ORGANIC CHEMISTRY Chapter 4 o Monospiro compounds consisting of only two alicyclic rings as components are named by placing"spiro"before the name of the normal acyclic hydrocarbon of the same total number of carbon atoms g The number of carbon atoms linked to the spiro atom in each ring is indicated in ascending order in brackets placed between the spiro prefix and the hydrocarbon name 9 The carbon atoms in monospiro hydrocarbons are numbered consecutively starting with a ring atom next to the spiro atom, first through the smaller ring(if such be present)and then through the spiro atom and around the second ring Cl 104 3 螺34]辛烷6氯螺[4.5]癸烷 Spiro[3. octane 6-Chlorospiro[4.5 ]decane Department of Chemistry, Xiamen UniversityORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 4 Monospiro compounds consisting of only two alicyclic rings as components are named by placing "spiro" before the name of the normal acyclic hydrocarbon of the same total number of carbon atoms. The number of carbon atoms linked to the spiro atom in each ring is indicated in ascending order in brackets placed between the spiro prefix and the hydrocarbon name. The carbon atoms in monospiro hydrocarbons are numbered consecutively starting with a ring atom next to the spiro atom, first through the smaller ring (if such be present) and then through the spiro atom and around the second ring. Cl 螺[3.4]辛烷 Spiro[3.4]octane 6-Chlorospiro[4.5]decane 6 氯螺[4.5]癸烷 1 2 3 3 1 2 4 5 5 6 7 8 9 10 6 7 8 4