Published as part of the 50 Years SYNTHESIS – Golden Anniversary Issue
Abstract
This short review summarizes recent advances relating to the application of ring-closing olefin-olefin and carbonyl-olefin metathesis reactions towards the synthesis of unsaturated five- and six-membered nitrogen heterocycles. These developments include catalyst modifications and reaction designs that will enable access to more complex nitrogen heterocycles.
1 Introduction
2 Expansion of Ring-Closing Metathesis Methods
3 Evaluation of Catalyst Design
4 Indenylidene Catalysts
5 Unsymmetrical N -Heterocyclic Carbene Ligands
6 Carbonyl-Olefin Metathesis
7 Conclusions
Key words RCM - carbonyl-olefin metathesis - nitrogen heterocycles - catalyst design - ruthenium - Lewis acid catalysis