In which fo the following reactions is the correct major product formed?

Options

A.
B.
C.
D.

Explanation

To determine which of the given reactions forms the correct major product, we will analyze each option step by step.

### Step 1: Analyze Option A
- **Reaction**: Paramethoxy phenol reacts with an alkyl halide in the presence of AlCl3 (Lewis acid).
- **Mechanism**: This is a Friedel-Crafts alkylation. The hydroxyl (OH) group is an activating group and directs substitution to the ortho and para positions. However, the para position is blocked by the methyl group (from paramethoxy), so the isopropyl group will be added to the ortho position of the OH group.
- **Major Product**: The major product will be ortho-isopropyl paramethoxy phenol.
- **Conclusion**: Option A gives the correct major product.

### Step 2: Analyze Option B
- **Reaction**: A methyl-substituted benzene reacts with an acid chloride (MeCOCl) in the presence of AlCl3.
- **Mechanism**: This is a Friedel-Crafts acylation. The methyl group is an ortho/para director, but due to steric hindrance, the acetyl group will preferentially attack the ortho position.
- **Major Product**: The major product will be ortho-acetyl methylbenzene.
- **Conclusion**: Option B gives the correct major product.

### Step 3: Analyze Option C
- **Reaction**: Meta amino benzoic acid reacts with bromine water.
- **Mechanism**: The amino group is a meta director, but since bromine is a strong electrophile, it will substitute at the ortho and para positions. However, due to steric hindrance and the presence of the amino group, the major product will be at the para position.
- **Major Product**: The major product will be para-bromo meta amino benzoic acid.
- **Conclusion**: Option C gives the correct major product.

### Step 4: Analyze Option D
- **Reaction**: A phenol reacts with bromine in a non-polar solvent.
- **Mechanism**: In this case, bromine will add to the ortho and para positions of phenol. The major product is para-bromophenol due to steric hindrance.
- **Major Product**: The major product will be para-bromophenol, but the option provided does not match this.
- **Conclusion**: Option D does not give the correct major product.

### Final Conclusion
The correct options that give the major products are A, B, and C. Option D does not yield the expected product.