- 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.
MATERIALS
Product Number
Brand
Product Description
Nickel, foil, 2m coil, thickness 0.5mm, annealed, 99.98%
Nickel, foil, 150x300mm, thickness 0.25mm, annealed, 99.98%
Nickel, mesh, 30x30mm, nominal aperture 0.34mm, thickness 0.025mm, wire diameter 0.041mm, 70 wires/inch, open area 80%, electro-formed mesh, 99.9%
Nickel, foil, 50x50mm, thickness 0.25mm, as rolled, 99.99+%
Nickel, foil, not light tested, 300x300mm, thickness 0.0125mm, annealed, 99%
Nickel, wire reel, 10m, diameter 0.25mm, hard, 99.98%
Nickel, foil, 10mm disks, thickness 0.0075mm, 99.9%
Nickel, foil, 0.2m coil, thickness 0.004mm, hard, 99%
Nickel, foil, 25x25mm, thickness 0.25mm, annealed, 99%
Nickel, foil, 0.5m coil, thickness 0.025mm, coil width 600mm, as rolled, 99%
Nickel, foil, 150x300mm, thickness 0.5mm, annealed, 99.98%
Nickel, foil, light tested, 50x50mm, thickness 0.05mm, as rolled, 100%
Nickel, rod, 1000mm, diameter 6.35mm, 99%
Nickel, foil, 2m coil, thickness 0.075mm, annealed, 99%
Nickel, foil, not light tested, 50x50mm, thickness 0.007mm, 99.95%
Nickel, wire reel, 10m, diameter 0.4mm, as drawn, 99%
Nickel, foil, 2m coil, thickness 0.025mm, annealed, 99%
Nickel, foil, 50x50mm, thickness 1.0mm, as rolled, 99.99+%
Nickel, wire reel, 1m, diameter 0.4mm, as drawn, 99.99+%
Nickel, wire reel, 10m, diameter 0.01mm, as drawn, 99.98%
Nickel, wire reel, 100m, diameter 0.025mm, as drawn, 99.98%
Nickel, foil, 4mm disks, thickness 0.003mm, 99.95%
Nickel, wire reel, 0.1m, diameter 0.75mm, as drawn, 99.99+%
Nickel, foil, 2m coil, thickness 0.15mm, annealed, 99%
Nickel, foil, light tested, 300x300mm, thickness 0.05mm, annealed, 99%
Nickel, foil, light tested, 100x100mm, thickness 0.05mm, as rolled, 99.99+%