226087-71-4

Upstream product

• 162715-93-7 1,4-di-n-dodecyl-2,5-diiodobenzene 
• 1066-54-2 trimethylsilylacetylene 
• 143-15-7 1-dodecylbromide 
• 106-46-7 para-dichlorobenzene 
• 15890-72-9 laurylmagnesium bromide 
• 5149-65-5 4,4'-di-n-dodecylbenzene 

Downstream Products

• 226087-72-5 1,4-Bis-(4-bromo-phenylethynyl)-2,5-didodecyl-benzene 
• 226087-75-8 1,4-Didodecyl-2,5-bis-[4-(4-trimethylsilanylethynyl-phenylethynyl)-phenylethynyl]-benzene 
• 226087-74-7 1,4-Bis-[4-(4-bromo-phenylethynyl)-phenylethynyl]-2,5-didodecyl-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.

A giant molecular spoked wheel

The modular synthesis of a defined, rigid molecular spoked wheel structure with the sum formula C1878H2682 and a diameter of about 12 nm is described. The attached 96 dodecyl side chains provide the solubility of the 25 260 Da compound in common organic solvents. At the octanoic acid/highly oriented pyrolytic graphite interface, the molecules self-assemble to form an ordered 2D lattice, which is investigated by scanning tunneling microscopy, displaying their structure with submolecular resolution.