Stille couplings catalytic in tin: a "Sn-F" approach.
A new tin recycling method for Stille couplings catalytic in tin is reported. PMHS made hypercoordinate by KF((aq)) allows Me(3)SnH to be efficiently recycled during a Pd(0)-catalyzed hydrostannation/Stille cascade. Relative to previously disclosed protocols, reaction times are shorter and because this process is believed to proceed through a Me(3)SnF intermediate the hazards and problems associated with trimethyltins are also diminished.[reaction: see text]
Maleczka
R E
RE
Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA. maleczka@cem.msu.edu
Gallagher
W P
WP
D002384:Catalysis; D010165:Palladium / Q000737:chemistry; D014002:Tin Fluorides / Q000737:chemistry*; D014298:Trimethyltin Compounds / Q000737:chemistry*
D014002:Tin Fluorides; D014298:Trimethyltin Compounds; D010165:Palladium