1130440-65-1Relevant articles and documents
Stille coupling involving bulky groups feasible with gold cocatalyst
Delpozo, Juan,Carrasco, Desiree,Perez-Temprano, Monica H.,Garcia-Melchor, Max,Alvarez, Rosana,Casares, Juan A.,Espinet, Pablo
, p. 2189 - 2193 (2013)
Gold shuttle: Bulky groups, which will not (or only very sluggishly) undergo Stille coupling with stannanes and inexpensive ligands, can be efficiently coupled using bimetallic catalysis. A gold cocatalyst serves as an efficient shuttle to convey the bulky group from tin to palladium by reducing the steric crowding in the transition-states (see scheme). Copyright
Palladium-catalyzed cross-coupling reactions of organogold(i) phosphanes with allylic electrophiles
Pena-Lopez, Miguel,Ayan-Varela, Miguel,Sarandeses, Luis A.,Sestelo, Jose Perez
, p. 1686 - 1694 (2012/03/22)
Aryl and alkenylgold(i) phosphanes react regioselectively with allylic electrophiles such as cinnamyl and geranyl halides (bromide, chloride and acetates) under palladium catalysis in THF at 80 °C to afford the α-substitution product with moderate to high yields. When the reaction is performed with a chiral enantiopure secondary acetate, the α-substituted cross-coupling product is obtained with complete inversion of the stereochemistry.