Write IUPAC names of the following compounds:

Solution:

(a)

IUPAC name: 2-Methylbut-2-ene

(b) $\stackrel{1}{\mathrm{C}} \mathrm{H}_{2}=\stackrel{2}{\mathrm{C}} \mathrm{H}-\stackrel{3}{\mathrm{C}} \equiv \stackrel{4}{\mathrm{C}}-\stackrel{5}{\mathrm{C}} \mathrm{H}_{3}$

IUPAC name: Pen-1-ene-3-yne

(c)   can be written as:

$\mathrm{H}_{2} \stackrel{1}{\mathrm{C}}=\stackrel{2}{\mathrm{C}} \mathrm{H}-\mathrm{CH}^{3}=\stackrel{4}{\mathrm{C}} \mathrm{H}_{2}$

IUPAC name: 1, 3-Butadiene or Buta-1,3-diene

(d)

IUPAC name: 4-Phenyl but-1-ene

(e)  

IUPAC name: 2-Methyl phenol

(f)

IUPAC name: 5-(2-Methylpropyl)-decane

(g)

IUPAC name: 4-Ethyldeca-1, 5, 8-triene