Homochiral (S)-[10]paracyclophane-13-carboxylic acid ((S)-1) could conveniently be obtained on a preparative scale via fractional crystallization of the (S)-1-phenylethylamide diastereomers. (S)-1 was used for the first time as a stereodifferentiating element with planar chirality for a new chiral stationary phase (CSP) for HPLC. The CSP, which was prepared by bonding (S)-1 to γ-aminopropylsilanized silica gel via amide linkage, recognized a wide range of enantiomers by HPLC.
通过(S)-1-苯乙酰胺非对映异构体的分馏结晶,可以方便地制备出同手性(S)-[10]对二环烷-13-
羧酸((S)-1)。(S)-1首次被用作具有平面手性的立体区分元素,用于HPLC的新型手性固定相(C
SP)。该 C
SP 是通过酰胺键将 (S)-1 与γ-
氨丙基
硅胶结合而制备的,可通过 HPLC 识别多种对映体。