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Explain why thionyl chloride method is p...

Explain why thionyl chloride method is preferred for preparing alkyl chlorides from alcohols.

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To explain why the thionyl chloride method is preferred for preparing alkyl chlorides from alcohols, we can follow these steps: ### Step 1: Reaction Overview When an alcohol (R-OH) reacts with thionyl chloride (SOCl2), it forms an alkyl chloride (R-Cl) along with byproducts, which are sulfur dioxide (SO2) and hydrochloric acid (HCl). ### Step 2: Reaction Mechanism The reaction can be summarized as follows: \[ R-OH + SOCl2 \rightarrow R-Cl + SO2 + HCl \] ...
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Give reasons for the following (a) The presence of -NO_2 group at ortho or para position increases the reactivity of haloarenes towards nucleophilic substitution reactions . (b) p-dichlorobenzene has higher melting point than of ortho or meta isomer . ( c) Thionyl chloride method is preferred for preparing alkyl chloride from alcohols.

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Knowledge Check

  • Benzyl chloride can be prepared by reacting :

    A
    Toluene with `Cl_(2)` in the presence of `FeCl_(3)`
    B
    Benzene with `CH_(3)Cl` in the presence of `AlCl_(3)`
    C
    Toluene with `Cl_(2)` in the presence of sunlight
    D
    Benzene with `Cl_(2)` in the presence of `FeCl_(3)`

  • Which of the following reagents can be used to prepare an alkyl halide from an alcohol? Is

    A
    NaCl
    B
    `SOCl_(2)`
    C
    `PCl_(5)`
    D
    `HCl+ZnCl_(2)`

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