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Chemistry
What are the starting materials to get 2-methylpropene as the major product?
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Q. What are the starting materials to get $2$-methylpropene as the major product?
KEAM
KEAM 2012
Haloalkanes and Haloarenes
A
Sodium methoxide and sec-butyl bromide
0%
B
Sodium ethoxide and sec-butyl bromide
17%
C
Sodium tert-butoxide and ethyl bromide
17%
D
Sodium methoxide and tert-butyl bromide
50%
E
Sodium tert-butoxide and methyl bromide
50%
Solution:
Alkoxide ions are both powerful nucleophiles and bases. Thus, when they are treated with a tert alkyl halide, they bring its dehydrohalogenation resulting in the formation of alkene. Hence, the alkyl halide taken must be tertiary.