Chlorination

Common Conditions:

NCS

Sufficiently activated aromatic rings (ex. anilines and phenols) are readily chlorinated with N-chlorosuccinimide (NCS). Chlorination of a less reactive ring system may need to be catalyzed (ex. acid catalyzed chlorination).^[1][2]

Examples

References:

1) Carey, F. A.; Sundberg, R. J.; Advanced Organic Chemistry, Part B: Reactions and Synthesis, 5th Edition

2) Caron, S.; Practical Synthetic Organic Chemistry