Question

name the IUPAC name of ​

Answer 1

When naming organic compounds, the IUPAC (International Union of Pure and Applied Chemistry) nomenclature (naming scheme) is used. This is to give consistency to the names. It also enables every compound to have a unique name, which is not possible with the common names used (for example in industry).

Answer 2

Answer:

1. =>   3-methylpent-1-ene

2. =>  1, 2-dimethylcyclobutane

3. =>  cyclohex-1-ene

4. =>   3-ethyl-1, 1-dimethylcyclohexane

Explanation:

POINTS FOR BOND LINE NOTATION :-

Bond line notation is a shorthand way of writing organic structural formulas.

• Only the bonds between the carbon atoms are shown as lines.

• The vertices and end of lines represent the carbon atoms.

• All atoms other than carbon, plus any hydrogen atoms attached to them, are shown.

(methyl group (-CH3) is shown in the figure below)

-  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  

RULES FOR NOMENCLATURE :-

To write the IUPAC name of a compound we have to keep in mind :-

name of substituent with their position + word root for longest chain + primary suffix

Step 1:-

• Count the number of carbons to detect the longest chain.

• Also keep in mind, that the chosen chain has the greatest number of substituents and functional groups.

Step 2 :-

See if the compound has any double or triple bond

1. if it has double bound then primary suffix is ene
2. triple bond then primary suffix is yne
3. if no triple or double bond then primary suffix is ane

Step 3 :-

find the substituents

 ( a substituent is an atom or group of atoms which replaces one or more hydrogen atoms on the parent chain of a hydrocarbon)

And we know that ,

name of substituent with their position + word root for longest chain + primary suffix

[=> a hyphen ' - '  is placed in between a letter and a number

=> 2 numbers are separated by a comma]