Question

ethylamine reacts with Grignard reagent?

Answer 1

Answer:

Grignard reagent (RMgX where R= alkyl group and X = CL, Br, I) readily react with compounds having acidic hydrogen such as water, alcohol, amines (primary and secondary) to give corresponding alkane. However, it failed to react with ether and tertiary amine due to lack of accidic hydrogen. That's why all the reactions are carried out in ether medium.

Answer 2

Answer:

The reaction of ethylamine with Grignard reagent such as CH₃MgBr gives methane.

Explanation:

• Grignard reagent is represented as RMgX where R is a alkyl group, X is a halogen. The polarity of Grignard reagent as $R^{\delta -}-Mg^{\delta+}X$, the carbon of alkyl group is negatively polarized and acts as nucleophilic center. It will attack on the sites of other molecule with low electron density and will give nucleophilic substitution and addition reactions.
• When ethylamine (CH₃CH₂NH₂) reacts with Grignard reagent (methyl magnesium bromide). It give methane as product. The reaction will be as:

        CH₃CH₂NH₂    +    CH₃MgBr   $\longrightarrow$    CH₄   +   C₂H₅NHMgBr

• Methane gas is formed from the reaction of ethylamine and CH₃MgBr.

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