Advertisements
Advertisements
प्रश्न
Write the mechanism of acid catalysed dehydration of ethanol to give ethene.
उत्तर
Mechanism of acid catlaysed dehydration of ethanol:
Step 1: Protonation of ethanol
\[\begin{array}{cc}
\phantom{...............................}\ce{H}\\
\phantom{...............................}|\\
\ce{\underset{(Ethanol)}{CH3 - CH2 - \underset{\bullet\bullet}{\overset{\bullet\bullet}{O}}} - H ->[H - OSO3H] CH3 - CH2 - \underset{⊕}{O} - H + HS\overset{Θ}{O4}}
\end{array}\]
Step 2: Elimination of water molecule
\[\begin{array}{cc}
\ce{H}\phantom{....................}\\
|\phantom{....................}\\
\ce{CH2 - CH2 - O - H -> \underset{(Ethene)}{CH2 = CH2} + H2O + H^+}\\
|\phantom{................................................}\\
\ce{H}\phantom{................................................}
\end{array}\]
APPEARS IN
संबंधित प्रश्न
In the reaction \[\ce{Ethanol ->[PCl5] X ->[alc. KOH] Y ->[H2SO4/H2O][298 K] Z}\]. The ‘Z’ is
One mole of an organic compound (A) with the formula C3H8O reacts completely with two moles of HI to form X and Y. When Y is boiled with aqueous alkali it forms Z. Z answers the iodoform test. The compound (A) is ___________.
Identify the product(s) is/are formed when 1-methoxy propane is heated with excess HI. Name the mechanism involved in the reaction.
What is the major product obtained when two moles of ethyl magnesium bromide is treated with methyl benzoate followed by acid hydrolysis.
How is the conversion effected benzyl chloride to benzyl alcohol?
How will you convert acetylene into n-butyl alcohol?
\[\begin{array}{cc}\phantom{..........}\ce{CH3}\\\phantom{.......}/\\\ce{C6H4}\\
\phantom{.......}\backslash\\\phantom{.........}\ce{OH}\end{array}\] is a/an ______.
Draw the major product formed when 1-ethoxyprop-1-ene is heated with one equivalent of HI
Draw the major product formed when 1-ethoxyprop-1-ene is heated with one equivalent of HI
Draw the major product formed when 1-ethoxyprop-1-ene is heated with one equivalent of HI.
