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Synthesis 1995; 1995(4): 423-426
DOI: 10.1055/s-1995-3917
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Enantioselective Catalysis; Part 93: Optically Active Expanded Phosphanes Derived from 1,2-Bisphosphanobenzene and Amides and Esters of Acrylic Acid

H. Brunner* , G. Net
  • *Institut für Anorganische Chemie, Universität Regensburg, D-93040 Regensburg, Germany, Fax +49(941)4505
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Publication Date:
31 December 2000 (online)

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Three new expanded phosphanes were synthesized by reaction of 1,2-bisphosphanobenzene with optically active derivatives of acrylic acid: (R)-(+)-N-methyl-N-(1-phenethyl)acrylamide, (1S,2R,5S)-(+)-menthyl acrylate and (1S)-endo-(-)-bornyl acrylate. The three phosphanes with [Rh2(μ-Cl)2(COD)2] as in situ catalysts, as well as the isolated complexes [Rh(PP)(COD)]PF6, where PP and COD denote a phosphane and 1,5-cyclooctadiene, respectively, were tested in several enantioselective catalytic reactions.

expanded optically active phosphanes - P-H addition to double bonds - enantioselective transition-metal catalysis