Dimethylformamide → HCID 68460417, compound

Participants

Reaction Conditions

Reaction Steps

Under a nitrogen stream, to a solution of 2-[3-bromo-5-((4-ethylphenyl)methyl)thiophen-2-yl]-ethanol (2.55 g, 7.84 mmol) in a mixture of anhydrous DMF (15 ml) and methylene chloride (15 ml), trityl chloride (3.29 g, 11.8 mmol) was added. To this solution, triethylamine (1.64 ml, 11.8 mmol) and 4-dimethylaminopyridine (77 mg, 0.63 mmol) were added at 0° C. The reaction mixture was stirred at 40° C. for 4 hours. After addition of water, the reaction mixture was extracted with methylene chloride. The organic layer was washed with saturated aqueous sodium chloride and dried over sodium sulfate. After filtration, the solvent was distilled off under reduced pressure and the resulting residue was purified by silica gel column chromatography (developing solution=ethyl acetate:n-hexane (1:20)) to give the titled compound (3.60 g, 81%).

Provenance & Evidence