Decarboxylative C–H Arylation of Benzoic Acids under Radical Conditions
摘要:
A decarboxylative radical cyclization reaction has been developed for the synthesis of fluorenones. The reaction uses Ag(I)/K2S2O8 to oxidatively decarboxylate an aroylbenzoic acid to an aryl radical, which undergoes cyclization to afford fluorenone products in good yield.
Palladium-Catalyzed Chemoselective Decarboxylative Ortho Acylation of Benzoic Acids with α-Oxocarboxylic Acids
作者:Jinmin Miao、Haibo Ge
DOI:10.1021/ol400919u
日期:2013.6.21
Palladium-catalyzed chemoselective decarboxylative cross coupling of benzoic acids with α-oxocarboxylic acids was realized via an arene sp2 C–H functionalization process. This work represents the first example of transition-metal-catalyzed cross-coupling reactions with two acids acting in different roles. The syntheticutility of this method was confirmed by the synthesis of pitofenone, an antispasmodic