Additional Data on the Synthesis and Properties of Chiral 1,2-Bis(phosphetano)benzenes

The synthesis of chiral, C2-symmetric 1,2-bis(phosphetano)benzenes 2 has been extended to the benzyl-substituted derivative 2c (R=CH2Ph). Stable ruthenium and palladium complexes containing ligands 2 have been isolated. X-Ray diffraction studies have been performed on the monoborane adduct of 2a (R=i-Pr) and on a palladium(II) complex of 2b (R=Me).