キハラ ノブヒロ   Kihara Nobuhiro
  木原 伸浩
   所属   神奈川大学  理学部 化学科
   職種   教授
言語種別 英語
発行・発表の年月 2008/12
形態種別 学術雑誌
査読 査読あり
標題 Quantitative Active Transport in [2]Rotaxane Using a One-Shot Acylation Reaction toward the Linear Molecular Motor
執筆形態 共著
掲載誌名 J. Org. Chem.
巻・号・頁 73(23),pp.9245-9250
著者・共著者 Yoshimasa Makita, Nobuhiro Kihara, Toshikazu Takata
概要 A rotaxane consisting of a crown ether wheel and a secondary ammonium salt axle, on which a neopentyl-type end-cap was placed close to the ammonium moiety, was prepd. When the rotaxane was treated by excess triethylamine, the wheel component thermodynamically moved over the proximate neopentyl group to deconstruct the interlocked structure. The wheel component in the rotaxane, however, quant. moved against the proximate end-cap by the action of trifluoroacetic anhydride in the presence of excess triethylamine. This motion, which was driven by the simple one-shot acylation reaction, can be referred as the active transport. When the distant end-cap is of the neopentyl-type, the axle can be thermally dethreaded from the distant end-cap after the acylative transport. The series of the wheel movement controlled by the neopentyl group can be the basic motion of the unidirectional linear mol. motor.
DOI 10.1021/jo8013726
ISSN 0022-3263