Nitração aromática: substituição eletrofílica ou reação com transferência de elétrons?

Aromatic nitration is one of the most relevant class of reactions in organic chemistry. It has been intensively studied by both experimental, including works in the condensed as well as in the gas phase, and theoretical procedures. However, the published results do not seem to converge to an unique mechanism. Electrophilic substitution and electron transfer, in an exclusive way, are both proposed as the main mechanism for the reaction. We review these proposals and discuss the most recent findings.

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Bibliographic Details
Main Authors: Cardoso,Sheila Pressentin, Carneiro,José Walkimar de Mesquita
Format: Digital revista
Language:Portuguese
Published: Sociedade Brasileira de Química 2001
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422001000300015
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Summary:Aromatic nitration is one of the most relevant class of reactions in organic chemistry. It has been intensively studied by both experimental, including works in the condensed as well as in the gas phase, and theoretical procedures. However, the published results do not seem to converge to an unique mechanism. Electrophilic substitution and electron transfer, in an exclusive way, are both proposed as the main mechanism for the reaction. We review these proposals and discuss the most recent findings.