67-56-1
甲醇
+
6213-90-7
(Z)-3-chlorobut-2-enoic acid
→
6214-25-1
methyl 3-chlorobut-2-enoate
105-45-3
乙酰乙酸甲酯
6372-01-6
(E)-methyl 3-chloro-2-butenoate
590-93-2
2-丁炔酸