Hydrochloric Acid → HCID 22390439, compound

Participants

Reaction Conditions

Reaction Steps

100 ml of a 1.6 M solution of n-butyllithium in hexane are added at −78° C. to 15.1 g of 4-bromo-2-chlorophenol in 150 ml of tetrahydrofuran, and the reaction mixture is stirred at −78° C. for 1 hour. 10.1 g of 4,4-dimethylcyclohexanone (compound 3.1) are added and the reaction mixture is stirred at −78° C. for a further 30 minutes and then at room temperature for 12 hours. The reaction mixture is hydrolysed with 1 N hydrochloric acid solution and extracted with ethyl acetate. The organic phase is dried over magnesium sulphate and the solvents are evaporated off under reduced pressure. The solid obtained is purified by chromatography on a column of silica gel, eluting with a cyclohexane/ethyl acetate mixture varying from 98/2 to 90/10 (v/v). 11.8 g of solid are obtained.

Provenance & Evidence