Journal
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
Volume 2020, Issue 12, Pages 1811-1816Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.201901659
Keywords
Porphycenes; Isocorroles; Ring contraction; Skeletal rearrangement; Reaction mechanisms
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Funding
- JSPS KAKENHI [JP18H04265, JP19K22204]
- Toyota Physical and Chemical Research Institute
- Tonen General Sekiyu
- CASIO SCIENCE PROMOTION FOUNDATION
- Kyushu University QR program
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In this study, the ring contracting skeletal rearrangement reaction in one-pot under basic conditions from octaethylporphycene to two types of isocorroles, i.e., the meso-formyl and meso-free forms, was confirmed and the reaction mechanism was proposed by the comparative analyses of the experimental and theoretical studies. The electron accepting nature of the porphycene and imine-amine conversion of pyrrole rings make it possible to react with hydroxide ions and the following reaction to afford isocorroles. Based on this reaction, the valence of the compound as a ligand as well as the photochemical and electrochemical properties were dramatically changed.
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