Wang, Xian-Jin et al. published their research in New Journal of Chemistry in 2017 | CAS: 55219-11-9

Benzo[b]thiophene-2-carbonitrile (cas: 55219-11-9) belongs to benzothiophene derivatives. Benzothiophene is relatively a stable molecule. The core structure is a part of various pharmaceutical substances and natural products. Its aromaticity makes it relatively stable, although as a heterocycle, it has reactive sites which allow for functionalization.HPLC of Formula: 55219-11-9

Cyanation of aromatic/vinylic boronic acids with α-cyanoacetates was written by Wang, Xian-Jin;Zhang, Song-Lin. And the article was included in New Journal of Chemistry in 2017.HPLC of Formula: 55219-11-9 This article mentions the following:

A friendly protocol was reported to achieve cyanation of aromatic and vinylic boronic acids using nontoxic and readily available α-cyanoacetates as a cyano source under aerobic conditions. Many aryl/vinyl boronic acids (as well as some iodides and bromides) were amenable substrates to give aryl nitriles ArCN [Ar = 4-MeOC6H4, 3-quinolinyl, 2-benzothienyl, etc.] and acrylonitriles I [R1 = H, Ph; R2 = Ph, 4-MeOC6H4, 4-BrC6H4; R3 = H, Ph]. This cyanation method provided a safe and operationally convenient alternative to traditional ones requiring toxic cyanide salts. In the experiment, the researchers used many compounds, for example, Benzo[b]thiophene-2-carbonitrile (cas: 55219-11-9HPLC of Formula: 55219-11-9).

Benzo[b]thiophene-2-carbonitrile (cas: 55219-11-9) belongs to benzothiophene derivatives. Benzothiophene is relatively a stable molecule. The core structure is a part of various pharmaceutical substances and natural products. Its aromaticity makes it relatively stable, although as a heterocycle, it has reactive sites which allow for functionalization.HPLC of Formula: 55219-11-9

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem