:Talk:Erlenmeyer–Plöchl azlactone and amino-acid synthesis

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It seems that there is an error in the description about Humphrey et al.'s procedure. In the experiment section in Humphrey's, methyl ester 4(R) was extracted into a CH2Cl2 layer and carboxylic acid 5(S) remained at a basic aqueous layer. Please see also Image talk:ErlenMeyerAminoAcidSynthesisTyrosine.svg. --Su-no-G (talk) 07:46, 8 September 2008 (UTC)