Yasui, Kosuke published the artcileThe Effect of the Leaving Group in N-Heterocyclic Carbene-Catalyzed Nucleophilic Aromatic Substitution Reactions, Product Details of C5H5BrN2, the publication is Bulletin of the Chemical Society of Japan (2020), 93(12), 1424-1429, database is CAplus.
The reactivity order of the leaving group was F > Cl â?Br > I in N-heterocyclic carbene-catalyzed CSNAr reactions of aryl halides bearing an α,β-unsaturated amide was discussed. Based on a qual. Marcus anal., the nature of the transition state in this catalytic CSNAr was primarily determined by the potential energy of the Meisenheimer complex, even though it was not involved as a discrete intermediate in the reaction pathway.
Bulletin of the Chemical Society of Japan published new progress about 39856-58-1. 39856-58-1 belongs to pyridine-derivatives, auxiliary class Pyridine,Bromide,Amine, name is 2-Bromopyridin-3-amine, and the molecular formula is C14H26O2, Product Details of C5H5BrN2.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem