7796-72-7
贲亭酸乙酯
→
~81%
78984-86-8
5-(bromomethyl)-4,4-dimethyloxolan-2-one
+
121402-79-7
ethyl 3,3-dimethyl-4,5-dibromo pentanoate
65371-43-9
4,4-二甲基-5-亚甲基二氢呋喃-2(3H)-酮