226087-72-5

Upstream product

• 589-87-7 1,4-bromoiodobenzene 
• 226087-71-4 1,4-bis(trimethylsilylethynyl)-2,5-didodecylbenzene 
• 162715-93-7 1,4-di-n-dodecyl-2,5-diiodobenzene 
• 5149-65-5 4,4'-di-n-dodecylbenzene 
• 143-15-7 1-dodecylbromide 

Downstream Products

• 226087-74-7 1,4-Bis-[4-(4-bromo-phenylethynyl)-phenylethynyl]-2,5-didodecyl-benzene 
• 226087-75-8 1,4-Didodecyl-2,5-bis-[4-(4-trimethylsilanylethynyl-phenylethynyl)-phenylethynyl]-benzene 
• 226087-73-6 1,4-Didodecyl-2,5-bis-(4-trimethylsilanylethynyl-phenylethynyl)-benzene 

Relevant academic research and scientific papers

Rapid bi-directional synthesis of oligo(1,4-phenylene ethynylene)s

A new method for the preparation of oligo(1,4-phenylene ethynylene)s is described. Only two sets of reaction conditions are needed for the entire iterative synthetic sequence: (1) Pd-catalyzed cross-coupling of trimethylsilylacetylene with an aryl halide and (2) in situ desilylation/Pd- catalyzed coupling with an aryl iodide. This method provides a fast synthetic route to short length oligo(1,4-phenylene ethynylene)s by oligomer growth at both ends.