4-vinylbenzocyclobutene

3-vinylbicyclo[4.2.0]octa-1,3,5-triene

1-(cyclobut-1-en-1-yl)-4-ethenylbenzene

3-Ethenylbicyclo[4,2,0]octa-1,3,5-triene

4-Vinylbenzocyclobutene / 3-Ethenylbicyclo[4,2,0]octa-1,3,5-triene

4-VBCB 4-Vinylbenzocyclobutene