(A) The given reaction is the $Stephen$ reaction. In this reaction,nitriles $(R-CN)$ are reduced to imines using stannous chloride $(SnCl_2)$ in the p

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(A) The given reaction is the $Stephen$ reaction. In this reaction,nitriles $(R-CN)$ are reduced to imines using stannous chloride $(SnCl_2)$ in the presence of hydrochloric acid $(HCl)$. The intermediate imine ($A$,which is $R-CH=NH \cdot HCl$) is then hydrolyzed with water $(H_3O^+)$ to yield the corresponding aldehyde $(RCHO)$.

Class 12 Chemistry 8-1.Aldehydes and Ketones Preparation

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$R-C \equiv N + SnCl_2 + HCl$ $\longrightarrow A$ $\xrightarrow{H_3O^+} RCHO$. The above reaction is known as:

A
Stephen reaction
B
Rosenmund reduction
C
Etard reaction
D
Mendius reaction

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Class 12

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8-1.Aldehydes and Ketones

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Preparation

In the reaction $CH_3CN + 2H$ $\xrightarrow[Ether]{HCl} X$ $\xrightarrow[Boiling]{H_2O} Y$; the term $Y$ is:

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$X$ & $Y$ respectively are $-$

Medium

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Conversion of esters to aldehydes can be accomplished by

MediumTS EAMCET 2017

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The chemicals used for preparing acetophenone are:
$(A)$ $C_6H_6$
$(B)$ $CH_3COCH_3$
$(C)$ $CH_3COCl$
$(D)$ Anhydrous $AlCl_3$

MediumTS EAMCET 2002

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The reagents used in the Etard reaction $(I)$ and the Stephen reaction $(II)$ are:

EasyAP EAMCET 2014

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$R-C \equiv N + SnCl_2 + HCl$ $\longrightarrow A$ $\xrightarrow{H_3O^+} RCHO$. The above reaction is known as:

Similar Questions

In the reaction $CH_3CN + 2H$ $\xrightarrow[Ether]{HCl} X$ $\xrightarrow[Boiling]{H_2O} Y$; the term $Y$ is:

$X$ & $Y$ respectively are $-$

Conversion of esters to aldehydes can be accomplished by

The chemicals used for preparing acetophenone are:$(A)$ $C_6H_6$$(B)$ $CH_3COCH_3$$(C)$ $CH_3COCl$$(D)$ Anhydrous $AlCl_3$

The reagents used in the Etard reaction $(I)$ and the Stephen reaction $(II)$ are:

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The chemicals used for preparing acetophenone are:
$(A)$ $C_6H_6$
$(B)$ $CH_3COCH_3$
$(C)$ $CH_3COCl$
$(D)$ Anhydrous $AlCl_3$