Name the following reaction.
`C_(6)H_(5)-C-=N overset(SnCl_(2)+HCl)rarr C_(6)H_(5)-CH=N^(o+)H_(2)]Cl^(Θ) overset(H_(2)O)rarr C_(6)H_(5)CHO+NH_(3)`

Options

A. Stephen reduction
B. Sandmeyer reaction
C. Mendius reduction
D. None of these

Answer

To name the reaction given in the question, we can follow these steps:

### Step 1: Identify the Reactants
The reactants in the reaction are:
- A nitrile compound: C₆H₅-C≡N (benzonitrile)
- Tin(II) chloride (SnCl₂)
- Hydrochloric acid (HCl)

### Step 2: Understand the Reaction Mechanism
The reaction proceeds in two main steps:
1. **Formation of an Imine Salt**: The nitrile reacts with SnCl₂ and HCl to form an iminium salt. This step involves the reduction of the nitrile to an imine.
2. **Hydrolysis of the Imine Salt**: The iminium salt is then hydrolyzed in water to yield an aldehyde and ammonia. In this case, the aldehyde formed is benzaldehyde (C₆H₅CHO).

### Step 3: Name the Reaction
The overall reaction can be named as **Stephen Aldehyde Synthesis**. This name reflects the process of synthesizing aldehydes from nitriles using tin(II) chloride and hydrochloric acid, followed by hydrolysis.

### Final Answer:
The reaction is named **Stephen Aldehyde Synthesis**.

---