Ruthenium-catalyzed transfer-hydrogenative cyclization of 1,6-diynes with hantzsch 1,4-dihydropyridine as a H2 surrogate

Chemistry. 2013 Sep 2;19(36):12034-41. doi: 10.1002/chem.201301846. Epub 2013 Jul 25.

Abstract

The transfer-hydrogenative cyclization of 1,6-diynes with Hantzsch 1,4-dihydropyridine as a H2 surrogate was performed in the presence of a cationic ruthenium catalyst of the type [Cp'Ru(MeCN)3PF6]. Exocyclic 1,3-dienes or their 1,4-hydrogenation products, cycloalkenes, were selectively obtained, depending on the substrate structure and the reaction conditions.

Keywords: alkenes; alkynes; cyclization; ruthenium; transfer hydrogenation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Catalysis
  • Cyclization
  • Cycloparaffins / chemistry*
  • Dihydropyridines / chemistry*
  • Diynes / chemistry*
  • Hydrogenation
  • Molecular Structure
  • Organometallic Compounds / chemistry*
  • Ruthenium / chemistry*

Substances

  • Cycloparaffins
  • Dihydropyridines
  • Diynes
  • Organometallic Compounds
  • 1,4-dihydropyridine
  • Ruthenium