27063-48-5
5-降冰片烯-2-酰氯
→
~80%
71028-82-5
9,12 dispiro <5.1.5.1> tetradecadiene-2,10 dione-7.14
71028-85-8
3,4,11,12-tetramethyldispiro[5.1.58.16]tetradeca-3,11-diene-7,14-dione