1993•Chemistry LettersRequires access

5,10,15,20-Tetrakis(2-amino-6-methoxycarbonylphenyl)porphyrin. Synthesis and Separation of Atropisomers Useful for Porphyrin Architecture

Norikazu Nishino, Toshiaki Sakamoto, Hiroshi Kiyota, Hisakazu Mihara, Tomoko Yanai, Tsutomu Fujimoto

Abstract

Abstract 5,10,15,20-Tetrakis(2-amino-6-methoxycarbonylphenyl)porphyrin was synthesized and three atropisomers in four were successfully separated. Different from the related mono-substituted tetraphenylporphyrins (2-amino- and 2-methoxycarbonylphenylporphyrins), the rotation of the bond between phenyl and porphyrin rings was totally prohibited under thermal isomerization.

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Key concepts: Atropisomer, Porphyrin, Chemistry, Isomerization, Photochemistry, Stereochemistry, Medicinal chemistry, Polymer chemistry