Synthesis of oligomers including eight P-chiral centers and the construction of the 12-phosphacrown-4 skeleton

The optically active oligomers, (S,R,R,S)-2, (S,R,S,R,R,S,R,S)-3, and 12-phosphacrown tetraborane 4, were synthesized by a stepwise oxidative coupling reaction. The behaviors of these optically active oligomers in the solid state and in solution were investigated in detail. The stepwise oxidative co...

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Bibliographic Details
Published in:Tetrahedron letters 2005-10, Vol.46 (41), p.7011-7014
Main Authors: Morisaki, Yasuhiro, Ouchi, Yuko, Fukui, Tatsuki, Naka, Kensuke, Chujo, Yoshiki
Format: Article
Language:English
Subjects:
12-Phosphacrown-4
Chiral phosphorus atoms
Optically active oligomer
Oxidative coupling reaction
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Summary:The optically active oligomers, (S,R,R,S)-2, (S,R,S,R,R,S,R,S)-3, and 12-phosphacrown tetraborane 4, were synthesized by a stepwise oxidative coupling reaction. The behaviors of these optically active oligomers in the solid state and in solution were investigated in detail. The stepwise oxidative coupling reaction from (S,S)-1 gave optically active oligomers, (S,R,R,S)-2 and (S,R,S,R,R,S,R,S)-3, having four and eight chiral phosphorus atoms, respectively. The behaviors of these oligomers in the solid state and in solution were investigated in detail. The first construction of a 12-phosphacrown-4 skeleton was also reported.
ISSN:0040-4039
1873-3581
DOI:10.1016/j.tetlet.2005.08.039