1,2-二乙炔-苯

5,9-甲桥-6,7,8,9-四氢-7H-苯并环庚烯-7-酮

1-ethenyl-2-prop-1-en-2-ylbenzene

1-(3,4-dihydronaphthalen-2-yl)ethanone

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