Alkane activation dehydrogenation, homogeneous

The high activity of iridium PCP pincer complexes in transfer dehydrogenation has been applied in a very elegant approach to devise the first homogeneous alkane metathesis process (Equation 12.5) [3]. 

As seen from the discussions, there are numerous heterogeneous catalysts suitable for the dehydrogenation of alkanes. In sharp contrast, homogeneous catalysts are rare. Exceptions are the Ir pincer complexes (7a and 7b), which are extraordinarily active and robust catalysts.333... 

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