Additional Ring Systems polycyclics-molecules containing more than one ring spirocyclics one carbon atom is common to two rings bridged and fused polycyclics two or more atoms are common to more than one ring
Additional Ring Systems polycyclics - molecules containing more than one ring spirocyclics - one carbon atom is common to two rings bridged and fused polycyclics - two or more atoms are common to more than one ring
桥环与螺环的命名 3 8 螺4.5]癸烷 4-甲基-螺2.4]庚烷 spiro[3.7]undecane
螺[4.5]癸烷 6 5 4 3 2 1 CH3 10 9 8 6 7 5 3 4 2 1 4-甲基-螺[2.4]庚烷 桥环与螺环的命名 spiro[3.7]undecane
Bicyclic Alkanes Fused rings(稠环)share two adjacent carbons. Bridged rings(桥环)share two nonadjacent C's. bicyclo[3.1.0]hexane bicyclo[2.2.1]heptane
Bicyclic Alkanes ▪Fused rings（稠环）share two adjacent carbons. ▪Bridged rings（桥环）share two nonadjacent C’s. bicyclo[3.1.0]hexane bicyclo[3.1.0]hexane bicyclo[2.2.1]heptane bicyclo[2.2.1]heptane
Polycyclic Rings Bicycloalkanes: bicyclo[x.y.z]alkane(x≥y≥z) numbering starts at a bridgehead,proceeds around the largest bridge first,then around successively smaller bridges bicyclo[4.4.0]decane 二环[4.4.0]癸烷（十氢化萘) bicyclo[2.2.1.]heptane bicyclo[4.1.0]heptane bicyclo[3.2.1]octane
bicyclo[4.4.0]decane bicyclo[2.2.1.]heptane bicyclo[4.1.0]heptane bicyclo[3.2.1]octane 二环[4.4.0]癸烷（十氢化萘） Bicycloalkanes: bicyclo[x.y.z]alkane (x y z) numbering starts at a bridgehead, proceeds around the largest bridge first, then around successively smaller bridges C C Cz Cy Cx Polycyclic Rings
Polycyclic Rings 3 6 6 2,7,7-三甲基二环 三环2.2.1.02,61庚烷 [2.2.1]庚烷 三环[3.3.1.137]癸烷 (金钢烷)
2,7,7-三甲基二环 [2.2.1]庚烷 7 6 5 4 3 2 1 三环[3.3.1.13、7]癸烷 (金钢烷) 9 8 7 6 5 4 3 2 1 7 6 5 4 3 2 1 三环[ 2.2.1.02,6]庚烷 三环[3.3.1.13、7]癸烷 (金钢烷) 三环[ 2.2.1.02,6 2,7,7-三甲基二环 ]庚烷 [2.2.1]庚烷 三环[3.3.1.13、7]癸烷 (金钢烷) 三环[ 2.2.1.02,6]庚烷 三环[3.3.1.13、7]癸烷 (金钢烷) 三环[ 2.2.1.02,6 2,7,7-三甲基二环 ]庚烷 [2.2.1]庚烷 三环[3.3.1.13、7]癸烷 (金钢烷) 三环[ 2.2.1.02,6]庚烷 Polycyclic Rings