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Chemical ionization mass spectra of chlorine‐substituted aryl‐propio‐ and ‐butyro‐nitriles: Occurrence of an unusual radical‐induced cyclization process
Author(s) -
Madhusudanan K. P.,
Seth M.,
Bhaduri A. P.
Publication year - 1985
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210200406
Subject(s) - chemistry , dehydrohalogenation , aryl , chlorine , mass spectrum , halogenation , protonation , reagent , electrophile , chemical ionization , photochemistry , molecule , ion , alkyl , ionization , medicinal chemistry , organic chemistry , catalysis
The chemical ionization (CI) induced reactions in certain chlorine‐containing aryl‐substituted alkyl nitriles have been studied using different reagent gases including ND 3 and CD 4 and with the help of collisional activation spectra. A few fragmentations can be explained only on the basis of protonation of or electrophilic attachment to neutral products formed in the CI source. A detailed investigation of the unusual dehalogenation and dehydrohalogenation reactions occurring in some of these molecules has shown that radical‐induced cyclization processes give rise to these ions.