A new general method for selective β-polynitration of porphyrins; preparation and redox properties of Zn-porphyrins bearing one through to eight β-nitro substituents and X-ray structure of the first Zn β-pernitro porphyrin
作者:Magali Palacio、Virginie Mansuy-Mouries、Guillaume Loire、Karine Le Barch-Ozette、Philippe Leduc、Pierrette Battioni、Daniel Mansuy、Kathleen M. Barkigia、Jack Fajer
DOI:10.1039/b004160m
日期:——
20-tetrakis(2,6-dichlorophenyl)porphyrin, Zn(TDCPP), is achieved by controlled titration with the HNO3–CF3SO3H–(CF3S O2)2O system, and affords a full series of Zn porphyrins bearing one through to eight β-nitro groups in high yield and exhibiting a wide range of reduction potentials (from −920 to +155 mV vs. SCE); an X-ray structure of the first reported β-pernitrated Zn porphyrin Zn(TDCPN8P)(EtOH)2·2EtOH
β‐Polynitration of 5,10,15,20‐<i>tetrakis</i>(2′,6′‐Dichlorophenyl)porphyrins with HNO<sub>3</sub> and Cu(NO<sub>3</sub>)<sub>2</sub> on Clay Using Microwave Irradiation
作者:S. M. S. Chauhan、Anil Kumar、K. A. Srinivas
DOI:10.1081/scc-200025635
日期:2004.1.1
An expeditious beta-polynitration of 5,10,15,20-tetrakis(2',6-dichlorophenyl) porphyrin, its Zn and Cu derivatives with montmorillonite K10-HNO3 and montmorillonite K10-Cu(NO3)(2) (claycop) under mild conditions using microwave irradiation in 72-95% yields has been described.