5445-51-2
1,1-环丁基二甲酸
→
~74%
89639-43-0
3-chlorocyclobutane-1,1-dicarboxylic acid
51816-01-4
cyclobutane-1,1-dicarbonyl chloride
89582-02-5
3-chlorocyclobutane-1,1-dicarbonyl chloride