✍ Scribed by Kannan, R. ;Subbaram, M. R. ;Achaya, K. T.
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NMR shifts for a large number of fatty epoxy, hydroxy, keto, epithio, carboxymethylthio, cis and trans ethylenic, acetylenic, bromo and chloro compounds are recorded and discussed. A 3‐trans monoene present in aster seed oil could be identified. Cis and trans epoxy acids show different shifts (2.25 and 2.52 δ), and corresponding epithio acids show different shifts downfield (2.95 and 2.65 δ). The proton of a terminal acetylenic group, as in undecynoic acid, appears at 2.3 δ. 9,10,12,13‐Tetrabromides (from linoleic acid) and 9,9,10,10‐tetrabromides (from stearolic acid) were differentiated by the presence of triplets at 4.15 and 4.55 δ in the former.
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