Mimicking Polyolefin Carbocyclization Reactions: Gold-Catalyzed Intramolecular Phenoxycyclization of 1,5-Enynes
摘要:
PPh3AuNTf2 promotes highly efficient intramolecular phenoxycyclization reactions on 1,5-enynes under mild conditions. The original tricyclic and functionalized heterocycles were isolated in good to excellent yields. The 6-endo cyclization process is predominant and operates via a biomimetic cascade cation-olefin process. The efficiency of this system was further demonstrated in the cycloisomerization reaction of a 1,5,9-dienyne.
[EN] ORGANOGOLD COMPLEXES AND METHODS FOR MAKING THE SAME<br/>[FR] COMPLEXES D'ORGANO-OR ET LEURS PROCÉDÉS DE PRÉPARATION
申请人:UNIV SUSSEX
公开号:WO2012131313A1
公开(公告)日:2012-10-04
The present invention relates to chiral ligands deriving from a- and β-amino acids, and from metal complexes formed from the same. The ligands are useful with catalytic gold complexes, particularly Au(l) complexes.
ORGANOGOLD COMPLEXES AND METHODS FOR MAKING THE SAME
申请人:Viseux Eddy Michel Elie
公开号:US20140039200A1
公开(公告)日:2014-02-06
The present invention relates to chiral ligands deriving from α- and β-amino acids, and from metal complexes formed from the same. The ligands are useful with catalytic gold complexes, particularly Au(I) complexes.