Benzothiophene or Benzofuran Bridges in Diaryl Ethenes: Two-Step Access by Pd-Catalyzed C-H Activation and Theoretical/Experimental Studies on Their Photoreactivity was written by Yuan, Kedong;Boixel, Julien;Chantzis, Agisilaos;Jacquemin, Denis;Guerchais, Veronique;Doucet, Henri. And the article was included in Chemistry – A European Journal in 2014.Safety of 2,3-Dibromobenzo[b]thiophene This article mentions the following:
A series of terarylenes incorporating benzothiophene (BT)/benzofuran (BF) as the central ethene unit was synthesized by using sequential Pd-catalyzed C-H activation reactions. This new methodol. allows the easy modification of the nature of the pendant heteroarene groups. Diaryl ethene (DAE) derivatives with thiophene, thiazole, pyrrole, isoxazole and pyrazole rings were prepared A large number of asym. DAEs are easily accessible by this new method in both the BT and BF series. The study of their photochromic properties in solution revealed that the nature of the heteroarene and of the central unit drastically modify their photochromic behavior. TD-DFT calculations were performed to assess the nature of the relevant excited states. In the experiment, the researchers used many compounds, for example, 2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7Safety of 2,3-Dibromobenzo[b]thiophene).
2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7) belongs to benzothiophene derivatives. Benzothiophenes are valuable heterocycles that are widely used in medicines, agrochemicals, and materials science. The different substitution patterns in these heterocycles offer new opportunities for drug discovery and other applications in materials science.Safety of 2,3-Dibromobenzo[b]thiophene
Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem