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 2001/01
形態種別 学術雑誌
査読 査読あり
標題 Chemical Modification of Amide-Based Catenanes and Rotaxanes II. Synthesis of tertiary Amine [2]Catenanes and [2]Rotaxanes via N-Methylation Followed by Borane Reduction of secondary Amide [2]Catenanes and [2]Rotaxanes and Mobility of Their Components,
執筆形態 共著
掲載誌名 Bull. Chem. Soc. Jpn.
巻・号・頁 74(1),pp.149-155
著者・共著者 Nobuhiro Watanabe, Yoshio Furusho, Nobuhiro Kihara, Toshikazu Takata, Kazushi Kinbara, and Kazuhiko Saigo
概要 Secondary amide [2]catenane was converted to the tertiary amide [2]catenane 1b by repetitive treatment with MeI-KOH in DMSO. The amide functions were then reduced with borane in refluxing THF to give the tertiary amine [2]catenane. An X-ray crystallog. anal. of the tertiary amine [2]catenane showed that its solid-state structure was stabilized by a CH-π interaction between p-xylylene and m-xylylene units, together with a π-π stacking interaction between the two m-xylylene units. A variable temp. 1H NMR study suggested that this compd. had components of highly enhanced mobility in CDCl3, even at lower temp., although a much weaker interaction, such as the CH-π interaction, existed between their components in soln. A tertiary amine [2]rotaxane was similarly obtained from the corresponding secondary amide [2]rotaxane. The 1H NMR spectra indicated that the mobility of the components of this compd. is sufficiently high even at lower temp.
DOI 10.1246/bcsj.74.149
ISSN 0009-2673