Allylic substitution of meso-1,4-diacetoxycycloalkenes in water with an amphiphilic resin-supported chiral palladium complex
Asymmetric π-allylic substitution of meso-1,4-diacet-oxycyclopentene and meso-1,4-diacetoxycyclohexene with various nucleophiles was performed with an amphiphilic polystyrene-polyethylene glycol) (PS-PEG) resin-supported chiral imidazoin-dolephosphine-palladium complex in water as a single reaction medium under heterogeneous conditions to give the corresponding 1-acetoxy-4-substituted cycloalkenes with up to 99% ee.