Stilbenoid Dimers: Dissection of a Paracyclophane Chromophore
作者:Guillermo C. Bazan、Warren J. Oldham,、Rene J. Lachicotte、Sergei Tretiak、Vladimir Chernyak、Shaul Mukamel
DOI:10.1021/ja973816h
日期:1998.9.1
discrete chromophore relative to a state containing the through-space delocalized paracyclophane core. Thus, 4-vinyl[2.2]paracyclophane (5) is obtained by reaction of 4-bromo[2.2]paracyclophane (3) and ethylene using Pd(OAc)2 and P(o-tol)3. Similar reactions starting with pseudo-o- or pseudo-p-dibromo[2.2]paracyclophane (4a and 4b, respectively) give the pseudo-o- and pseudo-p-divinyl products (6a and