Tetrahydrofuran → HCID 49804856, compound

Participants

Reaction Steps

To a solution of ethyl [2-ethyl-4-(p-tolyl)-5,6,7,8-tetrahydro[1]benzothieno[2,3-b]pyridin-3-yl]acetate (0.491 g; 1.25 mmol) in dry DMF (5 mL) at −10° C. was added a 1N solution of LHMDS in THF (1.38 mL; 1.38 mmol) and 1-propyliodide (0.183 mL; 1.88 mmol). The reaction mixture was allowed to warm up to room temperature and the stirring was carried on for 3 h. The reaction mixture was quenched by addition of a saturated solution of ammonium chloride and the mixture was extracted with ethyl acetate. The organic layer was washed with water, brine, dried over sodium sulphate, filtered and concentrated under reduced pressure. The residue was purified by flash chromatography on silica gel to afford 0.322 g (59%) of the title compound as a light yellow oil.

Provenance & Evidence