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Sodium [3‐13C]‐ and [3‐13CD3]propionate were conveniently synthesized from 2,4,4‐trimethyl‐2‐oxazoline. The numbers and locations of deuterium labels were confirmed by broad‐band deuterium and proton‐decoupled 13C‐nuclear magnetic resonance (13C‐{1H} {D}NMR) spectroscopy and fast atom bombardment mass (FAB‐MS) spectroscopy.
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Iida et al. (1994) studied this question.
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