Organic & Biomolecular Chemistry 2015-06-21

Corrole and nucleophilic aromatic substitution are not incompatible: a novel route to 2,3-difunctionalized copper corrolates.

M Stefanelli, F Mandoj, S Nardis, M Raggio, F R Fronczek, G T McCandless, K M Smith, R Paolesse

Index: Org. Biomol. Chem. 13 , 6611-8, (2015)

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Abstract

The insertion of a -NO2 group onto the corrole framework represents a key step for subsequent synthetic manipulation of the macrocycle based on the chemical versatility of such a functionality. Here we report results of the investigation of a copper 3-NO2-triarylcorrolate in nucleophilic aromatic substitution reactions with "active" methylene carbanions, namely diethyl malonate and diethyl 2-chloromalonate. Although similar reactions on nitroporphyrins afford chlorin derivatives, nucleophilic attack on carbon-2 of corrole produces 2,3-difunctionalized Cu corrolates in acceptable yields (ca. 30%), evidencing once again the erratic chemistry of this contracted porphyrinoid.

Related Compounds

  • Chloroform
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