Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 56, Issue 19, Pages 5267-5271Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201700317
Keywords
carbonylation; ferrocenyl ligands; ligand design; olefins; palladium
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Funding
- Evonik Performance Materials GmbH
- State of Mecklenburg-Vorpommern
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The development of ligands plays a key role and provides important innovations in homogeneous catalysis. In this context, we report a novel class of ferrocenyl phosphines for the alkoxycarbonylation of industrially important alkenes. A basic feature of our ligands is the combination of sterically hindered and amphoteric moieties on the Patoms, which leads to improved activity and productivity for alkoxycarbonylation reactions compared to the current industrial state-of-the-art ligand 1,2-bis((di-tert-butylphosphino)methyl)benzene). Advantageously, palladium catalysts with these novel ligands also enable such transformations without additional acid under milder reaction conditions. The practicability of the optimized ligand was demonstrated by preparation on >10g scale and its use in palladium-catalyzed carbonylations on kilogram scale.
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