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Nucleophilic Attack on (π‐Allyl)palladium Complexes: Direction of the Attack to the Central or Terminal Carbon Atom by Ligand Control

1995; Wiley; Volume: 34; Issue: 22 Linguagem: Inglês

10.1002/anie.199525511

1521-3773

Ana M. Castaño‐León, Attila Aranyos, Kálmán J. Szabó, Jan‐E. Bäckvall,

Cyclopropane Reaction Mechanisms

Strongly stabilized carbon nucleophiles such as dialkyl malonates can also attack the central carbon of (π-allyl)palladium complexes. The regiochemistry of the reaction (attack at the terminal or C2 carbon atom; see picture) is controlled by the choice of the ligands L in the palladium complex. E = CO2Et, L = PPh3, PtBu3, P(OPh)3, etc.