Which of the following does not form grignard reagent

Asked by admin @ in Chemistry viewed by 278 People

Which of the following does not form Grignard reagent on reaction with Mg in the presence of ether?

(1)Chloroethane (2) 1-chloropropane (3)Bromobenzene (4) Vinyl chloride.
The answer is 4 but how because vinyl halides also form grignard reagent?

Answered by admin @


The Grignard reaction (pronounced /ɡriɲar/) is an organometallicchemical reaction in which alkyl, vinyl, or aryl-magnesium halides(Grignard reagents) add to a carbonyl group in an aldehyde or ketone. This reaction is an important tool for the formation of carbon–carbon bonds. The reaction of an organic halide with magnesium is not a Grignard reaction, but provides a Grignard reagent.

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