2a,3,4,8b-tetrahydrocylobuta[a]naphthalen-2(1H)-one

2-acetyl-1-hydroxy-1-trimethylsilyltetrahydronaphthalene

1,2-二乙烯基苯

2,2-dichloro-3-(2-vinylphenyl)cyclobutan-1-one

2a,3,4,8b-tetrahydro-1H-cyclobuta[a]naphthalen-2-one