Ir(III)-Catalyzed Oxidative Annulation of Phenylglyoxylic Acids with Benzo[b]thiophenes was written by Wang, Zhigang;Yang, Mufan;Yang, Yudong. And the article was included in Organic Letters in 2018.SDS of cas: 5118-13-8 This article mentions the following:
An Ir(III)-catalyzed oxidative annulation of phenylglyoxylic acids with benzo[b]thiophenes for the construction of benzothieno[3,2-c][2]benzopyranones in one step is disclosed. Three C-H cleavages and C-C/C-O bond formations are involved in this reaction. This protocol features a relatively broad substrate scope, good functional group tolerance, good regioselectivities, mild reaction conditions, and scale-up synthesis. In the experiment, the researchers used many compounds, for example, 4-Bromobenzo[b]thiophene (cas: 5118-13-8SDS of cas: 5118-13-8).
4-Bromobenzo[b]thiophene (cas: 5118-13-8) belongs to benzothiophene derivatives. Benzothiophene finds use in research as a starting material for the synthesis of larger, usually bioactive structures. It is found within the chemical structures of pharmaceutical drugs such as raloxifene, zileuton, and sertaconazole, and also BTCP.SDS of cas: 5118-13-8
Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem