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Highly enantioselective fluorescent recognition of amino acid derivatives by unsymmetrical salan sensors |
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| Authors: | Xia YangKang Shen Xuechao LiuChengjian Zhu Yixiang Cheng |
| Affiliation: | a State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, PR China b State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, PR China |
| Abstract: | Novel unsymmetrical salan fluorescent sensors 2a and 2b have been designed and synthesized. The chiral recognition of N-Boc-protected amino acids by 2a and 2b has been investigated. Sensor 2a possesses higher sensitivity and enantioselectivity than sensor 2b does. Job analysis and nonlinear regression results show that 2a can form a 1:1 stoichiometric complex with a N-Boc-protected amino acid. The obtained response selectivities and the association constants indicate that 2a is a highly enantioselective and sensitive fluorescent sensor toward N-Boc-protected amino acids. |
| Keywords: | Chiral recognition Fluorescent sensor Unsymmetrical salan Amino acids PET |
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