title: Novel calixarene hemisphere synthesized via pinacol rearrangement of [2.1.2.1]metacyclophane.
abstract: [reaction: see text] Tetramethoxy[2.1.2.1]metacyclophane ([2.1.2.1]MCP) was prepared by the pinacol coupling reaction of diphenylmethane dialdehyde. The treatment of [2.1.2.1]MCP with trimethylsilyl chloride and sodium iodide yielded two unexpected calixarene derivatives, cone (hemisphere) and 1,2-alternate types, instead of octahydroxy[2.1.2.1]MCP. The X-ray structure of the cone-type derivative and its inclusion property with acetonitrile were also discussed.
authors: Department of Applied Chemistry and Biochemistry, Faculty of Engineering, Graduate School of Science and Technology, Kumamoto University, Japan. sawada@kumamoto-u.ac.jp
authors: Tsuyoshi
authors: T
authors: Sawada
authors: Yousuke
authors: Y
authors: Nishiyama
authors: Wataru
authors: W
authors: Tabuchi
authors: Makoto
authors: M
authors: Ishikawa
authors: Emi
authors: E
authors: Tsutsumi
authors: Yutaka
authors: Y
authors: Kuwahara
authors: Hideto
authors: H
authors: Shosenji