Mass spectrometry of long‐chain aliphatic aldehydes, dimethyl acetals and Alk‐1‐enyl ethers

Abstract

Abstract Mass spectra of long‐chain saturated and unsaturated aliphatic aldehydes, dimethyl acetals and alk‐1‐enyl methyl ethers are reported and discussed. Using deuterium labeled aldehydes, knowledge about the mass spectral fragmentation is obtained. The m/e M‐44 ion is formed by a rearrangement different from the mechanism postulated previously for short‐chain aldehydes. A series of hydrocarbon fragments with even mass numbers of 68+14n (n=0,1,2...) appear in the spectra of all three series of compounds.