Sodium Carbonate → HCID 25004351, compound

Participants

Reaction Steps

To a solution of intermediate 18 (0.57 g, 1.7 mmol) in 1,4-dioxane (2 ml) and a saturated solution of Na2CO3 (2 ml) was added intermediate 9 (0.45 g, 1.7 mmol). The resulting solution was degassed using a stream of nitrogen and to this was added Pd(PPh3)4 (0.19 mg, 0.17 mmol). The reaction was then microwaved in a sealed tube at 150° C. for 10 minutes. The resulting cooled reaction mixture was then diluted with EtOAc and filtered through a pad of diatomaceous earth. The filtrate was washed with brine, dried over Na2SO4 and concentrated in vacuo. The crude reaction mixture was then purified by column chromatography (silica gel; DCM to DCM/EtOAc up to 30% as eluent). The desired fractions were collected and evaporated in vacuo to yield compound 4 (0.108 g, 17%).

Provenance & Evidence