Thu March 27, 2014 By: Sanskrati Gawande

what is grinards reaction how can propane be prepared from grinards reagent?

Expert Reply
Thu March 27, 2014

The Grignard reaction is an organometallic chemical 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.

A Grignard reagent has a formula RMgX where X is a halogen, and R is an alkyl or aryl (based on a benzene ring) group. For the purposes of this page, we shall take R to be an alkyl group.

A typical Grignard reagent might be CH3CH2MgBr.

Preparation of Alkane From Grignard reagent:

(a) By action of acidic ‘H’ :


(b) By reaction with alkyl halide:


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