Pyridine → HCID 58198422, compound

Participants

Reaction Conditions

Reaction Steps

The crude 6-chloro-pyridine-3-sulfinic acid sodium salt (4.7 mmol) was suspended in DMF (20 mL). Pyridine (0.8 mL) and ethyl α-bromoisobutyrate (1 mL) were added. The reaction was stirred at 50° C. under nitrogen for 18 h. The reaction mixture was partitioned between diethyl ether (100 mL) and water (50 mL). The organic layer was washed with brine (50 mL) and dried over Na2SO4. Filtration, concentration under reduced pressure, followed by column chromatography (silica, eluent heptanes, 0-25% ethyl acetate) afforded 0.83 g of 2-(6-chloro-pyridine-3-sulfonyl)-2-methyl-propionic acid ethyl ester.

Provenance & Evidence