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Short Paper | Regular issue | Vol 85, No. 10, 2012, pp.2543-2550
Published online, 27th August, 2012
DOI: 10.3987/COM-12-12560
Stereospecific Synthesis of trans-1,4-Diphosphacyclohexanes

Yasuhiro Morisaki,* Hiroaki Imoto, Ryosuke Kato, Yuko Ouchi, and Yoshiki Chujo*

*Department of Polymer Chemistr, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan

Abstract

Stereospecific synthesis of trans-1,4-diphosphacyclohexanes via intramolecular oxidative coupling of P-stereogenic bisphosphine borane complexes is reported. Regardless of the enantiopurity of the starting materials, only trans-isomers were formed. The synthesis and characterization of the obtained products are described in detail herein.