Synthesis of polyphenylene derivatives by thermolysis of enediynes and dialkynylaromatic monomers was written by John, Jens A.;Tour, James M.. And the article was included in Tetrahedron in 1997.Application In Synthesis of 2,3-Dibromobenzo[b]thiophene This article mentions the following:
Substituted enediynes and dialkynyl aromatics were prepared using Pd- or Pd/Cu-catalyzed cross coupling procedures, to obtain monomers that were subjected to thermal polymerization to afford the corresponding poly(p-phenylene)s, poly(1,4-naphthalene)s, poly(benzo[c]thiophene)s, and poly(dibenzothiophene)s. The scope of the polymerization process is illustrated based upon substituent patterns and cyclization. moieties. The superb thermal resiliency of the polyphenylenes and Polythiophenylenes obtained was demonstrated using thermogravimetric anal. The polymer structure was generally confirmed using IR data correlations to small mols. that resembled the polymer repeating unit structure. Radical trapping of dimeric intermediates, that were analyzed by GC/MS, further substantiated the proposed mechanistic route. The step-growth polymerization as monitored by GC/MS, further substantiated the proposed mechanistic route. The step-growth polymerization pattern was determined by monitoring the degree of monomer consumption vs. the polymer mol. weight The method is particularly well-suited for polymerization since it requires no exogenous chem. catalysts or reagents for the process, and it is a non-condensation process wherein no volatile byproducts are formed in the polymerization reaction, which makes it amenable to polymer film-forming vapor deposition processes, for, e.g., fabrication of semiconductor devices. In the experiment, the researchers used many compounds, for example, 2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7Application In Synthesis of 2,3-Dibromobenzo[b]thiophene).
2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7) belongs to benzothiophene derivatives. Benzothiophene is a fused ring compound of thiophene ring and benzene ring, which is an important class of heterocycles with advantageous structures. It is found within the chemical structures of pharmaceutical drugs such as raloxifene, zileuton, and sertaconazole, and also BTCP.Application In Synthesis of 2,3-Dibromobenzo[b]thiophene
Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem