Supported/Encapsulated Palladium Catalysts

By: William Sommer, Aldrich ChemFiles 2007, 7.10, 23.

Aldrich ChemFiles 2007, 7.10, 23.

Palladium has become one of the most commonly used metal for cross-coupling transformations. However, the use of homogeneous palladium presents several drawbacks that can be overcome by attaching the desired palladium complex to a functionalized polystyrene resin. Aldrich offers a portfolio of polystyrene supported palladium complexes that showed good results for Heck, Suzuki, and Sonogashira transformations.

In partnership with Reaxa, Sigma-Aldrich offers a variety of supported catalysts, Pd(II) EnCat™ and LaPCat™. Pd(II) EnCat™ covers a wide range of immobilized palladium acetate catalysts with or without activating ligands contained in a robust, porous polyurea matrix which allows easier, faster, and cleaner reaction processes to be developed. The recyclable catalysts have demonstrated superb activity in cross-couplings, Heck couplings, and carbonylations.1–3

The LaPCat™ kit is an exclusive collection of six palladium and/or copper containing perovskite heterogeneous catalysts for use in a wide range of organic reactions. LaPCat™ catalysts demonstrate superb catalytic activity in many coupling reactions with a wide variety of substrates.

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  1. Ladlow, M. et al. Org. Biomol. Chem. 2003, 1, 2419.
  2. Ley, S. V. et al. Org. Biomol. Chem. 2004, 2, 611.
  3. Ley, S. V. et al. Chem. Commun. 2005, 2175.

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