1,8-Ditriflated anthracene was prepared by an easy and straightforward approach that enables its reproducible synthesis on a 10 gram scale. Its symmetric/unsymmetric diethynylations by using the Sonogashira cross-coupling reactions were also demonstrated.
Expanding the Porphyrin π-System by Fusion with Anthracene
作者:Nicola K. S. Davis、Miłosz Pawlicki、Harry L. Anderson
DOI:10.1021/ol801500b
日期:2008.9.18
Synthesis of beta,meso,beta-anthracene triply fused and beta,meso-anthracene doubly fused porphyrins has been achieved via oxidative intramolecular ring closure of meso-(9-anthryl)porphyrins and meso-(1-anthryl)porphyrins, respectively. Fusion was only possible when the anthracene carried electron-donating alkoxy substituents. The fused porphyrins exhibit strongly red-shifted UV-vis absorption spectra and reduced electrochemical HOMO-LUMO gaps (relative to the unfused tetraaryl porphyrin precursor).