Palladium‐Catalyzed and Hybrid Acids‐Assisted Synthesis of [60]Fulleroazepines in One Pot under Mild Conditions: Annulation of
<i>N</i>
‐Sulfonyl‐2‐aminobiaryls with [60]Fullerene through Sequential C‐H Bond Activation, C‐C and C‐N Bond Formation
An extraordinarily efficient hybrid acids‐assisted, palladium‐catalyzed and chelating‐group‐assisted CH bond activation of N‐sulfonyl‐2‐aminobiaryls and their annulations with [60]fullerene via sequential CC and CN bond formation at room temperature to afford [60]fulleroazepines is demonstrated. The formation of [60]fulleroazepines is highly regioselective and tolerant to both electron‐withdrawing
Palladium-Catalyzed Regioselective C–H Acylation of Biaryl-2-amines
作者:Zhong-Jian Cai、Chao Yang、Shun-Yi Wang、Shun-Jun Ji
DOI:10.1021/acs.joc.5b00962
日期:2015.8.21
A palladium-catalyzed efficient C–H acylation reaction of biaryl-2-amines and aromatic aldehydes is developed. This dehydrogenativecross-coupling protocol could furnish monoacylation and diacylation products in moderate to good yields with a broad substrate scope and good regioselectivity.
Palladium-Catalyzed Oxidative Insertion of Carbon Monoxide to <i>N</i>-Sulfonyl-2-aminobiaryls through C–H Bond Activation: Access to Bioactive Phenanthridinone Derivatives in One Pot
Palladium-catalyzed oxidative carbonylation of N-sulfonyl-2-aminobiaryls through C-H bond activation and C-C, C-N bond formation under TFA-free and milder conditions has been developed. The reaction tolerates a variety of substrates and provides biologically important phenanthrldlnone derivatives in yields up to 94%.