Atmospheric CO2 promoted synthesis of N-containing heterocycles over B(C6F5)3 catalyst was written by Gao, Xiang;Yu, Bo;Mei, Qingqing;Yang, Zhenzhen;Zhao, Yanfei;Zhang, Hongye;Hao, Leiduan;Liu, Zhimin. And the article was included in New Journal of Chemistry in 2016.SDS of cas: 4887-83-6 This article mentions the following:
B(C6F5)3 combined with atm. CO2 was found to be highly effective for the cyclization of ortho-substituted aniline derivatives with N,N-dimethylformamide (DMF), and a series of N-containing heterocycles including benzothiazoles, benzimidazoles, quinazolinone and benzoxazole were obtained in good to excellent yields. In the experiment, the researchers used many compounds, for example, 7-Methyl-1H-benzo[d]imidazole (cas: 4887-83-6SDS of cas: 4887-83-6).
7-Methyl-1H-benzo[d]imidazole (cas: 4887-83-6) belongs to imidazole derivatives. 1H-imidazole is an imidazole tautomer which has the migrating hydrogen at position 1. It is a conjugate base of an imidazolium cation. It is a conjugate acid of an imidazolide. It is a tautomer of a 4H-imidazole. This ring system is present in important biological building blocks, such as histidine and the related hormone histamine.SDS of cas: 4887-83-6
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem