Electronic effects in reversible 1,2-rearrangement of planar porphyrinato rhodium(III) alkyls

Abstract

Several β-substituted ethyl planar porphyrinato rhodium(III) complexes were found to undergo reversible alkyl 1,2-rearrangements at 120 °C with the reaction rates and the equilibrium positions depending on the electronic nature of the β-substituents, and Rh(ttp)CH₂CH₂Ph 1 and Rh(ttp)CH(CH₃)Ph 4 were characterized by single crystal X-ray crystallography.