Ethyl Acetate → 4-Quinoxalin-6-yl-3,6-dihydro-2H-pyridine-1-carboxylic acid tert-butyl ester

Participants

Reaction Conditions

Reaction Steps

A solution containing 6-bromo-quinoxaline (417 mg, 2.0 mmol), 4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-3,6-dihydro-2H-pyridine-1-carboxylic acid tert-butyl ester (600 mg, 1.94 mmol), tetrakis [triphenylphosphine] palladium (108 mg, 0.1 mmol) and sodium carbonate (2 M solution, 3 mL) in 5 mL of dioxane/ethanol/water (7:3:1) was heated at 160° C. using microwave reactor for 15 minutes. After the reaction, ethylacetate was added and the mixture was filtered, washed with water. After concentration under vacuum, the product was purified using column chromatography (5% methanol in dichloromethane)

Provenance & Evidence