Stereospecific construction of a trans-1,4-diphosphacyclohexane skeleton |
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| Authors: | Morisaki Yasuhiro Imoto Hiroaki Ouchi Yuko Nagata Yuuya Chujo Yoshiki |
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| Institution: | Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan. chujo@chujo.synchem.kyoto-u.ac.jp |
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| Abstract: | 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. |
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