Improved Synthesis of 2,2‘-Dibromo-9,9‘-spirobifluorene and Its 2,2‘-Bisdonor-7,7‘-bisacceptor-Substituted Fluorescent Derivatives
作者:Chih-Long Chiang、Ching-Fong Shu、Chin-Ti Chen
DOI:10.1021/ol0513591
日期:2005.8.1
Pure 2,2'-Dibromo-9,9'-spirobifluorene was synthesized by a method that did not involve troublesome dibromination of 9,9'-spirobifluorene or Sandmeyer reaction of 2,2'-diamino-9,9'-spirobifluorene. A series of donor-acceptor orthogonally substituted 9,9'-spirobifluorene was subsequently prepared showing rich variation of fluorescence in solution and in solid state. [reaction: see text]
通过不涉及麻烦的9,9'-螺双芴或2,2'-二氨基-9,9'-螺双芴的Sandmeyer反应的方法合成纯的2,2'-Dibromo-9,9'-螺双芴。随后制备了一系列供体-受体正交取代的9,9'-螺二芴,显示了溶液和固态中荧光的丰富变化。[反应:看文字]