ChemInform Abstract: An Efficient One‐Pot Procedure for Asymmetric Bifunctionalization of 5,15‐Disubstituted Porphyrins: A Simple Preparation of meso Acyl‐, Alkoxycarbonyl‐, and Carbamoyl‐Substituted meso‐Formylporphyrins.

Abstract

Alkoxycarbonyl-, and Carbamoyl-Substituted meso-Formylporphyrins. -A series of substituted meso-formylporphyrins (IV) and (VI) is prepared in good yields via nucleophilic substitution of porphyrins (I) with lithiumorganic compound (II) as a latent formyl group, subsequent acylation or reaction with isocyanates followed by hydrolysis and oxidation. -(TAKANAMI, T.; WAKITA, A.; MATSUMOTO, J.; SEKINE, S.; SUDA*, K.; Chem.