Synthesis of <i>N</i>-Aryl and <i>N</i>-Alkyl Anthranilic Acids via S<sub>N</sub>Ar Reaction of Unprotected 2-Fluoro- and 2-Methoxybenzoic Acids by Lithioamides
Substitution of the fluoro or methoxy group in unprotected 2-fluoro- and 2-methoxybenzoic acids to afford N-aryl and N-alkyl anthranilic acids occurs upon reaction with lithioamides under mild conditions in the absence of a metal catalyst.