Premium
Electron impact studies. CXXIV —Negative ion mass spectra of organic functional groups. Thioacetanilides
Author(s) -
Clausen K.,
Pedersen B. S.,
Scheibye S.,
Lawesson S.O.,
Bowie J. H.
Publication year - 1979
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.1210140208
Subject(s) - ion , mass spectrum , chemistry , yield (engineering) , cleavage (geology) , electron ionization , polyatomic ion , nitro , crystallography , photochemistry , organic chemistry , materials science , alkyl , fracture (geology) , metallurgy , composite material , ionization
The thioacetanilide negative molecular ion (produced by secondary electron capture) is stable, but it fragments after collisional activation to yield [C 6 H 5 NH] − by cleavage α to the CS grouping. The negative molecular ions of (substituted) o ‐nitrothioacetanilides undergo a series of extremely complex rearrangement reactions. For example, the molecular anion derived from o ‐nitro‐ N ‐methylthioacetanilide yields both acetate and thioacetate anions as major fragment ions.