Abstract
In examining the utilization of transition metals in synthetic organic chemistry, iridium is not a metal which comes to the fore. In fact, while its family member, rhodium, sees extensive use for organic synthesis, iridium is pretty much ignored. However, there are quite a number of unusual bond-making and bond-breaking reactions that can occur at an iridium center that suggest that iridium be given a closer look.
In this article, the organometallic chemistry of iridium will be reviewed with special attention paid to unusual transformations of organic groups that are attached to the metal. These include, C-H cleavage, C-C cleavage, as well as quite a number of other bond cleavage reactions such as 8-H, N-H, and O H. The chemistry of iridium with various heterocycles containing 0, N and S will also be discussed, especially the chemistry that has relevance to hydrodesulfurization chemistry.
Beyond bond-breaking reactions, iridium is quite adept at facilitating quite a number of unusual bond-making reactions. The ability of iridium complexes for H-C, 8-C, C-C, and N-C bond-making chemistry will be covered.
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