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Issue 19, 2004
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Racemic D,L-asparagine causes enantiomeric excess of other coexisting racemic D,L-amino acids during recrystallization: a hypothesis accounting for the origin of L-amino acids in the biosphere

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Abstract

When recrystallizations were performed using a mixture of 12 D,L-amino acids (alanine, aspartic acid, arginine, glutamic acid, glutamine, histidine, leucine, methionine, serine, valine, phenylalanine, and tyrosine) with excess D,L-asparagine, all amino acids with the same configuration as asparagine were preferentially co-crystallized, indicating that it is the nature of a mixture of racemic amino acids to produce a spontaneous high enantiomeric excess.

Graphical abstract: Racemic d,l-asparagine causes enantiomeric excess of other coexisting racemic d,l-amino acids during recrystallization: a hypothesis accounting for the origin of l-amino acids in the biosphere

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Publication details

The article was received on 01 Jul 2004, accepted on 10 Aug 2004 and first published on 07 Sep 2004


Article type: Communication
DOI: 10.1039/B409941A
Citation: Chem. Commun., 2004,0, 2146-2147

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    Racemic D,L-asparagine causes enantiomeric excess of other coexisting racemic D,L-amino acids during recrystallization: a hypothesis accounting for the origin of L-amino acids in the biosphere

    S. Kojo, H. Uchino, M. Yoshimura and K. Tanaka, Chem. Commun., 2004, 0, 2146
    DOI: 10.1039/B409941A

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