PROCESS FOR PREPARING CARBAZOLES

PROCESS FOR PREPARING CARBAZOLES

A process for preparing one or more carbazoles comprising (a) contacting one or more compounds represented by formula (1) below with diboron reagents in the presence of PdCl2(dppf) to form one or more 2,2'-dichlorobiaryl represented by formula (2) below; and (b) contacting the one or more 2,2&#...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KLOSIN, Jerzy, JAGANATHAN, Arvind, FONTAINE, Philip, PAN, Heqi, ZHANG, Chunming
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:A process for preparing one or more carbazoles comprising (a) contacting one or more compounds represented by formula (1) below with diboron reagents in the presence of PdCl2(dppf) to form one or more 2,2'-dichlorobiaryl represented by formula (2) below; and (b) contacting the one or more 2,2'-dichlorobiaryls with one or more H2N-Y compounds, in the presence of one or more palladium containing catalytic components; thereby forming one or more carbazoles represented by formula (3) below is provided.