Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, Research Support, Non-U.S. Gov’t, Journal of Organic Chemistry called Palladium-Catalyzed Direct Synthesis of Carbazoles via One-Pot N-Arylation and Oxidative Biaryl Coupling: Synthesis and Mechanistic Study, Author is Watanabe, Toshiaki; Oishi, Shinya; Fujii, Nobutaka; Ohno, Hiroaki, which mentions a compound: 58656-04-5, SMILESS is F[B-](F)(F)F.[PH+](C1CCCCC1)(C2CCCCC2)C3CCCCC3, Molecular C18H34BF4P, Safety of Tricyclohexylphosphonium tetrafluoroborate.
An efficient catalytic system was developed for the synthesis of carbazoles by 1-pot N-arylation and oxidative biaryl coupling. A significant substituent effect of the diarylamine intermediate on oxidative coupling was observed Mechanistic studies of oxidative coupling, including trapping of reaction intermediates and kinetic isotope effect experiments, are also presented.
Different reactions of this compound(Tricyclohexylphosphonium tetrafluoroborate)Safety of Tricyclohexylphosphonium tetrafluoroborate require different conditions, so the reaction conditions are very important.
Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem