An improved synthesis of Kagan s menthyl substituted titanocene and zirconocene dichloride, comparison of their crystal structures, and preliminary catalyst evaluation

نویسندگان

  • Andreas Gansäuer
  • Sanjay Narayan
  • Harald Bluhm
  • J. Enrique Oltra
  • Juan Manuel Cuerva
  • Antonio Rosales
  • Martin Nieger
چکیده

An improved synthesis of 1 and 2 is described that allows access to these complexes in multigram quantities necessary for catalytic applications. The crystal structures of 1 and 2 are compared and the conformational preferences of the ligands, that are important for catalytic applications, are discussed. Complex 2 was evaluated as a catalyst for carbomagnesation reactions. 2005 Elsevier B.V. All rights reserved.

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تاریخ انتشار 2006