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Oxidative decarboxylation of N-acyl-α-amino acids with lead tetra-acetate followed by treatment with methanol provides a facile method for preparation of acyclic N-acyl-N,O-acetals, which can be used in asymmetric α-amidoalkylation reactions using trimethylsilyl cyanide as nucleophile.
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Harding et al. (1991) studied this question.
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