反应详情

To a mixture of [4-[[2-(2-furyl)-5-methyl-4-oxazolyl]methoxy]-3-methoxyphenyl]methanol (5.00 g), 2-chloro-3-cyanopyridine (2.65 g) and N,N-dimethylformamide (150 mL) was added sodium hydride (60%, oil, 0.70 g) at room temperature and the mixture was stirred for 15 hrs. Water was added to the reaction mixture and the precipitated crystals were collected by filtration to give crystals (6.60 g, yield 99%) of 3-cyano-2-[4-[[2-(2-furyl)-5-methyl-4-oxazolyl]methoxy]-3-methoxybenzyloxy]pyridine. Recrystallization from ethyl acetate-hexane gave colorless prism crystals. melting point: 137-138° C.

1. filtrationthe precipitated crystals were collected by filtration