Author:
Brown RFC,Browne NR,Eastwood FW
Abstract
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 560�/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.
Cited by
6 articles.
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