Selective synthesis of two constitutionally isomeric oriented calix[6]arene-based rotaxanes

被引：84
|
作者：
Arduini, A [1 ]
Ciesa, F [1 ]
Fragassi, M [1 ]
Pochini, A [1 ]
Secchi, A [1 ]
机构：
[1] Univ Parma, Dipartimento Chim Organ & Ind, I-43100 Parma, Italy
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2005年 / 44卷 / 02期
关键词：
calixarenes; rotaxanes; self-assembly; solvent effects; supramolecular chemistry;
D O I：
10.1002/anie.200461336
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Only in apolar media is the calix[6]arene wheel threaded from its upper rim by asymmetric bipyridinium axles. This leads to the formation of oriented pseudorotaxanes. Their stoppering with a different stopper yields rotaxanes characterized by the unequivocal orientation of the wheel rims with respect to the two different stoppers (see picture, R1= CHPh2/CHCy2, R2= CHCy2/CHPh2, Cy = cyclohexyl, Ts = toluene-4-sulfonyl).
引用
收藏
页码：278 / 281
页数：4
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