Oxalic Acid → HCID 131716373, compound

Participants

Reaction Steps

A mixture of 0.11 mole of dicyclohexylcarbodimide and 20 ml of toluene is added to a mixture of 0.1 mole of p-pentylbenzoic acid, 0.1 mole of 2,3-difluoro-4-cyanophenol (prepared as in Example 1), 1.5 g of 4-N,N-dimethylaminopyridine and 200 ml of toluene. After stirring for 4 hours at room temperature 0.4 g of oxalic acid is added to the mixture and stirring is continued for 30 minutes. Working up i the customary manner gives 4-(4-penylbenzoyloxy)-2,3-difluorobenzonitrile.

Provenance & Evidence