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Which one of the following is used to ob...

Which one of the following is used to obtain the maximum percentage of terminal alkene by dehydrohalogenation of
`CH_3CH_2C(CH_3)_2 Br` ?

A

Sodium ethoxide in ethanol

B

Potassium ethoxide in ethanol

C

Potassium tert -butoxide in tert -butyl alcohol

D

potassium alkoxide derived from 3-ethyl -3- pentanol in `HO -C (C_2H_5)_3`

Text Solution

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The correct Answer is:
C

So, in this reaction potassium tert-butoxide in tert-butyl alcohol `[(CH_3)_3CO^-K^+"in"(CH_3)_3COH]` is used to obtain tha maximum percentage of terminal alkene by dehydrohalogenation of `CH_3CH_2C(CH_3)_2`Br.
Note-When a more hindered is used, more of the thermodynamically less terminal alkene is generated,.
If we will use other base then the reaction takes place as follows :
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