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Ortho effects in organic molecules on electron impact. 12—Mechanism of the H 2 O loss from the molecular ion of 2‐(phenylamino)benzoic acid
Author(s) -
Ramana D. V.,
Srinivas R.
Publication year - 1984
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.1210190907
Subject(s) - benzoic acid , acridone , mass spectrum , chemistry , ion , polyatomic ion , molecule , base (topology) , medicinal chemistry , photochemistry , stereochemistry , organic chemistry , mathematical analysis , mathematics
The mass spectrum of 2‐(phenylamino)benzoic acid is characterized by the presence of the base peak at m / z 195, formed by the expulsion of H 2 O from the molecular ion. A mechanism for the water loss, involving the COOH and NH functions followed by cyclization leading to the molecular ion of acridone, is proposed based on the study of the substituted derivatives and MIKE spectra.