Highly selective and high-yielding rotaxane synthesis via aminolysis of prerotaxanes consisting of a ring component and a stopper unit

被引:37
|
作者
Hirose, Keiji [1 ]
Nishihara, Keiji [1 ]
Harada, Naoki [1 ]
Nakamura, Yamato [1 ]
Masuda, Daisuke [1 ]
Araki, Masami [1 ]
Tobe, Yoshito [1 ]
机构
[1] Osaka Univ, Div Frontier Mat Sci, Grad Sch Engn Sci, Toyonaka, Osaka 5638531, Japan
关键词
D O I
10.1021/ol070999w
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A highly rotaxane-selective synthesis via aminolysis of prerotaxanes, which were composed of a phenolic pseudo-crown ether as a ring component and a bulky stopper unit, was developed. The best result was obtained in the case of aminolysis of 3b with 3,5-dimethylbenzylamine which proceeded quantitatively with ca. 100% rotaxane selectivity forming the corresponding rotaxane 5b. The rotaxanes were formed by kinetically controlled attack of the amine from the backside of the ring component of the prerotaxanes.
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页码:2969 / 2972
页数:4
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