Trimethyl orthoformate → HCID 59556706, compound

Participants

Reaction Steps

4-(3-(3-bromo-4-isopropoxyphenyl)-1,2,4-oxadiazol-5-yl)benzaldehyde (0.551 g, 1.423 mmol), molecular sieve (4A, 8-12 mesh, 130 mg) and p-toluenesulfonic acid monohydrate (0.037 g, 0.195 mmol) were added in trimethyl orthoformate (4 ml, 36.2 mmol) and methanol (6 ml), the reaction mixture was heated at 80° C. for 16 hr. The solution was cooled, the reaction mixture was concentrated to afford grey solid, which was purified via silica gel chromatography (12 g, 20% EtOAc:Heptane) to afford 3-(3-bromo-4-isopropoxyphenyl)-5-(4-(dimethoxymethyl)phenyl)-1,2,4-oxadiazole (0.61 g, 1.366 mmol, 96% yield) as white solid.

Provenance & Evidence