Differential Reactivities of Enyne Substrates in Ruthenium- and Palladium-Catalyzed Cycloisomerizations
作者:Barry M. Trost、Alicia C. Gutierrez、Eric M. Ferreira
DOI:10.1021/ja103663h
日期:2010.7.7
distinct ruthenium and palladium catalysts, decalins and 7,6-bicycles can be obtained with dichotomous stereochemical outcomes. The change in mechanism that accompanies the change in metal affords trans-fused 1,4-dienes with ruthenium and their cis-fused diastereomers under palladiumcatalysis. In the reactions under rutheniumcatalysis, a coordinating group is required and acts to direct the metal