Hydrochloric Acid → 4-Tert-butyl-2-[5-(2-hydroxymethylphenylthiomethyl)benzofuran-2-yl]thiazole

Participants

Reaction Steps

To a mixture of 4-tert-butyl-2-[5-(2-carboxyphenylthiomethyl)benzofuran-2-yl]thiazole (0.65 g) in tetrahydrofuran (10 ml), lithium aluminum hydride (0.12 g) was added under cooling with ice bath. After being stirred at ambient temperature for 5 hours, the resulting mixture was poured into a mixture of ice and diluted aqueous hydrochloric acid and extracted with toluene. The organic layer was washed with brine, dried over magnesium sulfate, and concentrated under reduced pressure. The residue was subjected to column chromatography on silica gel and eluted with a mixture of ethyl acetate and toluene (1:9). The fractions containing object compound were combined and concentrated under reduced pressure to give 4-tert-butyl-2-[5-(2-hydroxymethylphenylthiomethyl)benzofuran-2-yl]thiazole (0.45 g).

Provenance & Evidence