Acetic Anhydride → HCID 19774210, compound

Participants

Reaction Conditions

Reaction Steps

38.2 ml (0.4 mol) of acetic anhydride were added dropwise to a solution of 76 g (0.23 mol) of 1-(2,4-dichlorophenyl)-2-(3-pyridyl)-3-methylbutane-1,2-diol, 197.7 ml (1.318 mol) of triethylamine and about 0.5 g (4 mmol) of 4-N,N-dimethylaminopyridine in 1 1 of methylene chloride while heating at 35° C. After cooling to room temperature, the mixture was stirred for a further 30 minutes and then poured into 500 ml of a saturated sodium bicarbonate solution. The organic phase was separated off and was worked up in a conventional manner to obtain the product. The oily crude product was crystallized by stirring with ethyl acetate. Yield: 56%.

Provenance & Evidence