Hexane → 1-(5-Methyl-1,3-thiazol-2-yl)ethan-1-one

Participants

Reaction Conditions

Reaction Steps

Commercially available 5-methyl-1,3-thiazole (218 mg) was dissolved in tetrahydrofuran (5 ml) to prepare a solution which was then cooled to −78° C. A hexane solution (1.56 M) (1.4 ml) of n-butyllithium was slowly added to the cooled solution over a period of 10 min, and the mixture was stirred at −78° C. for 2 hr. N-Methoxy-N-methylacetamide (206 mg) was dissolved in tetrahydrofuran (2 ml) to prepare a solution which was then slowly added thereto over a period of 10 min, followed by stirring at −78° C. for 2 hr. The cooling bath was removed, an aqueous saturated ammonium chloride solution (5 ml) was added, and the mixture was stirred for 30 min. Further, water (5 ml) was added thereto, and the reaction solution was extracted with ethyl acetate. The organic layer was washed with saturated brine and was dried over sodium sulfate. The solvent was removed, and the residue was purified by chromatography on silica gel using hexane/ethyl acetate for development to give the title compound (267 mg, 86%).

Provenance & Evidence