tert-Butanol → HCID 11746573, compound

Participants

Reaction Steps

To a 500 mL round bottom flask was added 10.40 g (0.0426 mol) of 2,4,6-trichlorobenzoyl chloride. To this was added 300 mL of THF followed by 7.65 g (0.0429 mol) of 3-benzoylpropionic acid (I). Once the 3-benzoylpropionic acid had dissolved, then 6.1 mL (0.0830 mol) of triethylamine was added. The solution was stirred for 6 hours, after which the THF solution was filtered to remove the triethylamine hydrochloride. The filtrate was rotoevaporated to yield a light beige solid. To this solid was added 200 mL of benzene followed by 6.0 mL (0.104 mol) of 2-methyl-2-propanol and the mixture was stirred with heating to dissolve all of the solid. After complete dissolution, 5.40 g (0.0442 mol) of DMAP was added to the solution. The solution immediately turned dark red and was stirred at room temperature for 36 hours. The solution was washed with 10% aqueous HCl solution, followed by 2×5% aq. NaOH solution and finally with water. The organic layer was then dried (MgSO4), filtered and concentrated. The resultant oil was purified twice by column chromatography (silica gel, Eluent: 20% ethyl acetate: hexanes) and the resultant oil obtained was distilled under reduced pressure to yield 6.45 g (64%) of t-butyl 3-benzoylpropionate as a colorless oil.

Provenance & Evidence