Improved cross-metathesis of acrylate esters catalyzed by 2nd generation ruthenium carbene complexes
摘要:
The performance of cross-metathesis reactions between acrylate esters and olefins catalyzed by Grubbs catalysts have been enhanced by the simple addition of p-cresol. For example, the efficiency of the cross metathesis reaction between methyl acrylate and 1-decene catalyzed by 2 was significantly increased by addition of p-cresol to the reaction mixture, resulting in increased product yields and E/Z ratios. (c) 2005 Elsevier B.V. All rights reserved.
Improved cross-metathesis of acrylate esters catalyzed by 2nd generation ruthenium carbene complexes
作者:Grant S. Forman、Robert P. Tooze
DOI:10.1016/j.jorganchem.2005.07.107
日期:2005.12
The performance of cross-metathesis reactions between acrylate esters and olefins catalyzed by Grubbs catalysts have been enhanced by the simple addition of p-cresol. For example, the efficiency of the cross metathesis reaction between methyl acrylate and 1-decene catalyzed by 2 was significantly increased by addition of p-cresol to the reaction mixture, resulting in increased product yields and E/Z ratios. (c) 2005 Elsevier B.V. All rights reserved.
Formation of Polycyclic Lactones through a Ruthenium-Catalyzed Ring-Closing Metathesis/Hetero-Pauson–Khand Reaction Sequence
作者:David F. Finnegan、Marc L. Snapper
DOI:10.1021/jo200359c
日期:2011.5.20
form multiplecarbon–carbonbonds in one operation can generate molecular complexity quickly and therefore be used to shorten syntheses of desirable molecules. We selected the hetero-Pauson–Khand (HPK) cycloaddition and ring-closing metathesis (RCM) as two unique carbon–carbon bond-forming reactions that could be united in a tandem ruthenium-catalyzed process. In doing so, complex polycyclic products