1,4-二氧螺环[4,5]癸烷

2-(2-chlorophenyl)-1,3-dioxolane

2-(3-溴-4-氟苯基)-1,3-二恶戊环

6-溴-1,4-二氧杂螺[4.4]壬-6-烯

6-戊基-1,4-二氧杂螺[4.4]壬烷