Photocatalytic Synthesis of Primary Aryl Amines from Aryl Halides and Sodium Azide by Ni on Carbon Nitride

Key words

photocatalysis - nickel catalysis - carbon nitride - amination - sodium azide - aryl amines

Significance

A nickel-deposited mesoporous carbon nitride (Ni-mpg-CN_x) catalyzed the amination of aryl bromides with sodium azide in aqueous methanol in the presence of triethylamine as a base/electron donor under visible-light irradiation to give the corresponding primary aryl amines in ≤87% yield.

Comment

The authors have previously reported the preparation of Ni-mpg-CN _x and its application in the etherification of aryl halides with alcohols (Angew. Chem. Int. Ed. 2021, 60, 8494). In the reaction of 4-bromobenzonitrile, the catalyst was recovered by centrifugation and reused three times with a gradual loss of its catalytic activity (fresh: 84% yield; 4th run: 75% yield).

Publication History

Article published online:
18 August 2022