Dahlmann, Uwe et al. published their research in Helvetica Chimica Acta in 1997 | CAS: 6287-82-7

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. Its aromaticity makes it relatively stable, although as a heterocycle, it has reactive sites which allow for functionalization.COA of Formula: C8H4Br2S

The diyne reaction of 3,3′-bis(phenylethynyl)-2,2′-bithiophene derivatives via rhodium complexes. A novel approach to condensed benzo[2,1-b:3,4-b’]dithiophenes was written by Dahlmann, Uwe;Neidlein, Richard. And the article was included in Helvetica Chimica Acta in 1997.COA of Formula: C8H4Br2S This article mentions the following:

Benzodithiophenes I [R2 = H2, (CH)4; R1 = H, Ph, CO2Me] and benzotrithiophenes II [R, R1 = H; R2, R12 = (CH)4] were prepared Thus, treating bis(phenylethynyl)bithiophenes III [R, R1 = H; R2, R12 = (CH)4], easily available via Pd(II)-catalyzed alkynylation of the corresponding dibromobithiophenes, with [Rh(PPh3)3Cl] yields cyclic Rh complexes which smoothly react with appropriate R2CCR2 or S to give the target compounds in good yields. In the experiment, the researchers used many compounds, for example, 2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7COA of Formula: C8H4Br2S).

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. Its aromaticity makes it relatively stable, although as a heterocycle, it has reactive sites which allow for functionalization.COA of Formula: C8H4Br2S

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem