
%0 Journal Article
%A Brown, RFC 
%A Browne, NR 
%A Eastwood, FW 
%T The fate of <I>carbonyl</I>-<sup>18</sup>O in the rearrangement of an acyloxycarbene to a 1,2-dione
%J Australian Journal of Chemistry
%D 1983/11/01
%V 36
%N 11
%P 2355-2358
%K 
%R https://doi.org/10.1071/CH9832355
%U https://www.publish.csiro.au/paper/CH9832355 
%X 5-[carbonyl-18O]Benzoyloxy-2,2,5-trimethyl-1,3-dioxan-4,6-dione (1) was prepared by benzoylation of 5-hydroxy-2,2-dimethyl-1,3-dioxan-4,6-dione with [18O]benzoyl bromide followed by C-methylation.Flash vacuum pyrolysis of(1) at 560º/0.01 mm gave 1-phenyl[1-180]propane-1,2-dione. The position of the label was determined by infrared and mass spectrometry. Scrambling of oxygen to the2-carbonyl group was negligible. 
