Luo, Yan et al. published their research in Tetrahedron in 2013 | CAS: 55219-11-9

Benzo[b]thiophene-2-carbonitrile (cas: 55219-11-9) belongs to benzothiophene derivatives. Benzothiophene finds use in research as a starting material for the synthesis of larger, usually bioactive structures. Its aromaticity makes it relatively stable, although as a heterocycle, it has reactive sites which allow for functionalization.Computed Properties of C9H5NS

Copper-mediated cyanation of aryl boronic acids using benzyl cyanide was written by Luo, Yan;Wen, Qiaodong;Wu, Zhiyuan;Jin, Jisong;Lu, Ping;Wang, Yanguang. And the article was included in Tetrahedron in 2013.Computed Properties of C9H5NS This article mentions the following:

An efficient copper-mediated synthesis of aryl nitriles from arylboronic acids was achieved using benzyl cyanide as a user-friendly cyanide source. Various arylboronic acids underwent the reaction smoothly, affording the corresponding aryl nitriles in moderate to good yields. Tert-Bu hydroperoxide (TBHP) was found to be a critical agent facilitating the cyanation. In the experiment, the researchers used many compounds, for example, Benzo[b]thiophene-2-carbonitrile (cas: 55219-11-9Computed Properties of C9H5NS).

Benzo[b]thiophene-2-carbonitrile (cas: 55219-11-9) belongs to benzothiophene derivatives. Benzothiophene finds use in research as a starting material for the synthesis of larger, usually bioactive structures. Its aromaticity makes it relatively stable, although as a heterocycle, it has reactive sites which allow for functionalization.Computed Properties of C9H5NS

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem