A new porphyrin bearing chloroper-fluoropolyether substituents at the meso positions was prepared in five steps starting from chloroper-fluoropolyether carboxylic acid. Furthermore, metallation of this porphyrin was accomplished with cobalt and zinc. Both, the free base and its complex with zinc are highly soluble in supercritical CO2 under very mild conditions (40 0C and 20 MPa) thus allowing, in principle, to perform homogeneous catalytic processes in this non conventional reaction medium.
Synthesis of a Novel Porphyrin bearing Chloroper-fluoropolyether moieties with very high Solubility in Supercritical CO2
CAMPESTRINI, SANDRO;TONELLATO, UMBERTO
2001
Abstract
A new porphyrin bearing chloroper-fluoropolyether substituents at the meso positions was prepared in five steps starting from chloroper-fluoropolyether carboxylic acid. Furthermore, metallation of this porphyrin was accomplished with cobalt and zinc. Both, the free base and its complex with zinc are highly soluble in supercritical CO2 under very mild conditions (40 0C and 20 MPa) thus allowing, in principle, to perform homogeneous catalytic processes in this non conventional reaction medium.
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