Synthesis of (P)- and (M)-6,7-Bis[(diphe
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Peter Mohler; Andreas Johannes Rippert; Hans-Jürgen Hansen
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Article
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2000
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John Wiley and Sons
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German
⚖ 267 KB
The title bis(phosphane) ligands have been prepared starting from optically pure diisopropyl (P)-and (M)-8,12-diphenylbenzo[a]heptalene-6,7-dicarboxylates ((P)-1b and (M)-1b) that had been obtained by HPLC separation of rac-1b on a semi-preparative Chiralcel OD column. Reduction of (P)-1b and (M)-1b