Abstract
The progress in catalytic organic synthesis with iridium was far behind that with rhodium or palladium in the early 1990s. However, many useful reactions have recently been reported, and iridium catalysts have now been recognized to be useful in organic synthesis. This review covers iridium-catalyzed carbon-carbon and carbon-heteroatom bond formation with particular emphasis on useful reactions for organic synthesis.
1 Introduction
2 Allylic Substitution
2.1 Allylic Alkylation
2.2 Allylic Amination
2.3 Allylic Etherification
3 Reaction of Alkynes
3.1 Cyclotrimerization of Alkynes
3.2 Cycloaddition of Enynes
3.3 Cycloisomerization of Enynes
3.4 Dimerization
3.5 Alkynylation
4 Alkylation with Alcohols
4.1 N-Alkylation
4.2 C-Alkylation
5 Aldol and Related Reactions
6 Carbonylation
7 Miscellaneous Reactions
8 Conclusion
Key words
iridium - asymmetric catalysis - allylations - alkynes - aldol reactions