Regioselective cyclization of alpha,omega-alkynoic acids catalysed by TpRu complexes: synthesis of endocyclic enol lactones [Tp = hydrotris(pyrazolyl)borate]

Chem Commun (Camb). 2001 Nov 21:(22):2324-5. doi: 10.1039/b106647c.

Abstract

The sigma-enynyl complex [TpRu(C(Ph)=C(Ph)C identical to CPh)(P-MeiPr2)] efficiently catalyses the regioselective cyclization of alpha,omega-alkynoic acids to yield endocyclic enol lactones having ring size up to 12 atoms.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkynes
  • Carboxylic Acids / chemistry
  • Catalysis
  • Cyclization
  • Lactones / chemical synthesis*
  • Lactones / chemistry
  • Organometallic Compounds / chemistry
  • Ruthenium / chemistry

Substances

  • Alkynes
  • Carboxylic Acids
  • Lactones
  • Organometallic Compounds
  • Ruthenium