Benzene → HCID 12317491, compound

Participants

Reaction Steps

A mixture of 15.7 g. of ethyl cyclopentanone-2-carboxylate, 11 g. of pyrocatechol, 0.5 g. of p-toluenesulphochloride and 0.5g. of p-toluenesulphonic acid in 100 cc. of anhydrous benzene is refluxed until the theoretical amount of water no longer distils azeotropically. The mixture is washed first with dilute NaOH and then with H2O until neutral. After drying with Na2SO4 the solvent is removed under vacuum. The residual oil is fractionated, and the desired product boils at 136°-139°C./0.3 mm.

Provenance & Evidence