Which of the following reactions does not yield an amine?

Options

A. `R-X+NH_(3)to`
B. `R-CH=NOHoverset(Na//C_(2)H_(5)OH)to`
C. `R-Cnoverset(H_(2)O//H^(+))to`
D. `R-CONH_(2)overset(LiAlH_(4))to`

Answer

To determine which of the given reactions does not yield an amine, we will analyze each reaction step by step.

### Step 1: Analyze the First Reaction
**Reaction:** RX + NH3 → RNH2 + HX

In this reaction, an alkyl halide (RX) reacts with ammonia (NH3) to produce a primary amine (RNH2) and a hydrogen halide (HX).

**Conclusion:** This reaction yields an amine.

### Step 2: Analyze the Second Reaction
**Reaction:** RCH=NOH + C2H5OH + Na → RCH2CH2NH2 + H2O

In this reaction, an oxime (RCH=NOH) undergoes reduction in the presence of ethanol (C2H5OH) and sodium (Na). The product formed is a primary amine (RCH2CH2NH2) along with water.

**Conclusion:** This reaction also yields an amine.

### Step 3: Analyze the Third Reaction
**Reaction:** RCN + H2O + H+ → RCOOH + NH3

In this reaction, an alkyl cyanide (RCN) is hydrolyzed in the presence of water and an acid (H+). The hydrolysis of the cyanide leads to the formation of a carboxylic acid (RCOOH) and ammonia (NH3).

**Conclusion:** This reaction does not yield an amine; instead, it produces ammonia.

### Step 4: Analyze the Fourth Reaction
**Reaction:** RCO NH2 + LiAlH4 → RCH2NH2 + H2O

In this reaction, an amide (RCO NH2) is reduced by lithium aluminum hydride (LiAlH4) to form a primary amine (RCH2NH2) along with water.

**Conclusion:** This reaction yields an amine.

### Final Conclusion
After analyzing all four reactions, we find that the third reaction (RCN + H2O + H+) does not yield an amine. Instead, it produces ammonia.

### Answer: The reaction that does not yield an amine is the third option (RCN + H2O + H+).

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