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Fast atom bombardment mass spectrometry of reaction products between C 3 O 2 and stabilized phosphorus ylides
Author(s) -
Seraglia Roberta,
Traldi Pietro,
Bertani Roberta,
Facchin Giacomo,
Pandolfo Luciano
Publication year - 1994
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.1210291108
Subject(s) - fast atom bombardment , chemistry , mass spectrometry , protonation , propane , medicinal chemistry , metastability , ion , organic chemistry , chromatography
A fast atom bombardment (FAB) mass spectrometric study on the open‐chain compound 1,3‐bis(cyanomethylenetriphenylphosphorane)propane‐1,3‐dione and on the cyclic zwitterionic compounds 4‐oxy‐5‐triphenylphosphonium‐6‐methyl‐2‐pyrone and 4‐oxy‐5‐triphenylphosphonium‐6‐phenyl‐2‐pyrone, obtained by reaction of carbon suboxide, C 3 O 2 , with stabilized phosphorus ylides, Ph 3 PCHX (XCN, COMe, COPh), is described. The FAB mass spectrometric behaviour of these compounds is compared with that shown by tri‐phenylphosphoranilideneketene, Ph 3 P C C O, and by 4‐hydroxy‐6‐methyl‐2‐pyrone, with the aid of metastable ion data and collision spectroscopy.