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Mass spectrometry in structural and stereochemical problems—CLXIV. Electron impact promoted fragmentation of some thiosemicarbazones
Author(s) -
Sheikh Younus M.,
Duffield A. M.,
Djerassi Carl
Publication year - 1968
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.1210010505
Subject(s) - semicarbazone , fragmentation (computing) , alicyclic compound , chemistry , mass spectrometry , electron ionization , mass spectrum , yield (engineering) , deuterium , computational chemistry , organic chemistry , chromatography , ionization , materials science , ion , physics , quantum mechanics , computer science , metallurgy , operating system
The mass spectral fragmentation of thiosemicarbazone derivatives of some typical aliphatic, alicyclic and aromatic aldehydes and ketones has been rationalized using high resolution mass spectrometry supplemented by deuterium labeling. Thiosemicarbazone derivatives of carbonyl compounds yield mass spectra which have little in common with those generated by their semicarbazone analogs.