Nickel-Catalyzed Electrophilic Amination of the Biphenylene C-C σ-Bond

Org Lett. 2024 May 24;26(20):4268-4273. doi: 10.1021/acs.orglett.4c01226. Epub 2024 May 14.

Abstract

A nickel-catalyzed three-component carboamination of the biphenylene C-C σ-bond has been developed. Arylboronates and hydroxylamine derivatives work as carbon nucleophiles and nitrogen electrophiles, respectively, and the corresponding difunctionalized ring-opening products are obtained in good yields. The arylboronate nucleophile can be replaced with B2pin2 (boron nucleophile) and H-Si(OMe)3 (hydride nucleophile), thus allowing for the aminoboration and hydroamination of the biphenylene C-C σ-bond under similar nickel catalysis.