1,2-Dichloroethylene undergoes a stereospecific photoreaction with benzonitrile, the three tolunitriles, α,α,α-trifluorotoluene, fluorobenzene, and chlorobenzene to give substituted 6- 7- dichlorotricyclo[3,3,0,02,8]oct-3-enes which on treatment with base yield cyclised products or semibullvalenes: phenol yields dichlorobicyclo[3.2.1]oct-2-en-8-one with this ethylene photochemically.
1,2-二氯乙烯与
苄腈,三个
甲苯腈,α,α,α-
三氟甲苯,
氟苯和
氯苯进行立体定向光反应,生成取代的6- 7-二
氯三环[3,3,0,0 2,8 ] oct-用碱处理的3-
烯类可生成环化产物或半布尔
戊烯:
苯酚可通过该
乙烯进行光
化学反应生成二
氯双环[3.2.1] oct-2-en-8-one。