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Chiral gold nanoparticle-based electrochemical sensor for enantioselective recognition of 3,4-dihydroxyphenylalanine

Yeon-Joo Kang1, Jeong-Wook Oh, Yang-Rae Kim

  • 1Department of Chemistry, Seoul National University, Seoul 151-747, Korea.

Chemical Communications (Cambridge, England)
|July 10, 2010
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Replacing each alpha-hydrogen in chloroethane by bromine (or a different functional group) yields a pair of enantiomers. Such protons are called prochiral or enantiotopic and are related by a mirror plane. Enantiotopic protons are chemically equivalent in an achiral environment. Because most proton NMR spectra are recorded using achiral solvents, enantiotopic hydrogens yield a single signal.
In chiral compounds such as 2-butanol, replacing the methylene hydrogens at C3 produces a pair of...
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