ORGANIC CHEMISTRY Chapter 4 (b) polycyclic Compounds o Compounds consisting of three or more rings may be named by adding the appropriate prefix tricyclo- tetracyclo-, etc. before the name of the open-chain hydrocarbon o a polycyclic system is regarded as containing a number of rings equal to the number of scissions required to convert the system into an open-chain compound 三环32.1.024辛烷 2 Tricyclo 3. 2.1.0- octane Department of Chemistry, Xiamen UniversityORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 4 (b) Polycyclic Compounds Compounds consisting of three or more rings may be named by adding the appropriate prefix "tricyclo-", "tetracyclo-", etc. before the name of the open-chain hydrocarbon. A polycyclic system is regarded as containing a number of rings equal to the number of scissions required to convert the system into an open-chain compound. 2 3 4 1 5 6 7 8 三环[3.2.1.02,4]辛烷 Tricyclo[3.2.1.02,4]octane