10.16     Arrange the compounds of each set in order of reactivity towards SN2 displacement:

        (iii)     1-Bromobutane, 1-Bromo-2,2-dimethylpropane, 1-Bromo-2-methylbutane, 1-Bromo-3-methylbutane.

Answers (1)
D Devendra Khairwa

(iii)  The steric hindrance is the deciding factor here.

The order of steric hindrance is :-     

1-Bromobutane < 1-Bromo-3-methylbutane < 1-Bromo-2-methylbutane< 1-Bromo-2, 2-dimethylpropane

Thus the order of the rate of reaction will be : - 

1-Bromo-2, 2-dimethylpropane < 1-Bromo-2-methylbutane < 1-Bromo-3- methylbutane < 1-Bromobutane

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