Benzene Compound

IUPAC & GOC of Class 12

Benzene Compound

For naming aromatic compounds, no special rules are required, but are named substituted benzene.

The benzene ring is considered to be a parent and alkyl groups, halogens and the nitro group are named as prefix to benzene.

Benzene Compound

    Benzene Compound

Benzene Compound

Benzene Compound

1, 3, 5 – tribromobenzene

Benzene Compound

2 – chloro – 4 – nitro aniline

Benzene Compound

2 – hydroxyl – 4 – nitro – benzoic acid

When a benzene ring is attached to an alkane chain with a functional group or to an aklane chain of two or more carbon atoms, then benzene is considered as a substituent (phenyl) instead of a parent.

Benzene Compound

Benzene Compound

When more than one group is present on benzene ring then following prefix are giving to certain organic compound.

    Benzene Compound

2 & 6 = Ortho or ‘o’

3 & 5 = Meta or ‘m’

4 = Para or ‘p’

With respect to G.

 

Benzene Compound

Benzene Compound

Benzene Compound

The following names are given to certain aromatic hydrocarbon residues formed by the loss of one or more hydrogen atoms from the parent hydrocarbon.

Benzene Compound

Benzene Compound

Benzene Compound

Benzene Compound

Benzene Compound

Benzene Compound

ALICYCLIC (CYCLIC COMPOUNDS)

IUPAC name-cycloalkane (saturated), cyclo alkene, cyclo alkyne (unsaturated)

Examples:

Benzene Compound

Benzene Compound

Benzene Compound

Note:

Naming of cyclic compounds containing functional group – same as open chain compound.

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