83769-09-9
(2-bromo-3-oxobutyl)dimethylsulfonium bromide
→
~85%
61203-01-8
3-bromobut-3-en-2-one
25109-57-3
3,4-二溴丁酮
78-94-4
丁烯酮 甲基乙烯基酮
~80%
104023-23-6
~69%
~57%
+
67-56-1
甲醇
61203-07-4
4-acetyloxolane-2,3-dione
7726-95-6
溴素
144-62-7
草酸
854258-70-1
(2-bromo-1-methylen-allyl)-methyl ether