Abstract
New phosphino-ferrocene carboxylic acids with only planar chirality ( Sp)- 3 and ( Sp)- 4 have been synthesized conveniently from ( S, Sp)- 5 and ( S, Sp)- 7. They were used as ligands in palladium-catalyzed allylic alkylation of cycloalkenyl acetates. With ligand ( Sp)- 4, high yield and good ee were given for reactions of a series of cycloalkenyl acetates and nucleophiles.
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