检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]中国科学院成都有机化学研究所不对称合成联合开放实验室,成都610041
出 处:《分析化学》2002年第9期1099-1101,共3页Chinese Journal of Analytical Chemistry
基 金:国家自然科学基金资助项目 (No .2 9832 0 2 0 )
摘 要:介绍了利用手性chiralcelOD和chiralpakAD柱在高效液相色谱上对一系列二氢吡喃酮衍生物进行手性拆分 ,获得了良好的分离结果。考察了部分对映体在这两种柱上的色谱行为。实验表明手性化合物与手性柱之间存在着化学作用与空间作用 ,两者的共同作用决定了分离结果。The enantiomers of a series of diphdropyrone derivatives were resolved with high performance liquid chromatography by using chiralcel OD column and chiralpak AD column and hexane/2-propanol mixtures with different concentrations as eluent. Eighteen racemates were achieved to baseline or near baseline separation. The chromatographic parameters of some racemates on chiralcel OD and chiralpak AD columns were examined. The results showed that the separation effect was affected by the structure of compounds and chiral stationary, phase It was found that the chiral recognition process was the sum of all the possible chiral interaction(the dipole-dipole, hydrogen bond-hydrogen bond and pi-pi interaction) between the chiral stationary phase and dihydropyrone derivatives. This method has been applied to identify the optical purity of dihydropyrone derivatives.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.15