90-33-5
4-甲基伞形酮
+
106-93-4
二溴乙烷
→
~81%
7471-76-3
7-(2-bromoethoxy)-4-methylchromen-2-one
108-46-3
间苯二酚
66346-10-9
4-methyl-7-[2-(4-methyl-2-oxochromen-7-yl)oxyethoxy]chromen-2-one