Nucleophilic substitution in the l-nitro-4-chloroanthraquinone by phenolates and thiophenolates
In reactions of l-nitro-4-chloroanthraquinone with phenolate anions first is chiefly substituted the chlorine atom, whereas by the thiophenolate anion predominantly is replaced the nitro group. The difference in behavior with this substrate of the O- and S-nucleophiles is attributed to the change in the proportion of electrostatic and orbital interaction.
Tabatskaya,Beregovaya,Vlasov
p. 861 - 866
(2007/10/03)
Process for the production of nitro derivatives of aromatic compounds
Nitroderivates of aromatic compounds which are difficult to nitrate, can readily be obtained by nitration providing that the aromatic compound is treated with nitric acid or another nitrating agent in the presence of aliphatic or cycloaliphatic hydrocarbons monosubstituted or polysubstituted by halogen, the nitro group or an alkyl sulphonyl group, and the nitro derivative formed subsequently isolated.
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(2008/06/13)
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