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Question

The reaction RCNSnCl2/HCl−−−−−−−→(A)H2O−−→RCHO+NH4Cl is known as:

A
Reformatsky reaction
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B
Stephen's reaction
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C
Tishchenko reaction
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D
Cannizzaro reaction
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Solution

The correct option is C Stephen's reaction
The reaction RCNSnCl2/HCl−−−−−−[RCH=NH2]+ClH2ORCHO+NH4Cl is known as Stephen's reaction .
It involves the preparation of aldehydes (RCHO) from nitriles (RCN) using tin(II) chloride (SnCl2), hydrochloric acid (HCl) and quenching the resulting iminium salt ([RCH=NH2]+Cl) with water (H2O).

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