反应详情

温度

120 °C

A mixture of 2-bromo-5-methyl-3-phenylimidazo[1,2-a]pyridine (38 mg, 0.13 mmol), tert-butyl {1-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]cyclobutyl}carbamate (see step 4, 64 mg, 0.17 mmol) and potassium phosphate (84.3 mg, 0.40 mmol) in 1.2 ml toluene/ethanol/water (1/2/1) was heated to 120° C. in a single mode microwave reactor (Biotage). This experiment was repeated employing the same protocol. Both reaction mixtures were combined and partitioned between dichloromethane and water. The mixture was filtered through a phase separator and concentrated in vacuo. The crude material was purified by column chromatography (Snap cartridge, hexane/ethyl acetate 95/5->hexane/ethyl acetate 1/1) to give 49 mg of the title compound (34% overall yield).

1. customBoth reaction mixtures
2. custompartitioned between dichloromethane and water
3. filtrationThe mixture was filtered through a phase separator
4. concentrationconcentrated in vacuo
5. customThe crude material was purified by column chromatography (Snap cartridge, hexane/ethyl acetate 95/5->hexane/ethyl acetate 1/1)