For the synthesis of but-1-ene,CH_3MgI should | vedclass

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Question

(C) The synthesis of $but-1-ene$ $(CH_2=CH-CH_2-CH_3)$ from $CH_3MgI$ (a Grignard reagent) involves a nucleophilic substitution reaction with an alkyl

Vedclass · Accepted Answer

allyl chloride

Vedclass · Answer

(C) The synthesis of $but-1-ene$ $(CH_2=CH-CH_2-CH_3)$ from $CH_3MgI$ (a Grignard reagent) involves a nucleophilic substitution reaction with an alkyl halide containing a terminal double bond.Specifically,$CH_3MgI$ reacts with allyl chloride $(CH_2=CH-CH_2Cl)$ to form $but-1-ene$ and magnesium salts $(Mg(Cl)I)$:$CH_2=CH-CH_2Cl + CH_3MgI \rightarrow CH_2=CH-CH_2-CH_3 + Mg(Cl)I$Thus,the correct reagent is allyl chloride.

For the synthesis of $but-1-ene$,$CH_3MgI$ should be treated with:

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