Results 1 to 10 of about 4,972 (216)

Synthesis, Bacteriostatic and Anticancer Activity of Novel Phenanthridines Structurally Similar to Benzo[c]phenanthridine Alkaloids [PDF]

open access: yesMolecules, 2018
In this study, we report the synthesis, antibacterial and anticancer evaluation of 38 novel phenanthridines that were designed as analogs of the benzo[c]phenanthridine alkaloids. The prepared phenanthridines differ from the benzo[c]phenanthridines in the
Pavel Lasák   +3 more
doaj   +6 more sources

Selective C‐7 Functionalization of Phenanthridines by Microwave‐Assisted Claisen Rearrangements of 8‐Allyloxyphenanthridines [PDF]

open access: yesChemistryOpen, 2023
Carbon‐carbon bond formation in the phenanthridine 7‐position was achieved by microwave‐assisted Claisen rearrangement of 8‐allyloxyphenanthridines. The reactions took place with excellent regioselectivity and high chemical yields.
Mathias Ryslett Lepsøe   +2 more
doaj   +2 more sources

Synthesis of Imidazo[1,2-f]phenanthridines by Recyclable Magnetic MOF-Catalyzed Coupling and Cyclization of 2-(2-Bromoaryl)imidazoles with Cyclohexane-1,3-diones Followed by Aromatization. [PDF]

open access: yesACS Omega, 2022
2-(2-Bromoaryl)imidazoles react with cyclohexane-1,3-diones in the presence of a catalytic amount of recyclable Fe3O4@SiO2@MOF-199 and a base to give the corresponding C–C coupled and cyclized products 6,7-dihydroimidazo[1,2-f]phenanthridin-8(5H)-ones in
Lee SW, Dao PDQ, Lim HJ, Cho CS.
europepmc   +2 more sources

Synthesis of phenanthridines via a novel photochemically-mediated cyclization and application to the synthesis of triphaeridine [PDF]

open access: yesBeilstein Journal of Organic Chemistry, 2021
Readily synthesized biphenyl-2-carbaldehyde O-acetyl oximes were exposed to UV radiation affording phenanthridines. The scope and limitations of this novel reaction were explored.
Songeziwe Ntsimango   +3 more
doaj   +2 more sources

Direct Photoexcitation of Benzothiazolines: Acyl Radical Generation and Application to Access Heterocycles [PDF]

open access: yesMolecules, 2021
An acyl radical generation and functionalization strategy through direct photoexcitation of benzothiazolines has been developed. The formed acyl radical species can either be trapped by quinoxalin-2-ones to realize their C(3)-H functionalization or ...
Xiang-Kui He   +4 more
doaj   +2 more sources

"Golden" Cascade Cyclization to Benzo[c]-Phenanthridines. [PDF]

open access: yesChemistry, 2021
Herein, we describe a gold‐catalyzed cascade cyclization of Boc‐protected benzylamines bearing two tethered alkyne moieties in a domino reaction initiated by a 6‐endo‐dig cyclization.
Hendrich CM   +10 more
europepmc   +2 more sources

Photocatalyzed syntheses of phenanthrenes and their aza-analogues. A review [PDF]

open access: yesBeilstein Journal of Organic Chemistry, 2020
Phenanthrenes and their aza-analogues have important applications in materials science and in medicine. Aim of this review is to collect recent reports describing their synthesis, which make use of radical cyclizations promoted by a visible light ...
Alessandra Del Tito   +4 more
doaj   +2 more sources

Palladium and radical routes to phenanthridines [PDF]

open access: yesARKIVOC, 2012
Two routes to phenanthridines are reported; a palladium-mediated route using imidoyl-selanides as precursors and a modified radical route using aryl imines as starting materials.
W. Russell Bowman   +2 more
doaj   +3 more sources

Synthesis of Some Phenanthridine Derivatives [PDF]

open access: bronzeCanadian Journal of Chemistry, 1951
not available
K. Wiesner, W. E. Edmiston
openaire   +3 more sources

Studies in the phenanthridine series. Part VIII. 3:8-diamino-phenanthridine and related substances

open access: hybridJournal and proceedings of the Royal Society of New South Wales, 1945
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
E Ritchie
openaire   +3 more sources

Home - About - Disclaimer - Privacy