Ketones and `1^(@)` amine react to form

Options

A. Amides
B. Oximes
C. Urea
D. Schiff's bases

Answer

To solve the question "Ketones and `1^(@)` amine react to form", we can follow these steps:

### Step 1: Identify the Reactants
We start with a ketone and a primary amine (1° amine). A ketone has the general structure R1C(=O)R2, where R1 and R2 are alkyl or aryl groups. A primary amine has the structure R3NH2, where R3 is an alkyl or aryl group.

### Step 2: Understand the Reaction Mechanism
When a ketone reacts with a primary amine, they undergo a condensation reaction. In this reaction, the amine attacks the carbonyl carbon of the ketone.

### Step 3: Formation of the Intermediate
The nucleophilic nitrogen from the primary amine attacks the electrophilic carbon of the carbonyl group (C=O) in the ketone. This leads to the formation of a tetrahedral intermediate.

### Step 4: Elimination of Water
The tetrahedral intermediate then undergoes dehydration (loss of water) to form an imine. The reaction can be summarized as follows:
- Ketone + Primary Amine → Tetrahedral Intermediate → Imine + Water

### Step 5: Identify the Product
The product formed is an imine, which has the general structure R1C=N-R3. This compound is also known as a Schiff base.

### Final Answer
The reaction of a ketone with a primary amine results in the formation of a Schiff base (an imine).