Silver-Catalyzed Decarboxylative Trifluoromethylation of Aliphatic Carboxylic Acids
作者:Xinqiang Tan、Zhonglin Liu、Haigen Shen、Pei Zhang、Zhenzhen Zhang、Chaozhong Li
DOI:10.1021/jacs.7b07944
日期:2017.9.13
The silver-catalyzed decarboxylativetrifluoromethylation of aliphatic carboxylicacids is described. With AgNO3 as the catalyst and K2S2O8 as the oxidant, the reactions of aliphatic carboxylicacids with (bpy)Cu(CF3)3 (bpy = 2,2'-bipyridine) and ZnMe2 in aqueous acetonitrile at 40 °C afford the corresponding decarboxylativetrifluoromethylation products in good yield. The protocol is applicable to
Aromatic ketones having an extended fluoro-alkyl or fluoro-alkoxy moiety are disclosed. In particular aspects, the compounds comprise substituted 9-acridone, 9-xanthone, 4(1H)-quinolone, 4(1H) pyridone, 1,4-naphthoquinone, 9,10-anthraquinone derivatives. These preparations possess potent pharmacological activity for inhibiting malaria and mosquito-borne (Plasmodium) diseases. The haloalkyl/alkoxy aromatic compounds possess significant pharmacological activity, with IC50 values in the nanomolar and sub-nanomolar range, and reduced toxicity against host derived cells and tissues. Methods of using the fluoro-alkyl/alkoxy aromatic compounds in the treatment of malaria and other human and animal diseases are also disclosed. Agricultural uses of the fluoro-alkyl/alkoxy aromatic compounds, such as in control of fungal diseases and in the production of important commercial crops (apples, etc.), are also presented.