Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
The 33 checked references that resolve
resolves10.1016/S0040-4039(96)02064-3Conjugated macrocycles related to the porphyrins. Part 7.1 Tropiporphyrin: Tropylium versus porphyrinoid aromaticity
resolves10.1021/ja00861a028<b>Unsaturated Macrocyclic Compounds. XXI.</b><sup>1</sup> <b>The Synthesis of a Series of Fully Conjugated Macrocyclic Polyene-polyynes (Dehydro-annulenes) from 1,5-Hexadiyne</b>
resolves10.1021/ja00762a055Carbon-13 Fourier transform nuclear magnetic resonance study of some porphyrins. Evidence for a preferred delocalization pathway
resolves10.1021/ja00035a017Use of NMR spectroscopy to determine bond orders between .beta.- and .beta.'-pyrrolic positions of porphyrins: structural differences between free-base porphyrins and metalloporphyrins
resolves10.1039/c39910001564Regiospecific introduction of four substituents to porphyrin systems at antipodal pyrrolenic positions
resolves10.1002/anie.199407791Tetra‐<i>p</i>‐tolylporphyrin with an Inverted Pyrrole Ring: A Novel Isomer of Porphyrin
resolves10.1016/0040-4039(95)02100-0Porphyrin synthesis by the “3 + 1” methodology: A superior approach for the preparation of porphyrins with fused 9,10-phenanthroline subunits
resolves10.1002/chem.19960020808Oxypyriporphyrin, the First Fully Aromatic Porphyrinoid Macrocycle with a Pyridine Subunit
resolves10.1016/S0040-4039(97)00287-6Synthesis of novel porphyrin chromophores from nitroarenes: Further applications of the Barton-Zard pyrrole condensation
resolves10.1055/s-1996-4212Synthesis of Carba-Porphyrinoids from Tripyrranes and Unsaturated Dialdehydes
resolves10.1002/anie.199525331Oxybenziporphyrin, a Fully Aromatic Semiquinone Porphyrin Analog with Pathways for 18π‐Electron Delocalization
resolves10.1021/jo00228a048Synthesis and crystal structure of a novel tripyrrane-containing porphyrinogen-like macrocycle
resolves10.1002/anie.199506831Tetraphenanthro[9,10‐<i>b</i>:9,10‐<i>g</i>:9,10‐<i>l</i>:9,10‐<i>q</i>]‐porphyrin, a New Highly Conjugated Porphyrin System
resolves10.1021/ja961227qSynthesis of Tetraphenyltetraacenaphthoporphyrin: A New Highly Conjugated Porphyrin System with Remarkably Red-Shifted Electronic Absorption Spectra
The 17 references without a DOI — listed, not checked
no DOI — not checkedElsevier: Amsterdam
no DOI — not checkedThe resilience of the porphyrin macrocycle leads to the survival of metalloporphyrins as biological fossils in organic-rich sediments such as oil shales and petroleum. Baker, E. W.; Palmer, S. E. InThePorphyrins; Dolphin, D., Ed.; Academic Press: New York, 1978; Vol. 1, pp 486−552. Callot, H. J. InTheChlorophylls; Scheer, H., Ed.; CRC Press: Boca Raton, 1991; pp 339−364.
no DOI — not checkedLash, T. D. InTheMacmillanEncyclopediaofChemistry; Lagowski, J. J., Ed.; Simon & Schuster Macmillan: New York, 1997, Vol. 3, pp 1239−1245.
no DOI — not checkedJanson, T. R.; Katz, J. J. InThePorphyrins; Dolphin, D., Ed.; Academic Press: New York, 1978; Vol. 4, pp 1−59. Scheer, H.; Katz, J. J. InPorphyrinsandMetalloporphyrins; Smith, K. M., Ed.; Elsevier: Amsterdam, 1975, pp 399−524.
no DOI — not checkedjo981872ab00011/jo981872ab00011_1
no DOI — not checkedPorphyrins and Metalloporphyrins
no DOI — not checkedjo981872ab00023/jo981872ab00023_1
no DOI — not checkedjo981872ab00029/jo981872ab00029_1
no DOI — not checkedPorphyrins and Metalloporphyrins
no DOI — not checkedin part, at the 210th National ACS Meeting
no DOI — not checkedMono- and dibenzoporphyrins: (a) Lash, T. D.EnergyFuels1993,7, 166. (b) Clezy, P. S.; Fookes, C. J. R.; Mirza, A. H.Aust.J.Chem.1977,30, 1337. (c) Clezy, P. S.; Mirza, A. H.Aust.J.Chem.1982,35, 197. (d) Clezy, P. S.; Leung, C. W. F.Aust.J.Chem.1993,46, 6, 1705. (e) Bonnett, R.; McManus, K. A.J.Chem.Soc.PerkinTrans.11996, 2461. See also, May, D. A., Jr.; Lash, T. D.J.Org.Chem.1992,57, 4820. Lash, T. D. InAdvancesinNitrogenHeterocycles; Moody, C. J., Ed.; JAI Press: 1995; Vol. 1, pp 19−69.
no DOI — not checkedGen. Chem. USSR 1979, 49, 2467. Kopranenkov, V. N.; Vorotnikov, A. M.; Dashkevich, S. N.; Luk'yanets, E. A. J. Gen. Chem. USSR 1985, 55
no DOI — not checkedPorphyrinsandMetalloporphyrins; Smith, K. M., Ed.; Elsevier: New York, 1975; pp 871−889.
no DOI — not checkedjo981872ab00044/jo981872ab00044_1
no DOI — not checkedjo981872ab00048/jo981872ab00048_1
no DOI — not checkedjo981872ab00049/jo981872ab00049_1
no DOI — not checkedPorphyrinsandMetalloporphyrins, Smith, K. M., Ed.; Elsevier: New York, 1975; p 798.
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