Stereospecific construction of a trans-1,4-diphosphacyclohexane skeleton.
trans-1,4-Diphosphacyclohexanes were successfully synthesized by the stereospecific intramolecular coupling reaction of the optically active bisphosphine. This is a new route for the construction of the trans-1,4-diphosphacyclohexane skeleton. A cis isomer was also prepared along with the trans isomer from a mixture of rac- and meso-bisphosphines. The coordinated boranes were easily removed to afford the corresponding 1,4-diphosphacyclohexanes.
Morisaki
Yasuhiro
Y
Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan. chujo@chujo.synchem.kyoto-u.ac.jp
Imoto
Hiroaki
H
Ouchi
Yuko
Y
Nagata
Yuuya
Y
Chujo
Yoshiki
Y