Zobrazeno 1 - 10
of 24
pro vyhledávání: '"R. R. Razakov"'
Publikováno v:
Chemistry of Natural Compounds. 30:417-429
The laws of the fragmentation of the metastable molecular and key fragmentary ions of mono- and dienic alcohols, acetates, aldehydes, hydrocarbons, and epoxy compounds forming components of the pheromones of the turnip, tomato, and bollworm moths and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55ec16a6e652b7f86009e93c1053c673
https://doi.org/10.1007/bf00630391
https://doi.org/10.1007/bf00630391
Publikováno v:
Chemistry of Natural Compounds. 28:110-114
The mass spectra of epoxy compounds have been studied and the positions of the epoxy rings and their configurations have been shown.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33cb6e2a73001a40b8f758e9e45fae8c
https://doi.org/10.1007/bf00629807
https://doi.org/10.1007/bf00629807
Autor:
R. R. Razakov, G. A. Igrasheva
Publikováno v:
Chemistry of Natural Compounds. 26:208-212
The structures of the products of intermediate stages of the synthesis of the sex pheromone hexadec-11Z-enal that are labile to electron impact have been studied with the aid of low-resolution mass spectrometry and metastable ions.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b727351890e5b595ac9ee86c34e76226
https://doi.org/10.1007/bf00607546
https://doi.org/10.1007/bf00607546
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 32:2207-2213
1. By direct analysis of daughter ions, a study has been made of the paths of fragmentation of the molecular and fragment ions manifested in the mass spectra of arylidene derivatives of barbituric acid and 2-thioxy-4-thiazolidone. It has been shown t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ece1cafe52f5ec60a5b8e7fd943dd46c
https://doi.org/10.1007/bf00954698
https://doi.org/10.1007/bf00954698
Publikováno v:
Chemistry of Heterocyclic Compounds. 23:737-740
The mass spectra of 4′-acyl derivatives of benzo-15-crown-5 and benzo-18-crown-6 were studied by the method of direct analysis of the daughter ions (DADI). It was established that the fragmentation of the M+ ions of the investigated compounds under
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfd20c4e7ba9249c841e4de1acb0a9fc
https://doi.org/10.1007/bf00475637
https://doi.org/10.1007/bf00475637
Publikováno v:
Chemistry of Natural Compounds. 17:72-76
Low- and high-resolution mass spectra and defocusing and DADI spectra of samples of β-sitosterol isolated from various plant material have been studied. The spectral information obtained has shown the presence in samples of β-sitosterol studied of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::398caee326c9ccce8be110473aea449d
https://doi.org/10.1007/bf00566438
https://doi.org/10.1007/bf00566438
Autor:
S. V. Afanas'eva, R. R. Razakov, N. S. Kulikov, A. S. Sadykov, A. G. Kalandarishvili, Yu. G. Bundel, L. A. Sviridova, P. B. Terent'ev
Publikováno v:
Chemistry of Heterocyclic Compounds. 22:1080-1083
The mass spectrometric fragmentation of substituted 3-amino-, 3-hydrazino-, and 3-hydroxypyrazolidines has been studied. In the gas phase these compounds exist partly as the acyclic tautomers.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::546ca94141abbdcd38913345a22edd8a
https://doi.org/10.1007/bf00473482
https://doi.org/10.1007/bf00473482
Publikováno v:
Chemistry of Natural Compounds. 17:557-562
The composition of the protective secretion of the seven-spot ladybugCoccinella septempunctata L. (Coleoptera, Coccinellidae) has been studied by the methods of high- and low-resolution mass spectrometry. By determining the complete genetic link betw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f9115796d3e4d4b59f3cc4bdd1a8bbf
https://doi.org/10.1007/bf00574376
https://doi.org/10.1007/bf00574376
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 29:1304-1307
The fundamental directions of mass spectrometric decomposition of molecular ions of the complex esters of N-(β-hydroxyethyl) anabasine and cytisine are related to the homolytic rupture of the ethylene bridge between the amine and complex-ester porti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21ca24c6ab0d458a6bb208ac6abeed49
https://doi.org/10.1007/bf00950577
https://doi.org/10.1007/bf00950577
Autor:
A. S. Sadykov, R. R. Razakov
Publikováno v:
Chemistry of Natural Compounds. 22:392-394
By mass-spectrometric methods, cholesterol and docosanoic, heneicosanoic, cicosanoic, octadecanoic, cis-octadec-9-enoic, heptadecanoic, hexadecanoic, and pentadecanoic acids have been identified in the odoriferous secretion of the pre-anal glands of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4db098a268541529cae2fcabc5bb8532
https://doi.org/10.1007/bf00579807
https://doi.org/10.1007/bf00579807