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What is Temperature Effects on 4-Nitroanisole Photosubstitution about?
1) The article examines the temperature dependence of regioselectivity in the nucleophilic photosubstitution of 4-nitroanisole by hydroxide ion. 2) The ratio of product yields (4-methoxyphenol to 4-nitrophenol) depends slightly on temperature from 3 to 73°C, varying from about 80:20 to 75:25. 3) A simple Arrhenius model using the relative activation energies of the competing transition states (2.2 and 2.6 kcal/mol) accurately predicts the observed temperature dependence of regioselectivity.
- Author
- Diogomussum
- Language
- EN