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You did not prepare your own benzyltriphenylphosphonim chloride (PhCH2PPh3Cl, Wittig salt). Write a reaction showing how the Wittig salt is prepared from benzyl chloride (PhCH2Cl).

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Answer:

The formed wittig reagent is
ph-CH =PPh_(3)

Step-by-step explanation:

Wittig reagent are usually prepared from a phosphonium salt which is obtained by the reaction of triphenyl Phosphine with an alkyl halide via an Sn² reaction.

The alkyl phosphonium salt is deprotonated with a strong base (C₄H₉Li) or, Butyl lithium.

You did not prepare your own benzyltriphenylphosphonim chloride (PhCH2PPh3Cl, Wittig-example-1
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