tert-Butyl acetate → HCID 66603844, compound

Participants

Reaction Steps

To a solution of methyl 2-[4-iodo-2-methyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-b]pyridin-3-yl]-2-hydroxyacetate (2.1 g; 5.03 mmol) in tert-butyl acetate (15 mL; 112 mmol) under a nitrogen atmosphere was added perchloric acid 70% (0.342 mL; 5.52 mmol). The reaction was stirred at room temperature for 3 days and quenched by adding a saturated solution of sodium bicarbonate. The mixture was diluted with dichloromethane and the phases were separated. The organic layer was dried over sodium sulphate and concentrated under reduced pressure. Purification by flash-chromatography on silica gel using a gradient of ethylacetate (1-40%) in heptane furnished 0.776 g (32%) of the title compound as a solid.

Provenance & Evidence