The mass spectra of phenothiaphosphine derivatives

Autor: Itshak Granoth, Z. Pelah, E. D. Bergmann, A. Kalir
Rok vydání: 1970
Předmět:
Zdroj: Organic Mass Spectrometry. 3:1359-1364
ISSN: 1096-9888
0030-493X
DOI: 10.1002/oms.1210031103
Popis: The molecular ion of the phenothiaphosphine derivatives is fairly stable. Under electronimpact, the phenothiaphosphines (I) and phenothiaphosphinic acids (IV, R = H) undergo a one-step elimination of the phosphorus atom together with the groups attached to it. Substitutents in the aromatic rings, as well as on the phosphorus, influence the fragmentation pattern; ring methyl, e.g. leads to tropylium structures. Phosphine oxides of type V lose RO˙, probably after a rearrangement, when R = aryl, but R˙ if it is methyl.
Databáze: OpenAIRE