Single Choice

Ethanoic propanoic anhydride on reaction with excess of MeMgBr gives the major product

A
Correct Answer
B
C
D

Solution

Nucleophile $$(Me^{\ddot{\circleddash}})$$ attacks the $$(C = O)$$ group attached to the less-substituted EDG (Me group) because nucleophilic addition (NA) is favoured by EWG or less-substituted EDG.

SIMILAR QUESTIONS

Alcohols, Phenols and Ethers

Primary alcohols are obtained by the reaction of Grignard reagent with :

Alcohols, Phenols and Ethers

The coupling between $${C}_{2}{H}_{5}MgBr$$ and $$MeBr$$ gives propane in the presence of:

Alcohols, Phenols and Ethers

Propane is not formed when $${C}_{3}{H}_{7}MgBr$$ is treated with _________ .

Alcohols, Phenols and Ethers

Propyl lithium reacts with ethene to give a compound $$(A)$$ which on reaction with methanal followed by acidic hydrolysis gives compound $$(B)$$ is:

Alcohols, Phenols and Ethers

$$(CH_3)_2CHCHO+CH_3MgBr \xrightarrow {ether} A \xrightarrow {H_3O^+} B$$ The IUPAC name of '$$B$$' is :

Alcohols, Phenols and Ethers

Alcohol is not formed when $$RMgX$$ is treated with:

Alcohols, Phenols and Ethers

The reaction of methyl magnesium iodide with acetone followed by hydrolysis gives secondary butanol.

Alcohols, Phenols and Ethers

How are the following conversions carried out? Methyl magnesium bromide $$\rightarrow$$ 2-Methylpropan-2-ol.

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