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प्रश्न
What are the limitations to prepare ether by this method?
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उत्तर
Limitations:
- When alcohol is heated with dehydrating agents like concentrated H2SO4 or H3PO4 two products, either ether or an alkene can form depending upon the temperature.
- Use of higher temperature or 2°/3° alcohols gives alkene as the major product.
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संबंधित प्रश्न
Anisole on heating with concentrated HI gives ______.
Choose the correct option.
Ethers react with cold and concentrated H2SO4 to form ________.
What is the action of atmospheric oxygen on ethers?
Write chemical equation of acetyl chloride with ethanol
Write the preparation of ethanol from methyl magnesium iodide.
Explain the fact that in alkyl aryl ethers, the alkoxy group is ring activating and ortho/para directing towards electrophilic aromatic substitution.
How will you prepare diethyl ether by dehydration of alcohol?
What is the action of following on diethyl ether?
dil. H2SO4
In the following reaction:
\[\ce{Ether ->[Hot HI] A + B + H2O}\],
If A and B are identical, the ether is ____________.
Which of the following compounds does not contain \[\begin{array}{cc}\backslash\phantom{......}\\\ce{C = O}\\
/\phantom{......}\\\end{array}\] group?
For the preparation of mixed ethers by Williamson synthesis, which of the following combination will give the best yield?
A mixed ether on hydrolysis gives ____________.
\[\ce{(CH3)2CH - O - CH3 ->[Cold HI] X + Y}\]
\[\ce{X ->[K2Cr2O7][dil. H2SO4] Z}\]
\[\ce{Y ->[NaOH(aq)][\Delta] CH3OH}\]
Identify X, Y and Z.
To prepare ethanol from methyl magnesium bromide, the other reagent required is ____________.
When methoxy benzene reacts with HI at room temperature the products formed are ______.
What are the products of the following reaction?
\[\ce{(CH3)3C - O - CH3 + HI ->[cold] ?}\]
Which of the following compounds does NOT contain \[\begin{array}{cc}\backslash\phantom{.......}\\\ce{C = O}\\
/\phantom{.......}\\\end{array}\] group?
The major product of the reaction between tert-butyl chloride and sodium ethoxide is ______.
The compound which is not formed when a mixture of n-butyl bromide and ethyl bromide treated with sodium metal in the presence of dry ether is ______.
Tert-butyl methyl ether on treatment with hydrogen iodide in cold gives ______.
Formation of diethyl ether from ethanol is based oh a ______.
Explain Williamson's synthesis.
