Practical synthesis of P-stereogenic diphosphacrowns.
P-Stereogenic 18-diphosphacrown-6 derivatives containing a chiral bisphosphine unit were synthesized. This is the first practical method for the synthesis of optically pure diphosphacrowns. The diphosphacrowns have the structure of a chiral figure "8" with chiral heteroatoms that interact directly with guest ions and molecules. Pd(II) and Pt(II) complexes with the P-stereogenic diphosphacrowns were also synthesized and characterized.
Morisaki
Yasuhiro
Y
Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan. ymo@chujo.synchem.kyoto-u.ac.jp
Imoto
Hiroaki
H
Tsurui
Kazuhiko
K
Chujo
Yoshiki
Y