Preparation of both antipodes of enantiopure inherently chiral calix[4]crowns.
Both antipodes of enantiopure inherently chiral calix[4]crown derivatives were successfully obtained through separation of their BINOL diastereomeric derivatives of corresponding racemates using preparative TLC instead of conventional HPLC methods. Such a result provides a basis for future study of chiral recognition and asymmetric catalysis with inherently chiral calixrene derivatives.
Cao
Yu-Dong
YD
Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China.
Luo
Jun
J
Zheng
Qi-Yu
QY
Chen
Chuan-Feng
CF
Wang
Mei-Xiang
MX
Huang
Zhi-Tang
ZT