High-yield preparation of [2]rotaxanes based on the bis(m-phenylene)-32-crown-10-based cryptand/paraquat derivative recognition motif.
Based on the complexation between bis(m-phenylene)-32-crown-10-based cryptands and a paraquat derivative, two [2]rotaxanes were synthesized by using a threading-followed-by-stoppering method. Due to the strong associations between the cryptands and the paraquat derivative, high yields were achieved even in dilute solution.
Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China.
Shijun
S
Li
Ming
M
Liu
Jinqiang
J
Zhang
Bo
B
Zheng
Chuanju
C
Zhang
Xianhong
X
Wen
Ning
N
Li
Feihe
F
Huang