dehydration of alkene
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Answer:
The dehydration reaction of alcohols to generate alkene proceeds by heating the alcohols in the presence of a strong acid, such as sulfuric or phosphoric acid, at high temperatures. The required range of reaction temperature decreases with increasing substitution of the hydroxy-containing carbon: ... 3° alcohols: 25°– 80°C.
Answer: The dehydration reaction of alcohols to generate alkene proceeds by heating the alcohols in the presence of a strong acid, such as sulfuric or phosphoric acid, at high temperatures. The required range of reaction temperature decreases with increasing substitution of the hydroxy-containing carbon. Dehydration of alcohols follows a three-step mechanism.
Formation of protonated alcohol
Formation of carbocation
Formation of alkenes
General dehydration reaction of alcohols can be seen as,
