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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 31, Number 5
BKCSDE 31(5)
May 20, 2010 

 
Title
Synthesis of Novel H8-Binaphthol-based Chiral Receptors and Their Applications in Enantioselective Recognition of 1,2-Amino alcohols and Chirality Conversion of L-Amino acids to D-Amino acids
Author
Hyein Jung, Raju Nandhakumar, Hoe Jin Yoon, Sang gi Lee*, Kwan Mook Kim*
Keywords
Octahydrobinaphthol, Chirality conversion, Amino acid, Amino alcohol, Enantioselective recognition
Abstract
Novel H8-binaphthol-based chiral receptors appended with an uryl moiety (2a) and a guanidinium moiety (2b) have been designed and synthesized for the enantioselective recognition of 1,2-amino alcohols via reversible imine formation. The selectivities (KR/KS = 9.8 ~ 19.4) of 2b in imine formation with 1,2-amino alcohols are higher than those of 2a (KR/KS = 1.8 ~ 4.5). Similar efficiency trend have been observed in the conversion of L-amino acids to D-amino acids, i.e., the efficiency of the receptor 2b (D/L ratio: 4.3 ~ 10.1) is superior to 2a (D/L ratio: 4.0 ~ 8.7).
Page
1289 - 1294
Full Text
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