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Grignerd Reagent

Updated on September 8, 2014

Preparation of Grignerd reagent

At first Victor Grignard from University of Lyons discovered Grignard Reagent. For the owner of this great discovery he awarded as a Novel prize in 1912.

The solution of alkyl halide in dry ethyl ether react with magnesium metal. Magnesium starts to disappears. The resulting solution is called Grignard Reagent. Grignard Reagents are symbolises as RMgX. Here, R denoted for Alkyl group, Mg for magnesium and X for hallide group. In generally it called Alkylmagnesium halide.

The chemical reaction of forming Grignard Reagent is given bellow,

Rx+Mg=RMgX

Methyl chloride in ether solution react with magnesium and form a vigourous solution of Methylmagnesium Chloride. This is a Grignard Reagent.

The structure of Grignard Reagent

The structure of Grignard Reagent is complicated. Here a bond is forms between Carbon and Magnesium. Magnesium make a bond with this Carbon that was previously bonded with halide ion. The potion of Grignard Reagent with Magnesium and Alkyl group is positive charges in nature. This positive charged ion attract the negatively charged hallide ion. Hence, form an Ionic bond.

Importance of Grignard Reagent in Chemical reaction

Grignard Reagent is highly reactive compound. Due to its high reactivity it can take a reaction with inorganic compound, just like watwr, carbin dioxide, and Oxygen, etc. The nature of the reaction of Grignard Reagent with warer is just like the nature of the reaction of Grignard Reagent with acid.

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