Studies in mass spectrometry. Part XIII. Mass spectra of disulphides; skeletal rearrangements upon electron impact

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Abstract
The mass spectra of a number of disulphides have been determined. In general, the saturated aliphatic disulphides, with the exception of dimethyl disulphide, fragment without the formation of abundant skeletal rearrangement ions. However, disulphides examined which contain sites of unsaturation (e.g., diallyl disulphide and aromatic disulphides) decompose to a large extent with skeletal rearrangement; the loss of one or two sulphur atoms (with or without additional hydrogen atoms) is a common fragmentation process.

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