Synthesis of a pair of novel receptors and their properties of enantioselective recognition for amino acid zwitterions |
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| Authors: | LU Guo-Yuan LIU Fang HE Wei-JiangWANG Zhi-Lin HU Hong-WenPliar Prados Javier de Mendoza |
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| Affiliation: | LU,Guo-Yuan LIU,Fang HE,Wei-JiangWANG,Zhi-Lin HU,Hong-WenPliar Prados Javier de MendozaDepartment of Chemistry,Nanjing University,Nanjing,Jiangsu 210093,China Departament de Quimica Organica,Universidad Autonoma de Madrid,Madrid 28049,Spain |
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| Abstract: | A pair of artificial enantiotopic receptors la and lb composed of ( S, S) or (R,R) chiral bicyclic guanidinium, azacrown ether and (t-butyldiphenylsilyloxy) methyl group for amino acid zwitterions have been synthesized. The liquid-liquid competition extraction experiments and 1H NMR studies indicate that the receptor 1a with (S, S) configuration and lb with (R,R) configuration selectively recognize L- and Z)-aromatic amino acids respectively. |
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| Keywords: | Enantioselective recognition amino acid zwitterion artificial receptor. |
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