Room-Temperature Decarboxylative Couplings of α-Oxocarboxylates with Aryl Halides by Merging Photoredox with Palladium Catalysis
作者:Wan-Min Cheng、Rui Shang、Hai-Zhu Yu、Yao Fu
DOI:10.1002/chem.201502286
日期:2015.9.14
Enabled by merging iridium photoredox catalysis and palladium catalysis, α‐oxocarboxylate salts can be decarboxylatively coupled with aryl halides to generate aromatic ketones and amides at room temperature. DFT calculations suggest that this reaction proceeds through a Pd0–PdII–PdIII pathway, in which the PdIII intermediate is responsible for reoxidizing IrII to complete the IrIII–*IrIII–IrII photoredox
通过合并铱的光氧化还原催化和钯催化,α-氧代羧酸盐可以与芳基卤化物脱羧偶联,在室温下生成芳族酮和酰胺。DFT计算表明,该反应通过Pd 0 -Pd II -Pd III途径进行,其中Pd III中间体负责重新氧化Ir II以完成Ir III- * Ir III -Ir II光氧化还原循环。