Domino reactions of rhodium(II) carbenoids for alkaloid synthesis.

Chemical Society reviews (2009-10-23)
Albert Padwa
RESUMO

In this tutorial review, the rhodium(II)-catalyzed domino reactions of alpha-diazo carbonyl compounds are summarized. The article will emphasize some of the more recent synthetic applications of the rhodium carbenoid cyclization/cycloaddition domino cascade for alkaloid synthesis. The many structurally diverse and highly successful examples of both oxa and azapolycyclic ring formation cited in this tutorial review clearly demonstrate that the domino cyclization/cycloaddition cascade of metallo carbenoids has evolved as an important strategy for the synthesis of nitrogen containing natural products.

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