Date Published: May 01, 2009
Publisher: International Union of Crystallography
Author(s): Ling-Yan Jian, Xiao-Jing He, Ya-Xin Sun, Qing-Hua Jiang, Xu Zhu.
In the chiral title compound, C38H28O4P2, the intramolecular P⋯P separation is 3.671 (2) Å and the dihedral angle between the two benzene rings in the biphenyl unit is 77.9 (2)°.
For background on asymmetric synthesis and catalysis using this type of chiral ligand, see: Horner et al. (1968 ▶); Aikawa et al. (2004 ▶). For the synthesis, see: Saito et al. (2001 ▶). For a related structure, see: Jones et al. (2003 ▶).