Question

Write the structures of the following compounds.

2-methyl propane.

Answer 1

Definition of IUPAC names

IUPAC nomenclature of organic chemistry is a method of naming organic chemical compounds as recommended by the International Union of Pure and Applied Chemistry.

Step 1

• ‘Prop’ means continuous chain with the maximum number of carbon atoms, here the chain is having 3 carbon atoms:$\mathrm{C}-\mathrm{C}-\mathrm{C}$

Step 2

• There is 1 substituent (methyl group) at the second position: $\underset{1}{\mathrm{C}}-\underset{2}{\mathrm{C}\left({\mathrm{CH}}_3\right)}-\underset{3}{\mathrm{C}}$

Step 3

• The suffix ‘ane’ suggests a single bond saturated carbon is present:$\underset{}{{\mathrm{H}}_3\mathrm{C}}-\underset{}{\mathrm{CH}\left({\mathrm{CH}}_3\right)}-\underset{}{{\mathrm{CH}}_3}$

Therefore, the structure is $\underset{}{{\mathrm{H}}_3\mathrm{C}}-\underset{}{\mathrm{CH}\left({\mathrm{CH}}_3\right)}-\underset{}{{\mathrm{CH}}_3}$