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  • Palladium and organocatalysis: an excellent recipe for asymmetric synthesis.

Palladium and organocatalysis: an excellent recipe for asymmetric synthesis.

Molecules (Basel, Switzerland) (2013-08-27)
M Angeles Fernández-Ibañez, Beatriz Maciá, Diego A Alonso, Isidro M Pastor
ABSTRACT

The dual activation of simple substrates by the combination of organocatalysis and palladium catalysis has been successfully applied in a variety of different asymmetric transformations. Thus, the asymmetric a-allylation of carbonyl compounds, a-fluorination of acyl derivatives, decarboxylative protonation of β-dicarbonyl compounds, cyclization reactions of alkynyl carbonyl compounds and β-functionalization of aldehydes have been efficiently achieved employing this double-catalytic methodology.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Palladium, nanopowder, <25 nm particle size (TEM), ≥99.5%
Sigma-Aldrich
Palladium, foil, thickness 1.0 mm, 99.9% trace metals basis
Sigma-Aldrich
Palladium, foil, thickness 0.25 mm, 99.98% trace metals basis
Sigma-Aldrich
Palladium, powder or granules, 99.99% trace metals basis
Sigma-Aldrich
Palladium, wire, diam. 0.5 mm, 99.9% trace metals basis
Sigma-Aldrich
Palladium, powder, 99.995% trace metals basis
Sigma-Aldrich
Palladium, wire, diam. 1.0 mm, 99.9% trace metals basis
Sigma-Aldrich
Palladium, foil, thickness 0.025 mm, 99.9% trace metals basis
Sigma-Aldrich
Palladium, sponge, 99.9% trace metals basis
Sigma-Aldrich
Palladium, powder, <1 μm, ≥99.9% trace metals basis
Sigma-Aldrich
Palladium, foil, thickness 0.5 mm, 99.9% trace metals basis
Sigma-Aldrich
Palladium, evaporation slug, diam. × L 0.6 cm × 0.6 cm, 99.95% trace metals basis
Sigma-Aldrich
Palladium, powder, <75 μm, 99.9% trace metals basis
Palladium, foil, not light tested, 25x25mm, thickness 0.006mm, 99.95%
Palladium, foil, not light tested, 25x25mm, thickness 0.025mm, as rolled, 99.99+%
Palladium, foil, light tested, 25x25mm, thickness 0.004mm, 99.95%
Palladium, foil, 8mm disks, thickness 0.50mm, as rolled, 99.95%
Palladium, wire reel, 1m, diameter 0.125mm, hard, 99.95%
Palladium, wire reel, 0.1m, diameter 0.25mm, hard, 99.95%
Palladium, wire reel, 1m, diameter 0.25mm, hard, 99.95%
Palladium, wire reel, 0.2m, diameter 0.5mm, as drawn, 99.95%
Palladium, tube, 120mm, outside diameter 6mm, inside diameter 5mm, wall thickness 0.5mm, as drawn, 99.95%
Palladium, wire reel, 10m, diameter 0.025mm, as drawn, 99.9%
Palladium, wire reel, 1m, diameter 0.25mm, as drawn, 99.99+%
Palladium, wire reel, 0.05m, diameter 1.0mm, hard, 99.95%
Palladium, wire reel, 0.2m, diameter 1.0mm, hard, 99.95%
Palladium, wire reel, 2m, diameter 0.025mm, as drawn, 99.9%
Palladium, wire reel, 5m, diameter 0.05mm, as drawn, 99.9%
Palladium, wire reel, 20m, diameter 0.025mm, as drawn, 99.9%
Palladium, wire reel, 0.5m, diameter 0.25mm, as drawn, 99.99+%