38
1 Parent Structures
3,6' :2' ,6"-Dispiroter [bicyclo [3.1.0 ]hexa ]-1,3',1"( 5")-triene
IH,I'H,I"H,3'H-2,2':7',2"-Dispiroter[naphthalene]
Note:
Spiro systems in which the spiro atom is at the same time incorporated into
a third ring - i. e., where the spiro junction is not free - are not named as
spiro compounds but treated as fused polycycles.
9, 16b-Dihydrofluoreno [8a,9-1] phenanthrene
12
4aH-Benzo[d]naphthalene
1.2.1.2.4
Hydrocarbon Ring Systems Linked Through Single or Double Bonds;
Ring Assemblies
If two identical carbocycles are connected by single or double bonds they
are designated as bi ... yl or ... ylidene derivatives. Alternatively, such
1 Parent Structures
3,6' :2' ,6"-Dispiroter [bicyclo [3.1.0 ]hexa ]-1,3',1"( 5")-triene
IH,I'H,I"H,3'H-2,2':7',2"-Dispiroter[naphthalene]
Note:
Spiro systems in which the spiro atom is at the same time incorporated into
a third ring - i. e., where the spiro junction is not free - are not named as
spiro compounds but treated as fused polycycles.
9, 16b-Dihydrofluoreno [8a,9-1] phenanthrene
12
4aH-Benzo[d]naphthalene
1.2.1.2.4
Hydrocarbon Ring Systems Linked Through Single or Double Bonds;
Ring Assemblies
If two identical carbocycles are connected by single or double bonds they
are designated as bi ... yl or ... ylidene derivatives. Alternatively, such