# 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:           (iii)     2,2,3-Trimethyl-3-bromopentane

D Devendra Khairwa

(iii)

In this compound we have two type of $\beta$ - hydrogen thus dehalogenation we get two types of products namely 3, 4, 4-Trimethylpent-2-ene and 2-Ethyl-3,3-dimethylbut-2-ene.

and

Here 3, 4, 4-Trimethylpent-2-ene will be major product, since the $\alpha$ - hydrogen attached to the double bond are greater.

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