N-formalanilido aromatic compounds, the corresponding...

Details N-formalanilido aromatic compounds, the corresponding... N-formalanilido aromatic compounds, the corresponding...

C - Chemistry, Metallurgy

07

C

260/295, 260/262

C07C 255/58 (2006.01) C07C 233/02 (2006.01)

Patent

CA 1133482

Dk 29994 ABSTRACT N-Formylanilido aromatic compounds, the corresponding anilido aromatic compounds and processes for their manufacture. N-Formylanilido aromatic compounds containing at least two electron-withdrawing substituents in the benzene ring are obtained by reacting together equimolecular quantities of a formanilide and an aromatic halogen compound in the presence of a diluent and an acid-binding agent at a reaction temperature below that which causes decarbonylation. The corres- ponding anilido aromatic compounds are obtained by conducting the process at a reaction temperature above the temperature of decarbonylation or by heating the N-formylanilido aromatic compounds above their temperature of decarbonylation.

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