Synthesis and Reactions of 20 π-Electron β-Tetrakis(trifluoromethyl)-meso-tetraphenylporphyrins
Journal of the American Chemical Society2007Vol. 129(18), pp. 5814–5815
Citations Over TimeTop 10% of 2007 papers
Abstract
The 20 π-electron nonaromatic isophlorin 2 had been successfully isolated and thoroughly characterized and was formed by reduction of Cu(II) β-tetrakis(trifluoromethyl)-meso-tetraphenylporphyrin (Cu1) with activated zinc powder. However, the reaction utilizing Ni(II) β-tetrakis(trifluoromethyl)-meso-tetraphenylporphyrin (Ni1) as a substrate and Na2S2O4 as a reductant at 100 °C resulted in the formation of a porphydimethene 5. Subsequent N-methylation of the isophlorin 2 led to N-dimethylated isophlorin 3 or N-tetramethylated isophlorin 4 depending on the choice of the base used.
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