Examlex
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O,p-director
Substituents in aromatic substitution reactions that direct incoming substituents to the ortho and para positions relative to themselves.
Hydroxyl Group
A functional group consisting of an oxygen atom covalently bonded to a hydrogen atom (-OH), found in alcohols and phenols.
Rate Determining
Describes the slowest step in a chemical reaction that determines the overall rate at which the reaction proceeds.
Sigma Complex
An intermediate structure in a chemical reaction where a sigma bond is formed between the electrophile and the nucleophile.
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