Access the full text.
Sign up today, get DeepDyve free for 14 days.
J. Sletten, L. Jensen (1969)
The crystal and molecular structure of hypoxanthine hydrochloride monohydrateActa Crystallographica Section B Structural Crystallography and Crystal Chemistry, 25
M. Begtrup, C. Pedersen, O. Smidsrod, G. Eriksson, R. Blinc, S. Pausak, L. Ehrenberg, J. Dumanović (1966)
Studies on Methylated 1,2,3-Triazoles. III.Acta Chemica Scandinavica, 20
Hirohide Chosho, K. Ichimura, M. Ohta (1964)
The Reactions of N -Substituted Thioamides with α-HalonitrilesBulletin of the Chemical Society of Japan, 37
H. Ringertz (1966)
The molecular and crystal structure of uric acidActa Crystallographica, 20
D. Sutor (1958)
The structures of the pyrimidines and purines. VI. The crystal structure of theophyllineActa Crystallographica, 11
M. Spencer (1959)
The stereochemistry of deoxyribonucleic acid. I. Covalent bond lengths and anglesActa Crystallographica, 12
M. Ohta, M. Sugiyama (1963)
The Synthesis of New Meso-ionic Compounds from Cyanomethyl DithiobenzoateBulletin of the Chemical Society of Japan, 36
F. Stewart (1964)
The Chemistry of the SydnonesChemical Reviews, 64
E. Roche, D. Stansloski (1970)
Synthetic studies on mesoionic compounds. The mesoionic 1,3-diazol-4-one system†Journal of Heterocyclic Chemistry, 7
Shigeru Sato, T. Mase, M. Ohta (1968)
The Preparation of Mesoionic 5-Imino-3,5-dihydro-1,3-oxazole DerivativesBulletin of the Chemical Society of Japan, 41
H. Bredereck, Gottfried Kupsch, H. Wieland (1959)
Synthesen in der Purinreihe, VIII. „Desoxyharnsäuren”︁: Ihre Konstitution als Xanthiniumbetaine und neue SynthesenChemische Berichte, 92
H. Kato, M. Ohta (1959)
Studies on Meso-ionic Compounds. IX. Sydnone-4-carboxylic acid via Lithium CompoundBulletin of the Chemical Society of Japan, 32
H. Bredereck, O. Christmann, W. Koser (1960)
Synthesen in der Purinreihe, X. Struktur und Synthese des HerbipolinsChemische Berichte, 93
R. Dougherty, R. Foltz, L. Kier (1970)
Molecular orbital approaches to the interpretation of organic mass spectraTetrahedron, 26
W. Baker, W. Ollis, V. Poole (1949)
73. Cyclic meso-ionic compounds. Part I. The structure of the sydnones and related compoundsJournal of The Chemical Society (resumed)
L. Kier, E. Roche (1967)
Medicinal chemistry of the mesoionic compounds.Journal of pharmaceutical sciences, 56 2
M. Begtrup, C. Pedersen, B. Jerslev, A. Kallner (1965)
The Methylation of Some 5-Hydroxy-1,2,3-triazoles.Acta Chemica Scandinavica, 19
N. Singer, P. Whittington, G. Boyd (1970)
Molecular orbital calculations on pyrylium salts—IITetrahedron, 26
W. Baker, W. Ollis, V. Poole (1950)
320. Cyclic meso-ionic compounds. Part III. Further properties of the sydnones and the mechanism of their formationJournal of The Chemical Society (resumed)
L. Townsend, R. Robins (1962)
Potential Purine Antagonists. XXXIV. The Synthesis of 3-Methylguanine and a Study of the Structure and Chemical Reactivity of Certain 3-MethylpurinesJournal of the American Chemical Society, 84
L. Kier, E. Roche (1966)
Molecular Orbital Calculations of the Electronic Structure of the SydnonesJournal of Pharmaceutical Sciences, 55
H. Figeys (1970)
Quantum-chemical studies on the aromaticity of conjugated systems. Re-evaluation of the "thermodynamical" value of β and calculation of the heat of atomization of polycyclic aromatic hydrocarbons by the improved huckel-methodTetrahedron, 26
H. Mez, J. Donohue (1969)
Refinement of the crystal structure of xanthazole monohydrate, C4H3N5O2· H2OZeitschrift Fur Kristallographie, 130
E. Roche, L. Kier (1968)
A molecular orbital study of the reactions of sydnonesTetrahedron, 24
A. Streitwieser (1960)
A Molecular Orbital Study of Ionization Potentials of Organic Compounds Utilizing the ι-Technique1Journal of the American Chemical Society, 82
R. Huisgen, E. Funke, F. Schaefer, H. Gotthardt, E. Brunn (1967)
Cycloadditionen mesoionischer oxazol-5-one an einige heteromehrfachbindungenTetrahedron Letters, 8
J. Sletten, E. Sletten, L. Jensen (1968)
A reinvestigation of 8-azaguanine monohydrate.Acta crystallographica. Section B: Structural crystallography and crystal chemistry, 24 12
Thirty mesoionic analogs of purin‐6‐one, ‐2‐one and ‐2,6‐dione have been formulated based upon reported simple monocyclie mesoionic systems and factors influencing their stability. lluckel molecular orbital calculations were performed for these structures employing the ω, ω′ ‐technique and the variation of resonance integrals with bond orders. The results provide predictions concerning the properties and stability of the analogs, assist the determination of reasonable synthetic goals, and serve as input for more sophisticated theoretical treatments.
Journal of Heterocyclic Chemistry – Wiley
Published: Dec 1, 1971
Read and print from thousands of top scholarly journals.
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Copy and paste the desired citation format or use the link below to download a file formatted for EndNote
Access the full text.
Sign up today, get DeepDyve free for 14 days.
All DeepDyve websites use cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser.