Which of the following is an incorrect method | vedclass

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(D) Let us analyze each reaction pathway for the synthesis of benzaldehyde:$A$. Etard reaction: Toluene is oxidized by $CrO_2Cl_2$ in $CS_2$ followed

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$D$. Reaction of benzonitrile with $CH_3MgBr$ followed by hydrolysis

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(D) Let us analyze each reaction pathway for the synthesis of benzaldehyde:$A$. Etard reaction: Toluene is oxidized by $CrO_2Cl_2$ in $CS_2$ followed by hydrolysis to give benzaldehyde. This is a correct method.$B$. Rosenmund reduction: Benzoyl chloride is reduced by $H_2$ in the presence of $Pd-BaSO_4$ (Lindlar catalyst) to give benzaldehyde. This is a correct method.$C$. Toluene is oxidized by $CrO_3$ in the presence of acetic anhydride to form a gem-diacetate intermediate,which upon hydrolysis yields benzaldehyde. This is a correct method.$D$. Reaction of benzonitrile $(C_6H_5CN)$ with $CH_3MgBr$ (a Grignard reagent) followed by hydrolysis yields acetophenone $(C_6H_5COCH_3)$,not benzaldehyde. Therefore,this is an incorrect method for the synthesis of benzaldehyde.

Which of the following is an incorrect method for the synthesis of benzaldehyde?

Similar Questions

What is the reaction called in which toluene is oxidized to benzaldehyde in the presence of chromyl chloride?

Identify the final product $A$ in the given reaction sequence.

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Which of the following reactions will produce $R-CO-Ar$?

Identify the reagent used for Rosenmund reduction.

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