Hiroyuki Furuta

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT"N-Confused Porphyrin": A New Isomer of TetraphenylporphyrinHiroyuki Furuta, Tsutomu Asano, and Takuji OgawaCite this: J. Am. Chem. Soc. 1994, 116, 2, 767–768Publication Date (Print):January 1, 1994Publication History Published online1 May 2002Published inissue 1 January 1994https://pubs.acs.org/doi/10.1021/ja00081a047https://doi.org/10.1021/ja00081a047research-articleACS PublicationsRequest reuse permissionsArticle Views3573Altmetric-Citations613LEARN

This article mainly deals with the recent serendipity of novel porphyrin analogs such as N-confused porphyrin. The unique property of this ligand allows the formation of a variety of metal complexes. The important aspect of dynamic flipping (inversion), induced either by confusion or expansion of the macrocyclic core, that leads to the generation of new porphyrinoids, is emphasized. This review concludes with the recent progress on expanded porphyrins bearing confused, inverted, and fused pyrrol

A doubly N-confused porphyrin (N2CP), 2-ethoxy-5,10,15,20-tetrapentafluorophenyl-3,7-diaza-21,22-dicarbaporphyrin, and its Ag(III) and Cu(III) complexes were synthesized for the first time, via an acid-catalyzed condensation of pentafluorobenzaldehyde and meso-pentafluorophenyl-2,3‘-dipyrromethane. 1H NMR and single-crystal X-ray diffraction analyses reveal the arrangement of the three hydrogens (two CH and one NH) in the core of N2CP both in solution and in the solid state, respectively. The di

This article introduces an overview of progressively developing chemistry of N-confused porphyrin and related macrocycles. Study on confusion results in discovery of fusion and combination with expansion or contraction has provided uniquely important classes of porphyrinoids. Syntheses, properties and coordination chemistry of such porphyrinoids are briefly described. Possibilities in applications are also mentioned.

The synthesis, characterization, and X-ray structure of the first example of an air-stable silver(III) complex of an N-confused tetraphenylporphyrin (5,10,15,20-tetraphenyl-2-aza-21-carbaporphyrin argentate(III) or Ag(III)NCTPP, 7) is reported. Crystals of Ag(III)NCTPP·CH2Cl2 belong to the monoclinic space group P21/c (No. 14), with a = 9.038(4) Å, b = 15.097(3) Å, c = 25.578(8) Å, β = 91.32(3)°, and Z = 4. The lengths (Å) of the three silver−nitrogen and one silver−carbon bonds are inequivalent

ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXT"N-Fused Porphyrin" from N-Confused PorphyrinHiroyuki Furuta, Tomoya Ishizuka, Atsuhiro Osuka, and Takuji OgawaView Author Information Department of Chemistry, Graduate School of Science Kyoto University, Kyoto 606-8502, Japan Institute for Fundamental Research of Organic Chemistry (IFOC) Kyushu University, Fukuoka 812-8581, Japan Cite this: J. Am. Chem. Soc. 1999, 121, 12, 2945–2946Publication Date (Web):March 11, 1999Publication History Receive

ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTNH Tautomerism of N-Confused PorphyrinHiroyuki Furuta, Tomoya Ishizuka, Atsuhiro Osuka, Hirohisa Dejima, Hidenori Nakagawa, and Yuichi IshikawaView Author Information Department of Chemistry, Graduate School of Science Kyoto University, Kyoto 606-8502, Japan Department of Applied Chemistry Faculty of Engineering, Oita University Oita, 870-1192, Japan Cite this: J. Am. Chem. Soc. 2001, 123, 25, 6207–6208Publication Date (Web):May 31, 2001Publicati

The syntheses and X-ray structures of novel porphyrinoids, “N-fused porphyrins (NFPs)”, and their reactivity were described. NFP was spontaneously produced from the bromo-substituted N-confused tetraarylporphyrin in a pyridine solution at room temperature. X-ray diffraction analyses revealed that the porphyrinoid core containing a fused tri-pentacyclic ring is almost planar. The deviation from the mean plane of 4e‘, for example, was within 0.30 Å. The peripheral aryl substituents were tilted 50.

An inner-coordinated Pd complex and inner- and outer-N coordinated, double-decker Pd complexes of N-confused tetratolylporphyrin have been synthesized, and their structures were elucidated by X-ray single-crystal analyses.

Confusion is a novel concept of isomerism in porphyrin chemistry, delivering a steady stream of new chemistry since the discovery of N-confused porphyrin, a porphyrin mutant, in 1994. These days, the number of confused porphyrinoids is increasing, and confusion and associated fusion are found in various fields such as supramolecular chemistry, materials chemistry, biological chemistry, and catalysts. In this review, the birth and growth of confused porphyrinoids in the last three decades are des

Novel quinoxaline derivatives bearing dipyrromethane or tripyrromethane substituents act as improved anion receptors as compared to the unsubstituted dipyrrolylquinoxaline core from which they are derived.

More confused than ever: Three types of N-confused corrole isomers (NCCs) were synthesized, and the structures of these isomers were revealed by single-crystal X-ray crystallography. The position of the confused pyrrole ring in the NCC has a pronounced effect on optical and anion-binding properties. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by

Tetra- and dinuclear Zn(II) N-confused porphyrin dimers (1, 2) and pyridine-coordinating Zn(II) monomer complex (3) were synthesized, and the ditopic, inner and outer coordination of Zn metal in the dimer complex (1) was demonstrated by X-ray analyses.

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhosphate anion binding: enhanced transport of nucleotide monophosphates using a sapphyrin carrierHiroyuki Furuta, Michael J. Cyr, and Jonathan L. SesslerCite this: J. Am. Chem. Soc. 1991, 113, 17, 6677–6678Publication Date (Print):August 1, 1991Publication History Published online1 May 2002Published inissue 1 August 1991https://pubs.acs.org/doi/10.1021/ja00017a051https://doi.org/10.1021/ja00017a051research-articleACS PublicationsRequest reuse permissi

Rare organometallic complexes can be stabilized by using an N-confused system as a carbon ligand. A stable organocopper(II) compound of N-confused calix[4]phyrin has been characterized by X-ray crystallography. Complete π conjugation was found not to be a prerequisite for the formation of the metal-carbon bond.