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VCL Alcohol Halogenation- 5-2-2 Comment on the success of the reactions of the alcohols with thionyl...

VCL Alcohol Halogenation- 5-2-2

Comment on the success of the reactions of the alcohols with thionyl chloride. Did they give the desired product? Was the alcohol completely consumed? Explain.

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Answer #1

Alcohols can also be converted to alkyl chlorides using thionyl chloride, SOCl2, or phosphorous trichloride, PCl3.Thionyl chloride is preferred for preparing alkyl chlorides from alcohol because the by-products formed in the reaction are SO2 and HCl which are in gaseous form and escape into the atmosphere leaving behind pure alkyl halide.

Yes, the desired product halogenated product is obtained with inversion of configuration.

The halogenation of alcohols takes place via SN2 reaction mechanism,Since the SN2 reaction is a kinetical controlled reaction therefore it may mot happen that the given alchoal amount actually gets consumed.

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