Water → HCID 66696242, compound

Participants

Reaction Conditions

Reaction Steps

Under an argon atmosphere, to a mixture of 1100 mg of tert-butyl 5-bromo-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-1-carboxylate, 1062 mg of a 2,4,6-trivinylboroxine/pyridine complex, 1020 mg of potassium carbonate, 3 mL of 1,4-dioxane/water (4/1) was added 215 mg of tetrakis(triphenylphosphine)palladium. The reaction mixture was stirred at 80° C. overnight. To the reaction mixture were added water and ethyl acetate and the aqueous layer was separated. The organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (n-hexane/ethyl acetate) to obtain 783 mg of tert-butyl 5-vinyl-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-1-carboxylate as a yellow oil.

Provenance & Evidence