- Low-valent ruthenium and iridium hydride complexes as alternatives to Lewis acid and base catalysts.
Low-valent ruthenium and iridium hydride complexes as alternatives to Lewis acid and base catalysts.
Accounts of chemical research (2000-04-25)
S Murahashi, H Takaya
PMID10775315
要旨
The discovery of a new chemical reaction often leads to new applications and new chemical principles. Low-valent ruthenium and iridium hydride complexes are highly useful redox Lewis acid and base catalysts. Nitriles are activated by these catalysts and undergo reactions with either nucleophiles or electrophiles under neutral conditions. Hydration of nitriles, esterification of nitriles with alcohols, and amidation of nitriles with amines can be performed catalytically together with formation of ammonia. The catalytic reactions of pronucleophiles such as nitriles and carbonyl compounds with electrophiles such as alkenes, alkynes, carbonyl compounds, imines, and nitriles take place generally.
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イリジウム, wire reel, 0.5m, diameter 0.5mm, as drawn, 99.9%
イリジウム, wire reel, 0.5m, diameter 0.38mm, as drawn, 99.9%
イリジウム, rod, 25mm, diameter 3.0mm, as drawn, 99.9%
イリジウム, rod, 25mm, diameter 2.0mm, as drawn, 99.9%
イリジウム, rod, 50mm, diameter 2.0mm, as drawn, 99.9%
イリジウム, foil, 25x25mm, thickness 0.125mm, as rolled, 99.9%
イリジウム, wire, straight, 100mm, diameter 0.5mm, as drawn, 99.9%
イリジウム, wire reel, 0.05m, diameter 0.8mm, as drawn, 99.9%
イリジウム, foil, 25x25mm, thickness 0.15mm, as rolled, 99.9%
イリジウム, foil, 0.025m coil, thickness 0.05mm, coil width .5mm, as rolled, 99.9%
イリジウム, microfoil, disks, 10mm, thinness 0.1μm, specific density 224μg/cm2, permanent mylar 3.5μm support, 99.9%
イリジウム, rod, 50mm, diameter 3.0mm, as drawn, 99.9%
イリジウム, wire reel, 1m, diameter 0.125mm, as drawn, 99.9%
イリジウム, microfoil, disks, 25mm, thinness 0.1μm, specific density 224μg/cm2, permanent mylar 3.5μm support, 99.9%
イリジウム, wire reel, 0.05m, diameter 0.1mm, as drawn, 99.9%
イリジウム, wire reel, 0.1m, diameter 0.15mm, as drawn, 99.9%
イリジウム, foil, 25x25mm, thickness 0.25mm, as rolled, 99.9%
イリジウム, foil, 0.1m coil, thickness 0.05mm, coil width .5mm, as rolled, 99.9%
イリジウム, foil, light tested, 25x25mm, thickness 0.025mm, as rolled, 99.9%
イリジウム, foil, light tested, 25x25mm, thickness 0.05mm, as rolled, 99.9%
イリジウム, wire reel, 0.2m, diameter 0.125mm, as drawn, 99.5%
イリジウム, wire reel, 0.2m, diameter 0.125mm, as drawn, 99.9%
イリジウム, wire reel, 0.2m, diameter 0.5mm, as drawn, 99.9%
イリジウム, wire reel, 0.3m, diameter 0.5mm, as drawn, 99.9%
イリジウム, wire reel, 2m, diameter 0.125mm, as drawn, 99.9%
イリジウム, wire, straight, 200mm, diameter 0.5mm, as drawn, 99.9%
イリジウム, wire, straight, 50mm, diameter 1.0mm, as drawn, 99.9%