Ethyl Acetate → 5-(3,4,5-trimethoxy-phenyl)-1H-pyrrolo[2,3-b]pyridine

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Reaction Steps

5-Bromo-1H-pyrrolo[2,3-b]pyridine (1.54 g, 7.83 mmol), 3,4,5-trimethoxyphenylboronic acid (1.83 g, 8.61 mmol) and dichlorobis(triphenylphosphine)palladium (II) (275 mg, 0.39 mmol) were combined in CH3CN (10 ml) and 1 M Na2CO3 (10 ml) and reacted in a microwave reactor for 5 min at 150° C. EtOAc was added and the mixture was washed with water, brine, dried, evaporated and purified by silica gel chromatography using 0-2% MeOH:DCM to yield 1.86 g (84%) of the title compound. 1H NMR (CDCl3, 300 MHz): δ 9.9 (bs, 1H), 8.54 (d, J=2.1 Hz, 1H), 8.11 (d. J=2.1 Hz, 1H), 7.41 (t, J=2.1 Hz, 1H), 6.82 (s, 2H), 6.58 (t, J=1.5 Hz, 1H), 3.96 (s, 6H), 3.92 (s, 3H).

Provenance & Evidence