反应详情

0.36 g of 5-hydroxymethyl-2-furaldehyde was dissolved in 10 ml of ethyl ether, and under a nitrogen atmosphere, a ethyl ether solution (2 ml) of 0.25 g of phosphorus tribromide was added dropwise at 0° C. After the mixture was stirred at room temperature for 30 minutes, 0.70 g of potassium carbonate and a dimethylformamide solution (15 ml) of 0.62 g of (E)-N-ethyl-6-methoxy-6-methyl-2-hepten-4-ynylamine hydrochloride were added. The mixture was stirred overnight at room temperature, and then worked up in a customary manner. The product was purified by silica gel column chromatography [hexane/ethyl acetate=2/1] to give 0.62 g of (E)-N-ethyl-N-(6-methoxy-6-methyl-2-hepten-4-ynyl)-5-formyl-2-furylmethylamine as a pale yellow oil.

1. stirringThe mixture was stirred overnight at room temperature
2. customThe product was purified by silica gel column chromatography [hexane/ethyl acetate=2/1]