Aromatic coupling process
AssigneeEthyl Corporation
InventorG. Patrick Stahly
Life of this patent
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Abstract
4-(2,4-Dinitrophenyl)phenols are prepared by reacting a 1,3-dinitrobenzene having a replaceable hydrogen in the 4-position with a phenol having a replaceable hydrogen in the 4-position in an inert solvent and in the presence of a strong base. The 1,3-dinitrobenzene and phenol may be substituted or unsubstituted, and preferred phenols include phenol and 2,6-dialkylphenols.
Claims9
A process which comprises reacting (a) a 1,3-dinitrobenzene having a replaceable hydrogen in the 4-position with (b) a phenol having a replaceable hydrogen in the 4-position and selected from the group consisting of phenol and substituted phenols bearing at least one inert ring substituent selected from alkyl, alkoxy, alkenyl, alkynyl, cycloalkyl, aryl, aralkyl, and alkaryl groups in an inert solvent and in the presence of an alkali metal hydride, hydroxide, or alkoxide to form a 4-(2,4-dinitrophenyl)phenol.
Dependencies are inferred from the claim text.