Rearrangement processes in the mass spectra of some 3,5-dimethylisoxazole derivatives

Autor:	R. A. Khmel'nitskii, S. D. Sokolov, K. K. Zhigulev
Rok vydání:	1972
Předmět:	Steric effects chemistry.chemical_compound Stereochemistry Chemistry Computational chemistry Ionization Organic Chemistry Steric factor Polyatomic ion Mass spectrum Isoxazole Ring (chemistry) Ion
Zdroj:	Chemistry of Heterocyclic Compounds. 8:1208-1211
ISSN:	1573-8353 0009-3122
DOI:	10.1007/bf00475531
Popis:	The mass spectra of isoxazole and some 3,5-dimethylisoxazole derivatives were investigated. Schemes for the formation of the principal rearranged ions are proposed on the basis of a study of the dissociative ionization of labeled compounds. Examples of the effect of electronic and steric factors on the probability of the existence of different channels for disintegration of the molecular ion are presented. It is shown that the formation of an ion with mass 82 during the dissociative ionization of a number of the investigated compounds occurs via different mechanisms as a function of the nature of the substituents in the 4 position of the isoxazole ring.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5bfbebe80a40d1378a6a32181299de32 https://doi.org/10.1007/bf00475531 Zobrazit plný text záznamu Full text from SpringerLink