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Formation of aniline‐like ions by electron‐impact‐induced elimination of CO from formanilide
Author(s) -
Hammerum Steen
Publication year - 1975
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.1210101013
Subject(s) - aniline , ion , metastability , chemistry , deuterium , covalent bond , carbon fibers , carbon atom , photochemistry , organic chemistry , materials science , atomic physics , ring (chemistry) , physics , composite number , composite material
The metastable peak intensity ratios for elimination of HNC vs DNC from the [M CO] + · ion of deuterium labelled analogues of formanilide show that the formyl hydrogen atom migrates to nitrogen prior to or during CO expulsion to form a [C 6 H 7 N] + · ion of aniline‐like structure. An examination of metastable peaks does not allow similar conclusions to be reached for methyl substituted formanilides. Low abundance [C 6 H 6 O] +· ions are formed by HNC elimination from the formanilide molecular ion in a reaction where three covalent bonds to the formyl carbon are broken.