Readily available cinnamic acid derivatives such as ferulic acid couple with β-bromostyrenes and 1-bromo-4-phenylbutadiene underpalladiumcatalysis accompanied by decarboxylation to produce the corresponding α,ω-diarylbutadienes and -hexatrienes, respectively. Some of the products exhibit solid-state fluorescence.
作者:Ling Ma、Jessica C. Morgan、Wendy E. Stancill、William E. Allen
DOI:10.1016/j.bmcl.2004.01.005
日期:2004.3
A lipophilic dye consisting of a (1E,3E,5E)-1,6-diphenyl-1,3,5-hexatriene (DPH) fluorophore attached to a phosphate diester was prepared, and itsfluorescence behavior in different solvent systems and in a liposomal membrane bilayer was examined. The key step in the synthesis of the functionalized end of the dye is a Sonogashira coupling of protected iodophenol with propargyl alcohol; the remaining