Question
Write the structural formulae for the following IUPAC names: 2-Chlorobutane
✓
Answer
(1) In 2-chlorobutane, butane is parent alkane stands for 4 carbon atoms and number the carbon atoms in a chain as 1, 2, 3,….
$\stackrel{1}{\mathrm{C}}-\stackrel{2}{\mathrm{C}}-\stackrel{3}{\mathrm{C}}-\stackrel{4}{\mathrm{C}}-$
(2) Chloro (Halo) is the prefix and the number assigned for prefix (chloro) is 2 . Show the chloro atom at $\mathrm{C}_2$
(3) Now satisfy the valencies of each carbon atom
$\stackrel{1}{\mathrm{C}}-\stackrel{2}{\mathrm{C}}-\stackrel{3}{\mathrm{C}}-\stackrel{4}{\mathrm{C}}-$
(2) Chloro (Halo) is the prefix and the number assigned for prefix (chloro) is 2 . Show the chloro atom at $\mathrm{C}_2$
(3) Now satisfy the valencies of each carbon atom
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