Butylamine → HCID 17867252, compound

Participants

Reaction Steps

A solution of 3-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthyl)-3-methyl-2H-1-benzofuran-5-carboxylic acid (100 mg, 0.275 mmol), 1-hydroxybenzotriazole (74 mg, 0.55 mmol), 1,3-dicyclohexylcarbodiimide (112 mg, 0.55 mmol) and butylamine (19 mg, 0.255 mmol) in 5 ml of THF and 2 ml of DMF is stirred at room temperature for 6 hours. 30 ml of water and 30 ml of ethyl acetate are added. After stirring and separation of the phases by settling, the aqueous phase is extracted with 2×30 ml of ethyl acetate. The organic phases are then combined and washed twice with 30 ml of water, then dried over magnesium sulphate and concentrated on a rotary evaporator under vacuum at 40° C. The product is then purified by flash chromatography on a column of silica (50% heptane/50% ethyl acetate).

Provenance & Evidence