Ortho-Para Director

Ortho-Para Director Definition:

A group that directs the regiochemistry of an electrophilic aromatic substitution reaction such that the incoming electrophile is installed at the ortho or para positions.

Ortho-Para Director Explained:

In electrophilic substitution the substituents that allow electrophilic attack of ortho and pera to a substituent. Ortho/pera directors are activators except for halogens which the opposite.

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