N-vinylpyridinium and -ammonium tetrafluoroborate salts: new electrophilic coupling partners for Pd(0)-catalyzed Suzuki cross-coupling reactions.
N-Vinylpyridinium and -trialkylammonium tetrafluoroborate salts represent a new class of electrophilic coupling partner for Pd(0)-catalyzed Suzuki cross-coupling reactions and give very good to excellent yields of products with a wide range of boronic acids. The salts are easily prepared from activated acetylenes and pyridinium or trialkylammonium tetrafluoroborates to form crystalline, air-stable, and nonhygroscopic crystals. [reaction: see text].
Buszek
Keith R
KR
Department of Chemistry, Kansas State University, 111 Willard Hall, Manhattan, Kansas 66506, USA. buszekk@umkc.edu
Brown
Neil
N
D001897:Boronic Acids / Q000737:chemistry; D002384:Catalysis; D003460:Crystallization; D007700:Kinetics; D008024:Ligands; D009682:Magnetic Resonance Spectroscopy; D010165:Palladium / Q000737:chemistry*; D011726:Pyridinium Compounds / Q000737:chemistry*; D000644:Quaternary Ammonium Compounds / Q000737:chemistry*; D012995:Solubility; D014753:Vinyl Compounds / Q000737:chemistry*
D001897:Boronic Acids; D008024:Ligands; C518451:N-vinylpyridinium; D011726:Pyridinium Compounds; D000644:Quaternary Ammonium Compounds; D014753:Vinyl Compounds; D010165:Palladium