Competitive nucleophilic aromatic substitution and palladium-catalyzed alkoxycarbonylation of (substituted chloroarene)Cr(CO)3 complexes

✍ Scribed by Jean-François Carpentier; Eric Finet; Yves Castanet; Jacques Brocard; André Mortreux

• Publisher: Elsevier Science
• Year: 1994
• Tongue: French
• Weight: 382 KB
• Volume: 35
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(00)73302-8

✦ Synopsis

The reaction of Cr(CO)j-complexed chloroarenes with HCO$H:, and NaOCH3 in the presence qf a catalytic amount of PdC&PPh3)2 gives esters in good yieldr provided that the arene is

substituted by an electron-&Wing group, whereas the presence of an electron-withdrawing substituent on the aromatic ring leads to ethers via an ipso nucteophilic aromatic substitution.