Abstract
The recent developments in cobalt catalysis are compiled in this
review covering the years 2000 through 2007. Special focus is directed
towards cobalt-catalysed ring-formation reactions as well as towards
cobalt-catalysed (cross-) coupling reactions and synthetically useful
applications thereof in the synthesis of acyclic compounds.
1 Introduction
2 Cobalt-Catalysed Cycloaddition Reactions
2.1 Cyclopropanation
2.2 Four-Membered-Ring Formation
2.3 Five-Membered-Ring Formation
2.4 Six-Membered-Ring Formation
2.5 Seven-Membered-Ring Formation
2.6 Eight-Membered-Ring Formation
2.7 Ten-Membered-Ring Formation
3 Cobalt-Catalysed Synthesis of Acyclic Compounds
3.1 Coupling Reactions between Alkenes and Alkynes
3.2 Cross-Coupling Reactions
3.3 Cobalt-Catalysed Coupling Reactions Using Grignard Reagents
3.4 Hydrocyanation, Hydrophosphination, Hydrosilylation and Hydrovinylation
Reactions
3.5 Nucleophilic Substitution with Organocobalt Reagents
3.6 Cobalt-Catalysed Carbonylative Ring-Expansion and Ring-Opening
Reactions
4 Miscellaneous
5 Conclusions and Outlook
Key words
catalysis - cobalt - coupling reaction - cyclisation - 1,4-dienes - ring expansion