Mechanism of direct side-chain acylamination and aminoarylation of 2- and 4-picoline 1-oxides
作者:Rudolph A. Abramovitch、Dorota A. Bramovitch、Piotr Tomasik
DOI:10.1039/c39810000561
日期:——
The isolation of radical coupling products and the observation of appropriate C.I.N.D.P. signals suggest that most of the title reactions proceed by homolysis of the anhydro-bases (4) or (9) followed by radical recombinations; a diaza-oxy-Cope rearrangement may still account for the formation of α-acylamination products.
Nickel-Catalyzed Enantioconvergent Reductive Hydroalkylation of Unactivated Alkenes with α-Pyridyl Alkyl Electrophiles
作者:Yiting Hao、Xinlin Wang、Yumeng Wu、Liangliang Song、Kui Zhang、Lingchao Cai
DOI:10.1021/acscatal.3c04147
日期:2023.12.1
established via a nickel/Box catalyst with α-pyridyl alkylbromide. The mild reaction conditions enable a remarkably broad substrate scope and good functional-group tolerance, leading to the formation of a variety of enantioenriched alkylated pyridine derivatives in good yields with high enantioselectivities. Further application of enantioenriched pyridine derivatives is demonstrated by an asymmetric Si–H