67-56-1
甲醇
+
6939-36-2
4-(2-甲基苯基)-4-氧代丁酸
→
~68%
85616-39-3
methyl 4-(2-methylphenyl)-4-oxobutanoate
932-31-0
邻甲苯基溴化镁
1490-25-1
丁二酸单甲酯酰氯
~38%
292638-85-8
~2%