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Write the reactions of Williamson synthe...

Write the reactions of Williamson synthesis of 2-ethoxy-3-methylpentane starting from ethanol and 3-methylpentan-2-ol.

Text Solution

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`CH_(3)-CH_(2)-underset(CH_(3))underset("| ")("C ")H-underset(OH)underset("| ")("C")H-CH_(3)overset(Na)rarrCH_(3)-CH_(2)-underset(CH_(3))underset("| ")("C ")H-underset(CH_(3))underset("| ")("C ")H-ONa`
`C_(2)H_(5)OH overset(HBr)rarr C_(2)H_(5)Br`
`CH_(3)-CH_(2)-underset(CH_(3))underset("| ")("C ")H-underset(CH_(3))underset("| ")("C ")H-ONa+C_(2)H_(5)Br rarr underset("2-Ethoxy-3-methylpentane")(CH_(3)-CH_(2)-underset(CH_(3))underset("| ")("C ")H-underset(CH_(3))underset("| ")("C ")H-OC_(2)H_(5))`
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Knowledge Check

  • 2-methylpentane is :

    A
    B
    C
    D

  • In Williamson's synthesis, ethoxy ethanol iws prepared by.

    A
    passing ethanol over heated alumina
    B
    heating sodium ethaoxide with ethyl bromide
    C
    treating ethyl alcohol with excess of `H_2SO_4` at `430-440K`.
    D
    heating ehtanol with dry oxygen.