In situ oxidation-Wittig methodology has been applied to alpha-hydroxyketones avoiding the problems normally associated with alpha-ketoaldehydes; the procedure is practically simple, and in many cases gives high yields of the product gamma-ketocrotonates; the procedure has also been successfully utilised with ethyl glycolate and glycolaldehyde dimer.
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Runcie et al. (2002) studied this question.
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