Which of the following reactions is an example of Rosenmund reduction?
- A$R-CO-R \xrightarrow[\text{ethylene glycol}]{\text{NH}_2-\text{NH}_2, \Delta, \text{KOH}} R-CH_2-R$
- B$R-CHO \xrightarrow[\Delta]{\text{Zn-Hg} / \text{conc. HCl}} R-CH_3$
- C$R-CO-Cl \xrightarrow[\text{Pd/BaSO}_4]{\text{H}_2} R-CHO + \text{HCl}$
- D$R-CN \xrightarrow[\text{H}_3\text{O}^+]{\text{SnCl}_2 / \text{HCl}} R-CHO + \text{NH}_4\text{Cl}$
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Similar Questions
Which of the following gives an aldehyde on dry distillation?
Identify product $Z$ in the following reaction sequence:
$CH_2=CH-CH_2Br$ $\xrightarrow{NaCN} Y$ $\xrightarrow[1. C_6H_5MgBr, \text{diethylether}]{2. H_3O^{+}} Z$
$CH_2=CH-CH_2Br$ $\xrightarrow{NaCN} Y$ $\xrightarrow[1. C_6H_5MgBr, \text{diethylether}]{2. H_3O^{+}} Z$
Difficult
View SolutionIdentify the product '$Y$' in the following reaction: $\text{Benzonitrile} \xrightarrow{C_6H_5MgBr/\text{dry ether}} X \xrightarrow{H_3O^+} Y + MgBr(OH) + NH_3$
DifficultMHT CET 2026
View SolutionWhat is $X$ in the following reaction sequence?
$Toluene \xrightarrow[ii. HNO_3/H_2SO_4]{i. CrO_2Cl_2/CS_2, H_3O^+} X$
$Toluene \xrightarrow[ii. HNO_3/H_2SO_4]{i. CrO_2Cl_2/CS_2, H_3O^+} X$
The major product of the following chemical reaction is
$CH_{3}CH_{2}CN \xrightarrow[(3) Pd/BaSO_{4}, H_{2}]{(1) H_{3}O^{+}, \Delta \quad (2) SOCl_{2}} ?$
$CH_{3}CH_{2}CN \xrightarrow[(3) Pd/BaSO_{4}, H_{2}]{(1) H_{3}O^{+}, \Delta \quad (2) SOCl_{2}} ?$
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