyl groups

Autor: V. N. Galyashin, Yu. N. El'kin, B. V. Rozynov, N. M. Kuz'min

Publikováno v: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 32:1858-1866

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9e4a55dc2afb2a80142aef1aac152e55
https://doi.org/10.1007/bf00954661

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Elimination of water from methyl esters of o-methoxybenzenepolycarboxylic acids under electron impact

Autor: B. V. Rozynov, V. N. Galyashin

Publikováno v: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 32:2542-2544

1. The process of eliminating water from the molecular ions of methoxybenzenepolycarboxylic acids under electron impact was studied. It was shown that the [M-H2O]+ ion is formed only in the case of compounds in which the methoxy group is located betw

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3304c993608239bd43fe0516d98f2d5e
https://doi.org/10.1007/bf00954491

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