Branch-Selective Intermolecular Hydroacylation: Hydrogen-Mediated Coupling of Anhydrides to Styrenes and Activated Olefins

Branch-Selective Intermolecular Hydroacylation: Hydrogen-Mediated Coupling of Anhydrides to Styrenes and Activated Olefins

Branching out with hydrogen: Hydrogenation of symmetric or mixed carboxylic anhydrides in the presence of styrenes or activated olefins generates intermolecular hydroacylation products. The use of cationic rhodium catalysts ligated by triphenylarsine (Ph3As) results in the formation of branched coup...

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Veröffentlicht in:Angewandte Chemie International Edition 2006-10, Vol.45 (41), p.6885-6888
Hauptverfasser: Hong, Young-Taek, Barchuk, Andriy, Krische, Michael J.
Format: Artikel
Sprache:eng
Schlagworte:
alkenes
Alkenes - chemistry
Anhydrides - chemistry
Catalysis
homogeneous catalysis
hydroacylation
hydrogenation
Molecular Structure
rhodium
Styrenes - chemistry
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Beschreibung
Zusammenfassung:Branching out with hydrogen: Hydrogenation of symmetric or mixed carboxylic anhydrides in the presence of styrenes or activated olefins generates intermolecular hydroacylation products. The use of cationic rhodium catalysts ligated by triphenylarsine (Ph3As) results in the formation of branched coupling products as single regioisomers in high yields (see scheme; cod=cycloocta‐1,5‐diene, ArF=3,5‐(CF3)2C6H3).
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200602377