Results 191 to 200 of about 5,776 (241)

Phenanthridine Sulfonamide Derivatives as Potential DPP-IV Inhibitors: Design, Synthesis and Biological Evaluation.

Current Computer - Aided Drug Design, 2020
BACKGROUND Diabetes mellitus is a chronic metabolic disorder, characterized by hyperglycemia over a prolonged period, disturbance of fat, protein and carbohydrate metabolism, resulting from defective insulin secretion, insulin action or both.
R. A. Khalaf, Shorooq Alqazaqi, Maram Aburezeq, D. Sabbah, G. Albadawi, G. Sheikha   +5 more
semanticscholar   +1 more source

A Series of Imidazo[1,2‐f]phenanthridine‐Based Sky‐Blue TADF Emitters Realizing EQE of over 20%

Advanced Optical Materials, 2019
Although imidazole derivatives are promising as blue fluorescent emitters in organic light‐emitting devices (OLEDs), the corresponding blue thermally activated delayed fluorescence (TADF) emitter is rarely explored. In this study, a series of imidazo[1,2‐
Tatsuya Ohsawa, Hisahiro Sasabe, Taiki Watanabe, Kohei Nakao, Ryutaro Komatsu, Y. Hayashi, Yuya Hayasaka, J. Kido   +7 more
semanticscholar   +1 more source

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
openaire   +3 more sources

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
openaire   +1 more source

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
openaire   +1 more source

Metal-free, visible-light-promoted oxidative radical cyclization of N-biarylglycine esters: one-pot construction of phenanthridine-6-carboxylates in water

Green Chemistry, 2019
A metal-free, visible-light (blue LED: hν = 425 ± 15 nm) photoredox-catalyzed intramolecular cyclization reaction of N-biarylglycine esters to phenanthridine-6-carboxylates in water under an open air atmosphere at ambient conditions has been developed.
P. Natarajan, Deachen Chuskit, Priya Priya   +2 more
semanticscholar   +1 more source

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.
openaire   +1 more source

Halogen-Bond-Controlled Self-Assembly of Regioisomeric Phenanthridine Derivatives into Nanowires and Nanosheets

, 2020
The spectroscopic and photophysical properties of organic materials in the films are widely influenced by their molecular packing morphologies and intermolecular interactions.
Peng Pang, Xinrui Miao, Lei Ying, G. Kong, Chunshan Che, W. Deng   +5 more
semanticscholar   +1 more source

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
openaire   +2 more sources

Metal-free 2-isocyanobiaryl-based cyclization reactions: phenanthridine framework synthesis

Molecular diversity, 2023
Fatemeh Doraghi, A. Amini, Mehdi Ghanbarlou, B. Larijani, Mohammad Mahdavi   +4 more
semanticscholar   +1 more source