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Ortho effects in organic molecules on electron impact part 22. Competing oxygen transfers from the nitro group to sulphur and the olefinic double bond in 2-nitrophenyl styryl sulphides

✍ Scribed by D. V. Ramana; N. Sundaram; M. George

Publisher
John Wiley and Sons
Year
1990
Tongue
English
Weight
269 KB
Volume
25
Category
Article
ISSN
1076-5174

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✦ Synopsis

Double oxygen migration to sulphur from the ortho-nitro group leading to eliminations of SO2 and 'S02H from the molecular ions and single oxygen transfer to the olefinic double bond in the sidechain giving rise to the most abundant ion at m/z 138 have been observed in 2-nitrophenyl styryl sulphides on electron impact. The proposed fragmentation mechanisms and the product ion structures were confirmed with the aid of high-resolution data, B/E linked scan and CID spectra.

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