Mass spectrometry in structural and stereochemical problems. CCXV. Behavior of phenyl-substituted. alpha.,. beta.-unsaturated ketones upon electron impact. …

RJ Liedtke, AF Gerrard, J Diekman…

Index: Liedtke,R.J. et al. Journal of Organic Chemistry, 1972 , vol. 37, p. 776 - 789

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Citation Number: 12

Abstract

This study is concerned with the effect of phenyl substitution upon the mass spectral behavior of+ unsaturated ketones as an example of a substance with three potential charge- retaining sites (carbonyl, double bond, aromatic ring). Compounds of the type CeH6 (CH&CH= CHCOCH3, n= 2-7 (I-VI), are examined. In general, the 70-eV spectra of these compounds are dominated by peaks at m/e 91 (tropylium ion) and m/e 43 (CY cleavage). ...