10.10     Predict all the alkenes that would be formed by dehydrohalogenation of the following halides with sodium ethoxide in ethanol and identify the major alkene: 

          (ii)     2-Chloro-2-methylbutane

Answers (1)

(ii)   

                                   

In this compound we have two kind of \beta hydrogen. So dehalogenation will give two kind of alkenes, namely 2-Methylbut-2-ene and 2-Methylbut-1-ene.

                    

The major product of this reaction will be 2-Methylbut-2-ene as the number of \alpha - hydrogens attached to double bonded carbon are more in case of this compound.

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