Ruthenium-Catalyzed Cycloisomerization of 1,6-Enynes Initiated by C−H Activation
作者:Barry M. Trost、F. Dean Toste
DOI:10.1021/ja991977a
日期:1999.10.1
Mechanistic Dichotomy in CpRu(CH<sub>3</sub>CN)<sub>3</sub>PF<sub>6</sub> Catalyzed Enyne Cycloisomerizations
作者:Barry M. Trost、F. Dean Toste
DOI:10.1021/ja012450c
日期:2002.5.1
Enynes are easily accessible building blocks as a result of the rich chemistry of alkynes and thus represent attractive substrates for ring formation. A ruthenium catalyst for cycloisomerization effects such reaction of 1,6- and 1,7-enynes typically at room temperature in acetone or DMF under neutral conditions. The reaction is effective for forming five- and six-membered rings of widely divergent