Preparation of ethers
Chapter 7: Class 12 Chemistry English Volume 2 · CHEMISTRY-VOLUME 2 · EN medium
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. Inter molecular dehydration of alcohol. We have already learnt that when ethanol is treated with con.H SO at 443K, elimination takes place to form ethene. If the same reaction is carried out at 413K, substitution competes over elimination to form ethers. 2CH -CH -OH CH -CH -O-CH -CH ethanol H SO 413K diethylether Mechanism: This method is useful for the preparation of simple ethers and not suitable for preparing mixed ethers. If a mixture of two different alcohols is used, mixture of different ethers will be formed and they are difficult to separate.
📖 Class 12 Chemistry English Volume 2 2024 Edition www.tntextbooks.in · Page 138
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. Inter molecular dehydration of alcohol. We have already learnt that when ethanol is treated with con.H SO at 443K, elimination takes place to form ethene. If the same reaction is carried out at 413K, substitution competes over elimination to form ethers.
2CH -CH -OH CH -CH -O-CH -CH ethanol H SO 413K diethylether Mechanism: This method is useful for the preparation of simple ethers and not suitable for preparing mixed ethers. If a mixture of two different alcohols is used, mixture of different ethers will be formed and they are difficult to separate.
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