Dimethylformamide → Methyl 2,3-dihydro-8-hydroxy-1,4-benzodioxin-6-carboxylate

Participants

Reaction Conditions

Reaction Steps

To 20 mL of an N,N-dimethylformamide solution containing 2.25 g of methyl gallate, 1.3 mL of 1,2-dibromoethane and 4.05 g of potassium carbonate were added, and the mixture was stirred at 100° C. overnight. The reaction mixture was cooled to room temperature, then fed into water, and the resultant solution was extracted with a mixed solvent of ethyl acetate:toluene of 5:1. The organic layer was washed with water and an aqueous saturated sodium chloride solution, and dried over anhydrous magnesium sulfate, and the solvent was removed under reduced pressure to obtain 1.66 g of a brown oily substance, methyl 8-hydroxy-2,3-dihydro-1,4-benzodioxin-6-carboxylate.

Provenance & Evidence