作者:Arturo Cert、Mariana Trujillo Péerez-Lanzac
DOI:10.1002/oms.1210220405
日期:1987.4
AbstractThe electron impact mass spectra of the 4‐formyl‐1, 3‐dihydro‐2H‐imidazole‐2‐thione, its six 1‐methyl(n‐propyl, n‐hexyl)‐3‐methyl(phenyl)‐disubstptuted derivatives, and the 1,3‐dihydro‐1‐phenyl‐2H‐imidazole‐2‐thiome are discussed. The fragmentation pattern is strongly influenced by the alkyl or phenyl N‐substituents, as well as by the length of the alkyl chain. The odd‐electron ions containing an N‐phenyl substituent, but not a propyl or hexyl group, eject a hydrogen atom from the phenyl ring, while the presence of a long alkyl chain greatly enhances the loss of the sulphyhydryl radical and facilitates the expulsion of several alkenes, and alkyl and alkenyl radicals.