Porphyrin View Full Text


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Article Info

DATE

1993-02

AUTHORS

G. V. Ponomarev, A. M. Shul'ga, B. V. Rozynov

ABSTRACT

A new previously unknown double intramolecular cyclization has been discovered on thermolyzing nickel complexes of Schiff's bases of porphyrins containing propionic acid ester residues. This leads to the formation of cyclopentaneporphyrin lactams. Using coproporphyrin-I and -II derivatives as examples, the corresponding lactams were obtained, the structures of which were confirmed by PMR spectra using the nuclear Overhauser effect (NOE). A general scheme for the thermal decomposition of Schiff's bases of meso-formylporphyrins is proposed. More... »

PAGES

155-162

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf00531657

DOI

http://dx.doi.org/10.1007/bf00531657

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1004515699


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