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American Chemical Society, Organic Letters, 4(10), p. 553-556, 2008

DOI: 10.1021/ol7029118

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Monophosphaporphyrins:  Oxidative π-Extension at the Peripherally Fused Carbocycle of the Phosphaporphyrin Ring

Journal article published in 2008 by Yoshihiro Matano, Makoto Nakashima, Takashi Nakabuchi, Hiroshi Imahori ORCID, Shinya Fujishige, Haruyuki Nakano ORCID
This paper was not found in any repository; the policy of its publisher is unknown or unclear.
This paper was not found in any repository; the policy of its publisher is unknown or unclear.

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Abstract

The 18pi-sigma3- and 22pi-sigma4-phosphaporphyrins were successfully prepared by an acid-promoted condensation between a phosphatripyrrane and a 2,5-bis[hydroxy(phenyl)methyl]pyrrole, and their structures, aromaticity, and optical and electrochemical properties were disclosed. Notably, a sigma4-phosphaporphyrinogen and the 18pi-sigma3-phosphaporphyrin undergo oxidative pi-extension at the peripherally fused carbocycle to afford the 22pi-sigma4-phosphaporphyrin.