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  • Highly enantioselective synthesis of chiral cyclic allylic amines via Rh-catalyzed asymmetric hydrogenation.

Highly enantioselective synthesis of chiral cyclic allylic amines via Rh-catalyzed asymmetric hydrogenation.

Organic letters (2014-06-17)
Ming Zhou, Tang-Lin Liu, Min Cao, Zejian Xue, Hui Lv, Xumu Zhang
RESUMO

Highly regioselective and enantioselective asymmetric hydrogenation of cyclic dienamides catalyzed by an Rh-DuanPhos complex has been developed, which provides a readily accessible method for the synthesis of chiral cyclic allylic amines in excellent enantioselectivities (up to 99% ee). The products are valuable chiral building blocks and could be easily transformed to multisubstituted cyclohexane derivatives.

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Sigma-Aldrich
Rhodium, powder, 99.95% trace metals basis
Rhodium, foil, not light tested, 50x50mm, thickness 0.00025mm, permanent polyester support, 99.9%
Rhodium, microfoil, disks, 10mm, thinness 0.1μm, specific density 124μg/cm2, permanent mylar 3.5μm support, 99.9%
Rhodium, foil, 12mm disks, thickness 0.5mm, as rolled, 99.9%
Rhodium, foil, not light tested, 25x25mm, thickness 0.00075mm, permanent polyester support, 99.85%
Rhodium, foil, not light tested, 25x25mm, thickness 0.012mm, as rolled, 99.9%
Rhodium, microfoil, disks, 10mm, thinness 0.25μm, specific density 310μg/cm2, permanent mylar 3.5μm support, 99.99%
Rhodium, microfoil, disks, 25mm, thinness 0.25μm, specific density 310μg/cm2, permanent mylar 3.5μm support, 99.99%
Rhodium, foil, not light tested, 25x25mm, thickness 0.0005mm, permanent polyester support, 99.85%
Rhodium, microfoil, disks, 10mm, thinness 0.50μm, specific density 620μg/cm2, permanent mylar 3.5μm support, 99.99%
Rhodium, wire reel, 0.05m, diameter 0.5mm, as drawn, 99.9%
Rhodium, foil, not light tested, 25x25mm, thickness 0.006mm, as rolled, 99.9%
Rhodium, microfoil, disks, 25mm, thinness 0.1μm, specific density 124μg/cm2, permanent mylar 3.5μm support, 99.9%
Rhodium, foil, not light tested, 50x50mm, thickness 0.006mm, as rolled, 99.9%
Rhodium, wire reel, 0.2m, diameter 0.5mm, as drawn, 99.9%
Rhodium, foil, not light tested, 25x25mm, thickness 0.001mm, permanent polyester support, 99.85%
Rhodium, foil, light tested, 25x25mm, thickness 0.05mm, as rolled, 99.9%
Rhodium, foil, light tested, 15x15mm, thickness 0.05mm, as rolled, 99.9%
Rhodium, foil, light tested, 25x25mm, thickness 0.05mm, as rolled, x-ray quality, 99.9%
Rhodium, foil, light tested, 25x25mm, thickness 0.075mm, as rolled, 99.9%
Rhodium, wire reel, 0.05m, diameter 1.0mm, as drawn, 99.9%
Rhodium, foil, not light tested, 50x50mm, thickness 0.00075mm, permanent polyester support, 99.85%
Rhodium, wire reel, 0.2m, diameter 0.12mm, as drawn, 99.9%
Rhodium, wire reel, 0.05m, diameter 0.12mm, as drawn, 99.9%
Rhodium, foil, not light tested, 10x10mm, thickness 0.012mm, as rolled, 99.9%
Rhodium, foil, not light tested, 50x50mm, thickness 0.001mm, permanent polyester support, 99.85%
Rhodium, foil, 25x25mm, thickness 0.15mm, as rolled, 99.9%
Rhodium, wire reel, 0.05m, diameter 0.25mm, hard, 99.9%
Rhodium, foil, not light tested, 25x25mm, thickness 0.00025mm, permanent polyester support, 99.9%
Rhodium, foil, 25x25mm, thickness 0.125mm, as rolled, 99.9%