A well-defined iron catalyst with high efficiency for Suzuki–Miyaura coupling involving C(sp3) partners is described. In the presence of a lithium amide base, this catalyst enabled, for the first time, C(sp3)−C(sp2) coupling of 1°, 2°, and 3° alkyl halides and (hetero)aryl boronic esters as well as C(sp3)−C(sp3) coupling of 1° and 2° alkyl halides and 1° and 2° alkyl boranes under mild conditions and
Electrocatalytic Formal C(sp2)−H Alkylations via Nickel‐Catalyzed Cross‐Electrophile Coupling with Versatile Arylsulfonium Salts
作者:Takuya Michiyuki、Simon L. Homölle、Neeraj K. Pandit、Lutz Ackermann
DOI:10.1002/anie.202401198
日期:2024.7.15
A formal C(sp2)−H alkylation via the dibenzothiophenylation/nickel-catalyzed eXEC sequence is presented. The first activation step selectively gives aryldibenzothiophenium salts, which are subsequently engaged in electroreductive nickel catalysis. The method provides various C(sp2)−C(sp3) linkages with high sp3-hybridized carbon contents. The demonstration of one-pot alkylations further reinforces