Direct Arylation of C(sp<sup>3</sup>)–H Bonds in Aliphatic Amides with Diaryliodonium Salts in the Presence of a Nickel Catalyst
作者:Miki Iyanaga、Yoshinori Aihara、Naoto Chatani
DOI:10.1021/jo501691f
日期:2014.12.19
The Ni(II)-catalyzed direct arylation of C(sp(3))-H (methyl and methylene) bonds in aliphatic amides containing an 8-aminoquinoline moiety as the directing group with diaryliodonium salts as coupling electrophiles is described. A wide variety of functional groups are tolerated in the reaction. The reaction represents the first example of the Ni-catalyzed direct arylation of C(sp(3))-H bonds with diaryliodonium salts.
Nickel-Catalyzed Direct Arylation of C(sp<sup>3</sup>)–H Bonds in Aliphatic Amides via Bidentate-Chelation Assistance
作者:Yoshinori Aihara、Naoto Chatani
DOI:10.1021/ja411715v
日期:2014.1.22
The Ni-catalyzed, direct arylation of C(sp(3))-H (methyl and methylene) bonds in aliphatic amides containing an 8-aminoquinoline moiety as a bidentate directing group with aryl halides is described. Deuterium-labeling experiments indicate that the C-H bond cleavage step is fast and reversible. Various nickelcomplexes including both Ni(II) and Ni(0) show a high catalytic activity. The results of a