Synthesis of Helical Poly(phenylacetylene)s with Amide Linkage Bearing <scp>l</scp>-Phenylalanine and <scp>l</scp>-Phenylglycine Ethyl Ester Pendants and Their Applications as Chiral Stationary Phases for HPLC
作者:Chunhong Zhang、Hailun Wang、Qianqian Geng、Taotao Yang、Lijia Liu、Ryosuke Sakai、Toshifumi Satoh、Toyoji Kakuchi、Yoshio Okamoto
DOI:10.1021/ma4015802
日期:2013.11.12
stereoregular helical poly(phenylacetylene) derivatives (PPA-Phe and PPA-Phg) with an amide linkage bearing l-phenylalanine and l-phenylglycine ethyl ester pendants were synthesized for use as chiral stationary phases (CSPs) in HPLC. The polymers showed different chiral recognition abilities depending on the coating solvents. Both PPA-Phe and PPA-Phg exhibited higher chiral recognitions when coated with
合成了具有带有1-苯基丙氨酸和1-苯基甘氨酸乙酯侧基的酰胺键的新型立体有规螺旋聚苯乙炔衍生物(PPA-Phe和PPA-Phg),用作HPLC中的手性固定相(CSP)。取决于涂料溶剂,聚合物显示出不同的手性识别能力。既PPA-PHE和PPA-PHG用CHCl涂布时表现出更高的手性认可3由具有优选构象。它们的手性识别能力取决于它们的分子量和旋光度,它们受聚合溶剂和单体浓度的影响。PPA-苯丙氨酸和PPA-Phg显示出相当不同的手性识别,表明前者的苄基和后者的苯基在手性识别中也起重要作用。少数外消旋物在PPA-Phe或PPA-Phg上被完全分离,其分离因子与在流行的基于多糖的CSP上获得的分离因子相当或更高。