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Phase-Transfer Catalysis in the Ullmann Synthesis of Substituted Triphenylamines
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1987
Year
Asymmetric CatalysisChemical EngineeringCross-coupling ReactionUllmann Reaction ConditionsEngineeringNovel OrganocatalystsPhase-transfer CatalysisOrganic ChemistryOrganometallic CatalysisCatalysisChemistrySubstituted Triphenylamine DerivativesSynthetic ChemistryQuantitative Yields
A variety of substituted triphenylamine derivatives were prepared in nearly quantitative yields by the use of 18-crown-6 as a phase transfer catalyst under the Ullmann reaction conditions.