7-(2-Hexyl)-2,2-dimethyl-4-(pyridin-4-yl)-2H-chromen-5-ol 、
2-溴甲基萘 以
丙酮 为溶剂,
反应 6.0h,
以to yield 4-[7-(2-hexyl)-5-hydroxy-2,2-dimethyl-2H-chromen-4-yl]-1-(2-naphthylmethyl) pyridinium bromide (8.20 g) m.p. 236°- 239°的产率得到4-[7-(2-hexyl)-5-hydroxy-2,2-dimethyl-2H-chromen-4-yl]-1-(2-naphthylmethyl) pyridinium bromide