Dehydration reaction

Encyclopedia : D : DE : DEH : Dehydration reaction

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In chemistry, a dehydration reaction is a chemical reaction that involves the loss of water from the reacting molecule. Dehydration reactions are a subset of elimination reactions.

In organic synthesis, there are many examples of dehydration reactions:

• Conversion of alcohols to ethers

:2 R-OH → R-O-R + H₂O

Conversion of alcohols to alkenes

:R-CH₂-CHOH-R → R-CH=CH-R + H₂O

Conversion of carboxylic acids to acid anhydrides

:2 RCO₂H → (RCO)₂O + H₂O

Conversion of amides to nitriles

:RCONH₂ → R-CN + H₂O

See also

• Hydration reaction

 

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