- 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, foil, light tested, 100x100mm, thickness 0.075mm, annealed, 99%
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Nickel, foil, light tested, 100x100mm, thickness 0.05mm, as rolled, 99.98%
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Nickel, wire reel, 5m, diameter 0.025mm, as drawn, 99.98%
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Nickel, wire reel, 50m, diameter 0.025mm, as drawn, 99.6+%
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Nickel, foil, 25mm disks, thickness 0.01mm, 99.95%
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Nickel, foil, 6mm disks, thickness 0.009mm, 99.95%
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Nickel, foil, light tested, 25x25mm, thickness 0.05mm, as rolled, 100%
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Nickel, foil, 6mm disks, thickness 0.075mm, annealed, 99%
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Nickel, foil, light tested, 300x300mm, thickness 0.025mm, 99.9%
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Nickel, foil, light tested, 150x150mm, thickness 0.008mm, 99.95%
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Nickel, foil, 20m coil, thickness 0.125mm, coil width 1mm, as rolled, 99%
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Nickel, foil, 6mm disks, thickness 0.3mm, as rolled, 100%
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Nickel, foil, 8mm disks, thickness 0.15mm, annealed, 99%
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Nickel, foil, 6mm disks, thickness 0.0125mm, 99.9%
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Nickel, foil, 25mm disks, thickness 0.02mm, 99.9%
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Nickel, foil, 8mm disks, thickness 0.025mm, annealed, 99%
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Nickel, foil, 6mm disks, thickness 0.1mm, annealed, 99%
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Nickel, foil, 10mm disks, thickness 0.125mm, as rolled, 100%
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Nickel, foil, 8mm disks, thickness 0.038mm, 99.9%
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Nickel, foil, 1m coil, thickness 0.125mm, annealed, 99.98%
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Nickel, foil, 6mm disks, thickness 0.038mm, 99.9%
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Nickel, foil, 6mm disks, thickness 0.015mm, 99.9%
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Nickel, wire reel, 5m, diameter 0.25mm, as drawn, 99.99+%
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Nickel, wire reel, 500m, diameter 0.25mm, hard, 99.98%
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