Hydrogen randomisation prior to α-cleavage in 70 ev mass spectra of aliphatic ketones

Abstract

In the 70 ev mass spectra of methyl ketones deuteriated in the α-positions, the loss of CD₃via α-cleavage is accompanied by the loss of CHD₂ and CH₂D; similar loss of CH₃CD₂ from α-deuteriated ethyl ketones is also accompanied by the loss of CH₃CHD and CH₃CH₂.