Results 131 to 140 of about 1,676 (183)

Spiropyrans of the phenanthridine series

Chemistry of Heterocyclic Compounds, 1974
The relative stabilities of the cyclic and open forms of spiropyrans of the phenanthridine series depend on the character and position of the substituents in the chromene ring and also on the polarity of the media. The structure of the open forms of the spiropyrans is closer to the limiting dipolar structure.
�. R. Zakhs, V. P. Martynova, L. S. �fros   +2 more
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Redetermination of the structure of phenanthridine

Acta Crystallographica Section C Crystal Structure Communications, 1993
C 13 H 9 N, M r =179.22, orthorhombic, P2 1 2 1 2 1 , a=4.872 (2), b=11.526 (4), c= 15.811 (4) A, V=887.7 (5) A 3 , Z=4, D x = 1.341 Mg m -3 , λ(Mo Kα)=0.71069 A, μ= 0.07 mm -1 , F(000)=376, T=110 K, final R=0.045 for 1713 observed reflections. Phenanthridine was found to be planar in the solid state with a mean deviation of 0.002 A from the mean plane
Brett, W.a., Rademacher, Paul, Boese, Roland   +2 more
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Thiophene Analogus of Phenanthridine

Synthetic Communications, 1972
Abstract We reported reoently1 that the dithienpyridones I-III could be prepared by the cyclisation of the appropriate dithienylazides.
G. J. Heeres, Hans Wynkrg
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Synthesis of phenanthridine derivatives

Bulletin of the Academy of Sciences, USSR Division of Chemical Science, 1966
Hydrogenated derivatives of 9-arylphenanthridine are formed when 1-cyclohexenyl ethyl ether is reacted with Schiff bases in the presence of BF3.
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Millimetre wave spectroscopy of PANHs: phenanthridine

Phys. Chem. Chem. Phys., 2007
The pure rotational spectrum of phenanthridine (C(13)H(9)N), a small polycyclic aromatic nitrogen heterocycle (PANH), has been measured from 48 to 85 GHz employing Stark modulated millimetre wave absorption spectroscopy of a supersonic rotationally cold molecular beam.
Don, McNaughton, Peter D, Godfrey, Ronald D, Brown, Sven, Thorwirth   +3 more
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Synthesis of Pyrrolo[a]- and Pyrrolo[c]phenanthridine Derivatives and Indolinyl and Indolylsubstituted 6-Phenanthridines

Chemistry of Heterocyclic Compounds, 2001
The corresponding Mannich bases have been synthesized by the aminomethylation of 6-methyl-1H-pyrrolo[2,3-a]- and 4-methyl-3H-pyrrolo[3,2-c]phenanthridinium iodides. The interaction of 6-chloro-phenanthridine with indoline and with 5-amino-N-acetylindoline gave the corresponding derivatives of phenanthridine.
E. P. Baberkina, V. N. Buyanov, M. E. Zhukova, A. E. Shchekotikhin, V. E. Zhigachev, N. N. Suvorov   +5 more
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SYNTHESES INVOLVING IMIDOGEN INTERMEDIATES: PHENANTHRIDINES AND BENZO[c]PHENANTHRIDINES

Canadian Journal of Chemistry, 1963
not available
R. A. Abramovitch, D. Newman, G. Tertzakian   +2 more
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The chemotherapy of phenanthridine compounds

Journal of the Society of Chemical Industry, 1947
AbstractAn account is given of the preparation of various phenanthridine compounds and of their use in chemotherapy. Several of the compounds are curative of bovine trypanosomiasis, an African disease transmitted by the tsetse fly, and promise to be of great value in the African colonics.
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The Bromination of Phenanthridine

Journal of the American Chemical Society, 1955
Henry Gilman, John Eisch
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Phenanthridines. VI. The bromination of phenanthridine

Australian Journal of Chemistry, 1969
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