14
Cyclobutane-l,3-diyl
formerly:
1,3-Cyclobutylene
Cyclohex -4-ene-l ,2-diyl
formerly:
Cyclohex -4-en-l ,2-ylene
1 Parent Structures
Cyclohept-6-en2-yne-l-yl-4-ylidene
The designations benzene, phenyl and o,m,p-phenylene are retained as
trivial names.
Phenyl
Abbrev.: Ph
1,3-Phenylene
(m-Phenylene)
Monocyclic polyenes containing the maximum number of non-cumulative
double bonds (for short called: mancude systems) and having the general
composition CnHn or CnHn + I (n > 6) can also be named as [nlannulenes.
[121Annulene
(Cyclododeca -
1,3,5,7,9,11-hexaene)
1.2.1.2
Polycyclic Hydrocarbons
1.1.1.1.1
Fused Polycyclic Hydrocarbons
IH-[91Annulene
(Cyclonona-l,3,5,7 -tetraene)
The nomenclature of these compounds in which at least two highly unsaturated rings are fused together through at least two common C-atoms
is based on an extended series of trivial names. The most important of
Cyclobutane-l,3-diyl
formerly:
1,3-Cyclobutylene
Cyclohex -4-ene-l ,2-diyl
formerly:
Cyclohex -4-en-l ,2-ylene
1 Parent Structures
Cyclohept-6-en2-yne-l-yl-4-ylidene
The designations benzene, phenyl and o,m,p-phenylene are retained as
trivial names.
Phenyl
Abbrev.: Ph
1,3-Phenylene
(m-Phenylene)
Monocyclic polyenes containing the maximum number of non-cumulative
double bonds (for short called: mancude systems) and having the general
composition CnHn or CnHn + I (n > 6) can also be named as [nlannulenes.
[121Annulene
(Cyclododeca -
1,3,5,7,9,11-hexaene)
1.2.1.2
Polycyclic Hydrocarbons
1.1.1.1.1
Fused Polycyclic Hydrocarbons
IH-[91Annulene
(Cyclonona-l,3,5,7 -tetraene)
The nomenclature of these compounds in which at least two highly unsaturated rings are fused together through at least two common C-atoms
is based on an extended series of trivial names. The most important of