Among N N dimethyl aniline and N, N, 2, 6 - tetramethyl aniline which one is a stronger base and why

Explanation

To determine which compound is a stronger base between N,N-dimethylaniline and N,N,2,6-tetramethylaniline, we need to analyze their structures and how the presence of methyl groups affects the availability of the lone pair on the nitrogen atom.

### Step-by-Step Solution:

1. **Identify the Structures**:
- **N,N-Dimethylaniline**: This compound has a nitrogen atom bonded to two methyl groups and one aniline group (which is a benzene ring with an amino group).
- **N,N,2,6-Tetramethylaniline**: This compound has a nitrogen atom bonded to two methyl groups and an aniline group, but it also has two additional methyl groups at the 2 and 6 positions on the benzene ring.

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