Destroyer Ochem #169

[dontwakeme]

I understand the first part of this reaction, but I've never seen the second part, where you add Cl2 and H20. Does anyone know the mechanism for this reaction? I was thinking it was some kind of Electrophilic Aromatic Substitution but you usually see Cl2 with a lewis acid like AlCl3 and you only do the monochlorination, not the dichlorination as they do here.

Thanks.

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