三新 chiral 为高效的液体层析的静止阶段(CSP ) 从 R-(3,3 卤素 substituted-1,1-binaphthyl ) 被准备 -20-crown-6 (卤素 = Cl, Br 并且我) 。试验性的结果证明 R-(3,3-dibromo-1,1-binaphthyl )-20-crown-6 (CSP-1 ) 比二另外的代替卤素的王冠醚衍生物拥有更突出的 enantioselectivity。所有 21 氨基酸在房间温度在 R-(3,3-dibromo-1,1-binaphthyl )-20-crown-6-based CSP-1 上有分离的不同的度。CSP-1 的 enantioselectivity 也比一些商业 R-(1,1-binaphthyl )-20-crown-6 衍生物的那些好。两分离因素()并且决定( R s )比商业王冠的那些好基于醚的 CSP [从 Daicel 的 CROWNPAK CR (+)]在为天门冬素, threonine ,脯氨酸,精氨酸,丝氨酸, histidine 和缬氨酸的一样的条件下面,它不能被商业 CR (+)分开。这研究证明 R-(3,3-dibromo-1,1-binaphthyl )-20-crown-6 chiral 的商业实用性是静止阶段。
Three new chiral stationary phases (CSPs) for high-performance liquid chromatography were prepared from R-(3,3'-halogen substituted-1,1'-binaphthyl)-20-crown-6 (halogen=C1, Br and I ). The experimental results showed that R-(3,3'-dibromo-l,l'-binaphthyl)-20-crown-6 (CSP-1) possesses more prominent enantioselectivity than the two other halogen-substituted crown ether derivatives. All twenty-one a-amino acids have different degrees of sep- aration on R-(3,3'-dibromo-l,l'-binaphthyl)-20-crown-6-based CSP-1 at room temperature. The enantioselectivity of CSP-1 is also better than those of some commercial R-(1, 1'-binaphthyl)-20-crown-6 derivatives. Both the separa- tion factors (a) and the resolution (Rs) are better than those of commercial crown ether-based CSPs [CROWNPAK CR(+) from Daicel] under the same conditions for asparagine, threonine, proline, arginine, serine, histidine and va- line, which cannot be separated by commercial CR(+). This study proves the commercial usefulness of the R-(3,3'-dibromo- 1, 1'-binaphthyl)-20-crown-6 chiral stationary phase.