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Destroyer Ochem 193

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saDDS

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in the second step, how are they adding Cl2 to the benzene ring without the FeCl3 catalyst?
 

sixkiller

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Certain activated benzene rings like phenol, aniline, anisole can be chlorinated/brominated without the use of a lewis acid catalyst...
 

BiomajorPreDent

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Does this go for any activated benzene ring or just the ones mentioned?

Destroyer seems to test the exceptions to every rule
 

BiomajorPreDent

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ok..also on that problem, two equivalents of Cl were added whereas with the lewis acid catalyst only one is added. Any reason?
 

miedvied

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Does this go for any activated benzene ring or just the ones mentioned?

Destroyer seems to test the exceptions to every rule

Just very strongly activated rings. Outside of an amine substituent, or something of comparable activation, it shouldn't come up.
 
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