75887-43-3
4-bromo-3-(bromomethyl)but-2-enoic acid
→
~87%
61934-55-2
4-溴甲基-5H-呋喃-2-酮
74592-36-2
环亚丙基乙酸乙酯
~81%
5687-73-0
Cyclopropylideneacetic acid
~75%
80904-75-2
3-(hydroxymethyl)-2H-furan-5-one
~66%
541-47-9
3,3-二甲基丙烯酸