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why is biomolecular dehydration not appropriate for the preparation of ethyl methyl ether?

stuti sti , 7 Years ago
Grade 12th pass
anser 4 Answers
Arun
Dear student
1- Bimolecularr dehydration is a way of preparing diethyl ether from the dehydrating action of concentrated sulfuric acid on ethanol. The dehydrating agent, conc. H2SO4 abstracts a hydrogen from one ethanol and a hydroxyl (the -OH group) of the neighbour.By this Sulfuric acid grabs a mole of water.
Regards
Arun (askIITians forum expert)
So this method works only with symmetrical ethers: di[alkyl] ethers.
Methyl Ethyl ether is better prepared from Sodium ethoxide and methanol or Sodium methoxide and ethanol.
Moreover you will get three ethers if you try to react methanol + ethanol with sulfuric acid at high temp in a bimolecular dehydration reaction. So you will get all possible combinations including ethyl methyl ether, dimethyl ether and diethyl ether.
Last Activity: 7 Years ago
Dffhddggdsr
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Last Activity: 7 Years ago
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Intermolecular dehydration reaction takes place well and good in same kind of alcohols than a mixture as there are only one kind of ether possible from the former than the later...so ethanol alone gives diethylether...whereas ethanol and methanol both will produce mixture of ethers like diethylether,dimethylether and ethylmethylether...hope the answer is clear:-!😅😳
Last Activity: 6 Years ago
Rajaram
It is because that it cannot be made by this reaction that’s why it cannot be used for making ethyl methyl ether. Hope I answered the question 
Last Activity: 4 Years ago
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