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Dehydrohalogenation for Alkenes

Write the che...

Question

Write the chemical equation for the preparation of ethene from below,
a) alkyl halides
b) vicinal dihalide

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Solution

(A) It can be prepared by WURTZ Reaction

$C H_{3} C l + C H_{3} C l s o d i u m i n d r y e t h e r - ---------- \to C_{2} H_{6}$

(B) Alkynes are obtained from vicinal dihalides by dehydrohalogenation which is carried out in two steps:

The first step is to prepare unsaturated halides. The halides formed have a halogen attached to a double bonded carbon. These halides are called vinylic halides which are not reactive in nature.

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Dehydrohalogenation for Alkenes

Standard XII Chemistry

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