Dimethylformamide → methyl [1-methyl-3-[3-(5-methyl-2-phenyl-4-oxazolylmethoxy)-5-isoxazolylmethoxy]-1H-pyrazol-4-yl]acetate

Participants

Reaction Conditions

Reaction Steps

A mixture of methyl (3-hydroxy-1-methyl-1H-pyrazol-4-yl)acetate (298 mg), 5-chloromethyl-3-(5-methyl-2-phenyl-4-oxazolylmethoxy)isoxazole (533 mg), potassium carbonate (484 mg) and N,N-dimethylformamide (10 ml) was stirred at 60° C. for 4 hrs. The reaction mixture was poured into water and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine, dried (MgSO4) and concentrated. The residue was subjected to silica gel column chromatography, and methyl [1-methyl-3-[3-(5-methyl-2-phenyl-4-oxazolylmethoxy)-5-isoxazolylmethoxy]-1H-pyrazol-4-yl]acetate (701 mg, yield 91%) was obtained as a colorless oil from a fraction eluted with ethyl acetate-hexane (2:1, volume ratio).

Provenance & Evidence