Common Name Of Alkene Vinyl

An industrially important example is vinyl chloride precursor to pvc a plastic.
Common name of alkene vinyl. Based on the name of the parent compound the alkene name ends with the suffix alkene. It is a highly flammable weakly alkaline water miscible liquid with a distinctive unpleasant fish like smell pyridine is colorless but older or impure samples can appear yellow. There are a couple of unique ones like ethenyl s common name is vinyl and 2 propenyl s common name is allyl. Whereas the names of alkanes end with the suffix ane alkenes end with the suffix ene a two carbon alkene therefore is named ethene.
However the iupac recommends using the name alkene only for acyclic hydrocarbons with just one double bond. That you should know are. Remove the ane suffix and add ylene. Remove the ane suffix and add ylene.
The general formula for alkenes with one double bond is c n h 2 n. Ethylene propylene isobutylene and isoprene. Alkadiene alkatriene etc or polyene for acyclic hydrocarbons with two or more double. The longest chain chosen for the root name must include both carbon atoms of the double bond.
Draw the kekulé condensed or shorthand structure of an alkene cyclic or acyclic given its iupac name. The ene suffix ending indicates an alkene or cycloalkene. Pyridine is a basic heterocyclic organic compound with the chemical formula c 5 h 5 n it is structurally related to benzene with one methine group ch replaced by a nitrogen atom. A three carbon alkene is named propene and an alkene in a five membered ring is named cyclopentene as shown here.
There are a couple of unique ones like ethenyl s common name is vinyl and 2 propenyl s common name is allyl. Iupac rules for alkene nomenclature. Substituents are to be numbered according to their positions in the chain and listed alphabetically. Alkenes have a carbon to carbon double bond.
That you should know are vinyl substituent h 2 c ch allyl substituent h 2 c ch ch 2 allene molecule h 2 c c ch 2. By arthur winter. Alkenes can be straight chain branched chain or cyclic. In chemistry an alkene is a hydrocarbon that contains a carbon carbon double bond.
If you know how to name alkanes adding alkene nomenclature to your repertoire is a fairly straightforward task. The root chain must be numbered from the end nearest a double bond carbon atom if the double bond is in the center of the chain the nearest substituent rule is used to determine the end where numbering. The chain is to be numbered from the end that gives the lowest number to the carbon in double bond. Simple alkenes often have common names but all alkenes can be named by the system of the international union of pure and applied chemistry and have the ending ene.
In chemistry vinyl or ethenyl abbreviated as vi is the functional group with the formula c h ch 2 it is the ethylene iupac ethene molecule h 2 c ch 2 with one fewer hydrogen atom. The term is often used as synonym of olefin that is any hydrocarbon containing one or more double bonds. Give the iupac equivalent of the following trivial names.