Results 171 to 180 of about 3,894 (208)

Phenanthridines

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
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Phenanthridine alkaloids from Zanthoxylum madagascariense

Fitoterapia, 2005
Four benzo[c]phenanthridine alkaloids have been isolated from the stem bark of Zanthoxylum madagascariense. These compounds were identified by extensive use of NMR spectroscopy.
M T, Martin, L H, Rasoanaivo, A, Raharisololalao   +2 more
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Synthesis of Phenanthridine Derivatives via Photolysis

The Journal of Organic Chemistry, 2011
An improved photochemical method for producing the prolifically bioactive phenanthridine system is reported. A wide variety of derivatives were obtained in two steps in yields ranging from 31 to 95%.
Linsenmeier, A., Bräse, S., Williams, C. M.   +2 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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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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Acridities and phenanthridines

2020
The acridine and phenanthridine chromophores both contain a central six-membered aromatic nitrogen heterocycle, with benzo rings fused onto each side. Although sulfonated and hydroxylated acridines have been synthesized, none are used as stains. The hydrophilic/lipophilic properties of the dyes under usage conditions are varied.
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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 and characterization of oxadisilole-fused phenanthridines and dioxatrisilole-fused phenanthridines from benzyne

Tetrahedron, 2015
Abstract An efficient protocol for the synthesis of oxadisilole-fused phenanthridines and dioxatrisilole-fused phenanthridines by aza Diels–Alder reactions and dehydrogenation aromatization reactions of benzyne with N-benzylideneanilines in good yields at room temperature.
Jingda Chen, Yali Chen, Xueli Wang, Kundi Kong, Weiguo Cao, Jie Chen   +5 more
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PHENANTHRIDINE N-OXIDES

2002
The N-oxides of the compounds of the formula (I), in which R1, R2, R3, R31, R4, R5, R51 and R6 have the meanings indicated in the description, are novel active bronchial therapeutics.
BYK GULDEN LOMBERG CHEM FAB, GUTTERER BEATE   +1 more
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Benzo[c]phenanthridine alkaloids fromCorydalis incisa

Archives of Pharmacal Research, 2000
Six benzo[c]phenanthridine alkaloids, corynoline (1), acetylcorynoline (2), corynoloxine (3), luguine (4), 6-oxocorynoline (5), and 12-hydroxycorynoloxine (6) were isolated from the aerial parts of Corydalis incisa, and 6 was isolated for the first time from nature. The structure was elucidated by NMR techniques.
D K, Kim, J S, Eun, T Y, Shin, D O, Eom, J P, Lim   +4 more
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