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Non‐Equilibration of the [MH] − ions of isomeric dimethylsulphone and methyl methylsulphinate
Author(s) -
Dua Suresh,
Bowie John H.
Publication year - 1995
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.1290090213
Subject(s) - chemistry , fragmentation (computing) , ion , medicinal chemistry , proton , analytical chemistry (journal) , stereochemistry , organic chemistry , physics , computer science , operating system , quantum mechanics
The collision‐induced dissociations of − CH 2 S(O) 2 CH 3 , − CD 2 S(O) 2 CH 3 and − CH 2 S(O)OCH 3 indicate that (i) a sulphone/sulphinate ester rearrangement does not occur for these systems, (ii) proton transfer accompanying or preceding the fragmentation of the [M H] − ion of the sulphone is a minor process, and (iii) the characteristic fragmentations of − CH 2 S(O) 2 CH 3 and − CH 2 S(O)OCH 3 form [CH 2 S(O) 2 ] −. and HCSO − respectively.