Results 41 to 50 of about 2,340 (207)
Acridone studies. XIII. The nature of hexabromoacridone
, 1975 Acheson's ?hexabromoacridone?1 is shown to be 1,2,3,4,5,7-hexabromo-9- acridone by a combination of N.M.R. spectroscopy and synthesis from specifically tritiated 9-acridones. In boiling piperidine, the bromines at C 1 and C 3 are replaced.
RH Prager
core +1 more source
1-Hydroxy-3,4-dimethoxy-10-methylacridin-9-one
IUCrData, 2020 There are two independent molecules in the asymmetric unit of the title compound, C16H15NO4, which was isolated from fruits of Zanthoxylum leprieurii. The atoms of the three rings of each molecule are close to coplanar with the largest deviations from ...
Rodrigo S. A. de Araújo +5 more
doaj +1 more source
N‐Aryl Acridone Derivatives as Effective Catalysts for Energy Transfer Reactions
Chemistry – A European Journal, EarlyView.Acridones derivatives have high triplet energy, are simple accessible, and could be used in challenging [2+2] ENT reactions. ABSTRACT Organic photocatalysts capable of promoting high‐energy triplet energy transfer (EnT) remain limited, particularly for demanding [2+2] photocycloaddition reactions.
Francesco Calogero +8 more
wiley +1 more source
Molecules, 2021 A new coumarin-acridone fluorescent probe S was designed and synthesized, and the structure was confirmed with 1H/13C NMR spectrometry, single-crystal X-ray diffraction, and high-resolution mass spectrometry.
Jiayong Huang +7 more
doaj +1 more source
Chemistry – A European Journal, EarlyView.Quinolin‐4‐ones were converted to chloroquinolinium salts, allowing formation of axially chiral aminoquinolinium salts via an enantioretentive SNAr reaction with a variety of amine nucleophiles. The salts have a high rotational barrier, with a racemization half‐life of ∼1000s of years.
Darren Holmes +5 more
wiley +1 more source
Native acridone synthases I and II from Ruta graveolens L. form homodimers
, 1999 Acridone synthase II cDNA was cloned from irradiated cell suspension cultures of Ruta graveolens L. and expressed in Escherichia coli. The translated polypeptide of Mr 42 681 revealed a high degree of similarity to heterologous chalcone and stilbene ...
Springob, Karin +13 more
core +1 more source
Results in Chemistry, 2023 Applying the Ullmann synthesis, substituted aniline and o-halobenzoic acids are combined with potassium carbonate and copper powder to produce N- (substituted phenyl) anthranilic acids.
S. Sulthanudeen +3 more
doaj +1 more source
Experiments on the Synthesis of the Acridone Alkaloids
, 1951 A scheme for the biosynthesis of the acridone alkaloids is suggested and experimental evidence bearing on this question is described.
GK Hughes, E Ritchie
core +1 more source
Aza-aromatic polycycles based on triphenylene and acridine or acridone: synthesis and properties
, 2021 International audienceAcridine- and acridone-based polycyclic aromatics were prepared by using as the key steps a copper-catalysed N-arylation of 2-aminobenzaldehyde, 2-aminophenones, or ethyl 2-aminobenzoate with 2-iodotriphenylene, and an acid-mediated
Mongin, Florence +8 more
core +1 more source
Coupled Excited-State Dynamics in N-Substituted 2-Methoxy-9-Acridones
Frontiers in Chemistry, 2019 Fluorophores of the acridone family have been widely employed in many applications, such as DNA sequencing, the detection of biomolecules, and the monitoring of enzymatic systems, as well as being the bases of intracellular sensors and even antitumoral ...
M. Carmen Gonzalez-Garcia +9 more
doaj +1 more source