Selective C‐7 Functionalization of Phenanthridines by Microwave‐Assisted Claisen Rearrangements of 8‐Allyloxyphenanthridines [PDF]
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 phenanthridines via a novel photochemically-mediated cyclization and application to the synthesis of triphaeridine [PDF]
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]
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
Pentacyclic aromatic heterocycles from Pd-catalyzed annulation of 1,5-diaryl-1,2,3-triazoles [PDF]
A series of pentacyclic aromatic heterocycles representing functionalized phenanthridines, naphthyridines, and phenanthrolines were prepared via Pd-catalyzed annulation of 1,5-diaryl-1,2,3-triazoles.
Kaylen D. Lathrum +3 more
doaj +2 more sources
Synthesis, Bacteriostatic and Anticancer Activity of Novel Phenanthridines Structurally Similar to Benzo[c]phenanthridine Alkaloids [PDF]
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 +4 more sources
Photocatalyzed syntheses of phenanthrenes and their aza-analogues. A review [PDF]
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
Microwave assisted synthesis of phenanthridine derivatives via Suzuki coupling and condensation
One-pot synthesis of phenanthridine derivatives using appropriately substituted aromatic ortho-bromo N-tosylhydrazones and 2′-aminobenzeneboronic acid pinacol esters is described.
Satheesh Kumar Dende +3 more
doaj +1 more source
Developing an efficient catalytic system using molecular oxygen as the oxidant for rhodium-catalyzed cross-dehydrogenative coupling remains highly desirable.
Weihui Zhuang +3 more
doaj +1 more source
von H.
Pictet, Amé, Ankersmit, H. Jan
openaire +3 more sources
Isometamidium chloride and homidium chloride fail to cure mice infected with Ethiopian Trypanosoma evansi type A and B. [PDF]
BACKGROUND:Trypanosoma evansi is mechanically transmitted by biting flies and affects camels, equines, and other domestic and wild animals in which it causes a disease called surra.
Gebrekrustos Mekonnen +7 more
doaj +1 more source

