
%0 Journal Article
%A Dawson, RM 
%A Gillis, RG 
%T [3,4-D<sub>2</sub>]Thiophen: synthesis and scrambling on electron impact
%J Australian Journal of Chemistry
%D 1972/06/01
%V 25
%N 6
%P 1221-1227
%K 
%R https://doi.org/10.1071/CH9721221
%U https://www.publish.csiro.au/paper/CH9721221 
%X [3,4-D,]Thiophen (1) has been prepared by hydrogen-deuterium exchange reactions using trifluoroacetic acid. [2,5-D2]Thiophen (2) and (1) show an unexplained difference in the amount of scrambling in the formation of the CHS+ ion on electron impact. This difference is maintained when the electron beam and ion draw-out voltages are varied. 
