Abstract
Solutions with as little as 1% enantiomeric excess (ee) of D- or L-phenylalanine are amplified to 90% ee (a 95/5 ratio) by two successive evaporations to precipitate the racemate. Such a process on the prebiotic earth could lead to a mechanism by which meteoritic chiral α-alkyl amino acids could form solutions with high ee values that were needed for the beginning of biology.
Original language | English |
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Pages (from-to) | 12979-12980 |
Number of pages | 2 |
Journal | Proceedings of the National Academy of Sciences of the United States of America |
Volume | 103 |
Issue number | 35 |
DOIs | |
State | Published - 29 Aug 2006 |
Externally published | Yes |
Keywords
- Amino acids
- Crystallization
- Transamination