Chiral extraction of amino acid enantiomers using (S)-SEGPHOS-metal complexes as extractants

Chiral extraction of amino acid enantiomers using (S)-SEGPHOS-metal complexes as extractants
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使用 (S)-SEGPHOS-金属配合物作为萃取剂手性萃取氨基酸对映体

DOI:
10.1007/s11696-019-00970-z
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发表时间:
2019-10
期刊:
影响因子:
2.2
通讯作者:
Yang Pei yi
Yang Pei yi
中科院分区:
化学4区
文献类型:
--
作者:
Liu Xiong;Ma Yu;Cao Ting;Jiang Su ping;Yang Pei yi

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本研究采用(S)-SEGPHOS作为手性萃取剂来识别氨基酸对映体。选择苯丙氨酸 (Pha)、高苯丙氨酸 (Hpha)、4-硝基苯丙氨酸 (Npha)、苯甘氨酸 (Phg)、3-氯苯甘氨酸 (Cphg) 和酪氨酸 (Tys) 作为底物来估计 (S)-SEGPHOS-金属配合物的对映选择性。 (S)-SEGPHOS-Pd 是一种优异的手性萃取剂,可识别 Npha,操作对映选择性 (α) 为 4.25。 (S)-SEGPHOS-Cu是一种良好的手性萃取剂,可识别Pha、Hpha、Phg、Tys和Cphg,α值分别为2.87、1.93、2.28、4.07和2.94。通过响应面法优化后,Pha、Hpha、Phg、Npha、Tys 和 Cphg 的最高性能因子 (pf) 分别为 0.22893、0.11085、0.14003、0.25476、0.21414 和 0.23142。根据实验结果,讨论了可能的识别机制。
In this study, (S)-SEGPHOS was adopted as chiral extractant to recognize amino acid enantiomers. Phenylalanine (Pha), homophenylalanine (Hpha), 4-nitro-phenylalanine (Npha), phenylglycine (Phg), 3-chloro-phenylglycine (Cphg), and tyrosine (Tys) were selected as substrates to estimate the enantioselectivities of (S)-SEGPHOS-metal complexes. (S)-SEGPHOS-Pd was an excellent chiral extractant to recognize Npha with operational enantioselectivity (α) was 4.25. And (S)-SEGPHOS-Cu was a good chiral extractant to recognize Pha, Hpha, Phg, Tys, and Cphg withαwere 2.87, 1.93, 2.28, 4.07, and 2.94, respectively. After optimization by response surface methodology, the highest performance factors (pf) for Pha, Hpha, Phg, Npha, Tys, and Cphg were 0.22893, 0.11085, 0.14003, 0.25476, 0.21414, and 0.23142, respectively. Based on experimental results, the possible recognize mechanisms were discussed.
DOI: 10.1201/9780824746292
发表时间: 1999-01
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