- Stereospecific Ni-catalyzed cross-coupling of potassium alkenyltrifluoroborates with alkyl halides.
Stereospecific Ni-catalyzed cross-coupling of potassium alkenyltrifluoroborates with alkyl halides.
Organic letters (2014-03-29)
Gary A Molander, O Andreea Argintaru
PMID24666316
ABSTRACT
A general method for the alkenylation of alkyl electrophiles using nearly stoichiometric amounts of the air- and moisture-stable potassium organotrifluoroborates has been developed. Various functional groups were tolerated on both the nucleophilic and electrophilic partner. Reactions of highly substituted E- and Z-alkenyltrifluoroborates, as well as vinyl- and propenyltrifluoroborates, were successful, and no loss of stereochemistry or regiochemistry was observed.
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Nickel, tube, 200mm, outside diameter 1.3mm, inside diameter 1.1mm, wall thickness 0.1mm, hard, 99.5%
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Nickel, tube, 200mm, outside diameter 1.57mm, inside diameter 0.63mm, wall thickness 0.47mm, hard, 99.5%
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Nickel, foil, 25mm disks, thickness 0.0075mm, 99.95%
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Nickel, foil, 15mm disks, thickness 0.5mm, as rolled, 100%
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Nickel, foil, 15mm disks, thickness 0.05mm, as rolled, 99.99+%
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Nickel, foil, 15mm disks, thickness 0.0075mm, 99.9%
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Nickel, tube, 100mm, outside diameter 7.11mm, inside diameter 6.57mm, wall thickness 0.27mm, hard, 99.5%
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Nickel, wire reel, 20m, diameter 0.15mm, as drawn, 99%
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Nickel, foil, 15mm disks, thickness 0.125mm, annealed, 99%
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Nickel, tube, 1000mm, outside diameter 1.0mm, inside diameter 0.8mm, wall thickness 0.1mm, hard, 99.5%
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Nickel, foil, 15mm disks, thickness 0.125mm, as rolled, 100%
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Nickel, tube, 1000mm, outside diameter 2.5mm, inside diameter 2mm, wall thickness 0.25mm, hard, 99.5%
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Nickel, foil, 25mm disks, thickness 0.075mm, annealed, 99%
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Nickel, foil, 25mm disks, thickness 0.007mm, 99.95%
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Nickel, tube, 100mm, outside diameter 5.5mm, inside diameter 5mm, wall thickness 0.25mm, hard, 99.5%
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Nickel, tube, 200mm, outside diameter 0.78mm, inside diameter 0.2mm, wall thickness 0.29mm, as drawn, 99.5%
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Nickel, foil, light tested, 50x50mm, thickness 0.0075mm, 99.95%
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Nickel, foil, 25x25mm, thickness 0.25mm, annealed, 99.98%
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Nickel, foil, 150x150mm, thickness 0.5mm, as rolled, 99.99+%
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Nickel, wire reel, 10m, diameter 0.25mm, as drawn, 99.99+%
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