End-cap exchange of rotaxane by the Tsuji-Trost allylation reaction.
[reaction: see text] Rotaxanes possessing a cinnamyl ester group at the axle terminal were prepared. The terminal end-cap was modified with a bulky malonate ester in excellent yield by the Tsuji-Trost allylation reaction, which was carried out in the presence of a palladium catalyst.
Kihara
Nobuhiro
N
Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Gakuen-cho, Sakai, Osaka 599-8531, Japan. kihara@chem.osakafu-u.ac.jp
Motoda
Seiko
S
Yokozawa
Tsutomu
T
Takata
Toshikazu
T