Can a benzene ring have oxygen?
Many simple aromatic rings have trivial names. Simple aromatic rings can be heterocyclic if they contain non-carbon ring atoms, for example, oxygen, nitrogen, or sulfur. They can be monocyclic as in benzene, bicyclic as in naphthalene, or polycyclic as in anthracene.
What are 5 carbon rings called?
cyclic
Compounds containing 5 or 6 carbons are called cyclic.
What does a circle in a carbon ring mean?
The inner circle indicates that the valence electrons are shared equally by all six carbon atoms (that is, the electrons are delocalized, or spread out, over all the carbon atoms). It is understood that each corner of the hexagon is occupied by one carbon atom, and each carbon atom has one hydrogen atom attached to it.
What is a carbon ring called?
Aromatic rings (also known as aromatic compounds or arenes) are hydrocarbons which contain benzene, or some other related ring structure. Benzene, C6H6, is often drawn as a ring of six carbon atoms, with alternating double bonds and single bonds: This simple picture has some complications, however.
What is aryl ring?
In the context of organic molecules, aryl is any functional group or substituent derived from an aromatic ring, usually an aromatic hydrocarbon, such as phenyl and naphthyl. A simple aryl group is phenyl (with the chemical formula C6H5), a group derived from benzene.
What does a cyclohexane with a circle in the middle mean?
To help illustrate this point, benzene is often drawn as a cyclohexane ring with a circle in the middle, which helps show the delocalization of the electrons in the double bonds. Another factor increasing the stability of benzene is the bond angles between carbons.
What is a 8 carbon ring called?
For more complicated substituents, the benzene ring is named as a substituent, in which case it is called “phenyl.” For instance, an eight-carbon chain with a benzene ring on the third carbon is called “3-phenyloctane.”
Can cyclohexane be a substituent?
Because cyclopropane is a substituent, it would be named a cyclopropyl-substituted alkane….IUPAC Rules for Nomenclature.
| Cycloalkane | Cycloalkyl |
|---|---|
| cyclohexane | cyclohexyl |
| cycloheptane | cycloheptyl |
| cyclooctane | cyclooctyl |
| cyclononane | cyclononanyl |