• Medientyp: E-Artikel
  • Titel: A Novel Chiral (salen)AlIII Complex Catalyzed Asymmetric Cyanosilylation of Aldehydes
  • Beteiligte: Zeng, Zebing; Zhao, Guofeng; Zhou, Zhenghong; Tang, Chuchi
  • Erschienen: Wiley, 2008
  • Erschienen in: European Journal of Organic Chemistry, 2008 (2008) 9, Seite 1615-1618
  • Sprache: Englisch
  • DOI: 10.1002/ejoc.200701161
  • ISSN: 1099-0690; 1434-193X
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  • Beschreibung: AbstractA novel chiral (salen)AlIII complex was synthesized through the reaction of Et2AlCl and salen (R,R)‐1 derived from (R,R)‐11,12‐diamino‐9,10‐dihydro‐9,10‐ethanoanthracene. This complex is an efficient catalyst for the asymmetric trimethylsilylcyanation of aldehydes in the presence of tributylphosphane oxide as an additive. The use of 1 mol‐% of the complex led to the corresponding cyanohydrins in high yields (85–94 %) with good‐to‐excellent enantioselectivities (42–92 % ee).(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)