NOVEL CROSSLINKED HEXAARYL BISIMIDAZOLE COMPOUND AND DERIVATIVE THEREOF, METHOD FOR PRODUCING THE COMPOUND AND PRECURSOR COMPOUND TO BE USED IN THE PRODUCTION METHOD
申请人:Abe, Jiro
公开号:EP2397468A1
公开(公告)日:2011-12-21
Provided is a crosslinked hexaaryl bisimidazole compound which can achieve photochromic characteristics, i.e., visually showing decoloring simultaneously with the stop of light irradiation and enables precise control of color tone, density and so on in coloring. Also provided are a method for producing the aforesaid compound whereby the degrees of freedom in molecular design and synthesis can be increased, and a precursor compound to be used in the production method.
The Albatrossenes: Large, Cleft-Containing, Polyphenyl Polycyclic Aromatic Hydrocarbons
作者:Ling Tong、Douglas M. Ho、Nancy J. Vogelaar、Clarence E. Schutt、Robert A. Pascal
DOI:10.1021/ja971261k
日期:1997.8.1
structures of very large polycyclic aromatic compounds containing clefts defined by polyphenylaryl groups are described. The C2-symmetric “albatrossenes” 1,3-bis(heptaphenyl-2-naphthyl)benzene (7a) and 1,3-bis(heptaphenyl-1-naphthyl)benzene (12a), as well as brominated derivatives, were synthesized by the addition of tetraphenylbenzyne to the appropriate polyphenyl biscyclopentadienones. The 2-naphthyl
描述了包含由聚苯芳基定义的裂缝的超大多环芳族化合物的合成和 X 射线结构。C2-对称“信天翁”1,3-双(七苯基-2-萘基)苯(7a)和1,3-双(七苯基-1-萘基)苯(12a),以及溴化衍生物,由将四苯基苄添加到适当的多苯基双环戊二烯酮中。2-萘基异构体具有宽而浅的裂缝,1-萘基异构体具有深而窄的裂缝,在不同的晶体环境中观察到这些裂缝的大小发生了显着变化。以类似的方式,1,3,5-三(五苯基苯基)苯(19),直径为21 A的D3对称分子推进器,和1,3,5-三(七苯基-2-萘基)苯( 22) 分别通过加入二苯乙炔和四苯苄制备,