Efficient Intramolecular C-H Insertion Catalyzed by Iridium Porphyrin Complexes

[摘要]：Octaethylporphyrin and tetraphenylporphyrin Ir(I) and Ir(III) complexes are useful catalysts for intramolecular C-H insertion processes of stabilized diazo compounds. While the Ir(I) complex TPP[Ir(CO)(3)](2) is the most efficient and selective catalyst, the others afford mixtures of cyclization and dimerization products. The effect of the solvent polarity on the selectivity of the reaction is also presented.

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