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

页码：278 / 281

页数：4

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