Among the following,the number of reaction(s) | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Let us analyze each reaction:$I$. Gattermann-Koch reaction: Benzene reacts with $CO$ and $HCl$ in the presence of anhydrous $AlCl_3/CuCl$ to form

Vedclass · Accepted Answer

$4$

Vedclass · Answer

(D) Let us analyze each reaction:$I$. Gattermann-Koch reaction: Benzene reacts with $CO$ and $HCl$ in the presence of anhydrous $AlCl_3/CuCl$ to form benzaldehyde. This is a standard method for the preparation of benzaldehyde.$II$. Hydrolysis of benzal chloride: Benzal chloride $(C_6H_5CHCl_2)$ on hydrolysis with water at $100 \ ^\circ C$ yields benzaldehyde $(C_6H_5CHO)$.$III$. Rosenmund reduction: Benzoyl chloride $(C_6H_5COCl)$ is reduced to benzaldehyde using $H_2$ in the presence of $Pd-BaSO_4$ (Lindlar's catalyst).$IV$. Reduction of ester: Methyl benzoate $(C_6H_5CO_2Me)$ is reduced to benzaldehyde using $DIBAL-H$ at $-78 \ ^\circ C$ followed by hydrolysis.All four reactions produce benzaldehyde. Therefore,the total number of reactions is $4$.

Among the following,the number of reaction$(s)$ that produce$(s)$ benzaldehyde is

Similar Questions

Describe the method of preparation of aldehydes from nitrile and ester compounds by reaction with $DIBAL-H$.

In the Rosenmund's reduction,$BaSO_4$ taken with catalyst $Pd$ acts as

The most suitable reagent for the conversion of $RCH_2OH \to RCHO$ is

In the following reaction,product $P$ is: $RCOCl \xrightarrow{H_2, Pd-BaSO_4} P$

What is $Z$ in the following reaction sequence?
$C_6H_5NH_2$ $\xrightarrow[(i) NaNO_2 + HCl / 273 \ K]{(ii) H_3PO_2 + H_2O}$ $\xrightarrow[(iii) CO, HCl, \text{anhydrous } AlCl_3/CuCl]{} Z$

Vedclass Test Series

Exam Paper Generator

Online Exam Module