Journal article

Vicinal c-h coupling as an aid to stereochemical assignments in substituted propenoic acids

HH Keah, ID Rae

Australian Journal of Chemistry | Published : 1993


Two isomeric pairs of 3-bromopropenoic acids were prepared and vicinal C-H couplings were measured in their 13C n.m.r. spectra. Complete C-H coupling schemes were also obtained for these and several other propenoic acids. It was seen that the ranges for 3Jtrans and 3Jcis did not overlap, and so a stereochemical assignment based upon n.m.r. data for a single isomer can be made with confidence.

University of Melbourne Researchers

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