USE OF ARYL CHLORIDES IN PALLADIUM-CATALYZED C-H BOND FUNCTIONALIZATION
申请人:Daugulis Olafs
公开号:US20090012293A1
公开(公告)日:2009-01-08
A one-step method for efficiently converting carbon-hydrogen bonds into carbon-carbon bonds using chloroarenes and palladium catalysts is disclosed. This method allows faster introduction of complex molecular entities, a process that would otherwise require many more steps. This invention is particularly relevant for the organic synthesis of complex molecules such as, but not limited to, pharmacophores.
Ruthenium-Catalyzed C−H Arylation of Benzoic Acids and Indole Carboxylic Acids with Aryl Halides
作者:Marco Simonetti、Diego M. Cannas、Adyasha Panigrahi、Szymon Kujawa、Michal Kryjewski、Pan Xie、Igor Larrosa
DOI:10.1002/chem.201605068
日期:2017.1.12
Ru-catalyzed C-H arylation of benzoic acids with readily available aryl (pseudo)halides. The reaction, which does not require the use of silver salt additives, allows the arylation of previously challenging hindered benzoic acids and the use of generally unreactive ortho-substituted halorarenes. Furthermore, our new protocol can efficiently be applied to indolecarboxylicacids, thus allowing access to C7-
Two Methods for Direct <i>ortho</i>-Arylation of Benzoic Acids
作者:Hendrich A. Chiong、Quynh-Nhu Pham、Olafs Daugulis
DOI:10.1021/ja071845e
日期:2007.8.1
of free benzoicacids have been developed. The first method employs stoichiometric silver acetate for iodide removal, aryl iodide as the coupling partner, and acetic acid solvent. This method is applicable to the arylation of electron-rich to moderately electron-poor benzoicacids and tolerates chloride and bromide substituents on both coupling partners. The second method involves the use of aryl chloride