A novel palladium-catalyzed oxidative three-component coupling of easily accessible N-substituted anthranilamides with isocyanides and arylboronic acids is achieved. This protocol offers an alternative approach toward 2,3-disubstituted quinazolinones with a wide substrate scope and good functional group tolerance.
Hydroaminomethylation (HAM) of olefins constitutes one of the most promising and practical methods to produce amines, but control of the selectivity between linear and branched products is still challenging. Herein,...
The
direct conversion of alcohols into long-chain alkanes is an
attractive but extremely challenging approach for biomass upgrading.
Here, we describe the highly selective deoxygenative coupling of aryl
ethanols with primary alcohols to produce alkanes, using a bis-N-heterocyclic
carbene iridium (bis-NHC-Ir) complex as the catalyst. Up to quantitative
yields and selectivity with a broad substrate scope are attained in
both homo- and cross-coupling reactions. Mechanistic studies reveal
that the further synergistic hydrogenation of the alkene intermediates
by the formate generated in situ in the presence of bis-NHC-Ir is
crucial for alkane production.
A Pd‐catalyzed Suzuki–Miyaura cross‐coupling reaction between arylboronic acids and α‐iminonitriles has been developed. The reaction proceeds through selective activation of the C–CN bond, tolerates a wide range of substituents, and delivers the versatile ketone products in moderate to excellent yields.
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