Mass spectral study of substituted methyl (E)-and (Z)-cinnamates under 1,2-dibromoethane chemical ionization

Vairamani, M. ; Saraswathi, M. ; Viswanadha Rao, G. K. (1991) Mass spectral study of substituted methyl (E)-and (Z)-cinnamates under 1,2-dibromoethane chemical ionization Organic Mass Spectrometry, 26 (9). pp. 786-788. ISSN 0030-493X

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/oms.121...

Related URL: http://dx.doi.org/10.1002/oms.1210260915

Abstract

Dibromoethane chemical ionization mass spectra of ten pairs of methyl (E)- and (Z)-cinnamates were studied. C2H4Br+ ion forms stable adducts with E-isomers and the adducts of Z-isomers show preferential loss of methanol. The observed results suggest that the probability of ring alkylation is greater than with the carbonyl group.

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