609-11-0
2,3-二溴正丁酸乙酯
+
120-80-9
邻苯二酚
→
67770-59-6
ethyl 2-methyl-2,3-dihydro-1,4-benzodioxine-3-carboxylate
103204-87-1
2-methyl-2,3-dihydro-1,4-benzodioxine-3-carboxylic acid