52708-23-3
spiro[2.4]hept-6-ene
→
6749-50-4
spiro[2.4]heptan-7-ol
75-11-6
二碘甲烷
+
20461-31-8
2-methylidenecyclopentan-1-ol
5771-32-4
Spiro[2,4]heptan-4-one