Journal ArticleDOI
Studies on antianaphylactic agents—III
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TLDR
By the application of the Vilsmeier-Haack reaction to various o-hydroxyacetophenone derivatives, 4-oxo-4H-1-benzopyran-3-carboxaldehydes were synthesized in one step as discussed by the authors.About:
This article is published in Tetrahedron.The article was published on 1974-01-01. It has received 175 citations till now. The article focuses on the topics: Fragmentation (mass spectrometry) & Mass spectrum.read more
Citations
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Chemical Reactivity of 4,9‐Dimethoxy‐5‐oxo‐5H‐furo[3,2‐g]chromene‐6‐Carboxaldehyde Toward Some Nucleophilic Reagents
TL;DR: In this paper, the chemical reactivity of carboxaldehyde with some primary amines and heterocyclic amines was studied toward a diversity of nitrogen nucleophilic reagents, including N4-phenylthiosemicarbazide, and S-benzyldithiocarbazate.
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Novel benzopyranopyridine derivatives of 2-amino-3-formylchromone
TL;DR: In this paper, a series of pyrazole derivatives was prepared by the reaction of 3-acetoacetyl benzopyranopyridones with different hydrazines, which were characterized on the basis of spectral data and their antibacterial activity evaluated.
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Synthesis, Spectroscopic Analysis and Assessment of the Biological Activity of New Hydrazine and Hydrazide Derivatives of 3-Formylchromone.
Krzysztof Słomiak,Andrzej Łazarenkow,Lilianna Chęcińska,Joachim Kusz,Justyn Ochocki,Jolanta Nawrot-Modranka +5 more
TL;DR: This preliminary study reports the synthesis, structural assessment, initial microbiological screening and biological testing of the synthesized compounds on cell lines using the XTT-assay, demonstrating antiproliferative and stimulation of proliferation against two cell lines.
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Spectroscopic and TD-DFT investigations of 4-{[(2-amino-6-methylchromon-3-yl) methylidene]amino}-6-methyl-3-thioxo-3,4-dihydro-1,2,4-triazin-5(2H)-one, and its application for photovoltaic devices
Shimaa Abdel Halim,Magdy A. Ibrahim,N. Roushdy,A.A.M. Farag,A.A.M. Farag,Yassin Gabr,Sara Said +6 more
TL;DR: In this paper, the fundamental absorption and dispersion parameters of the AMCMTT-based heterojunction were determined based on the single-oscillator model utilizing the well-known Wemple-DiDomenico relationship.
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New metal complexes derived from S-benzyldithiocarbazate (SBDTC) and chromone-3-carboxaldehyde: synthesis, characterization, antimicrobial, antitumor activity and DFT calculations
TL;DR: In this paper, a novel monobasic tridentate ONS donor ligand was synthesized from the condensation reaction of chromone-3-carboxaldehyde with S-benzyldithiocarbazate (SBDTC).
References
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Journal ArticleDOI
3‐Acylchromone. XV. Mitt. über Untersuchungen an γ‐Pyronen
Fritz Eiden,H. Haverland +1 more
TL;DR: In 2-Stellung unsubstituierte 3-Acyl-chromone wurden aus 2-Hydroxy-ω-acyl-acetophenonen durch Reaktion with Orthoameisensaure-triathylester und Acetanhydrid oder aus 1-hydroxy-α-formylacetophenon and Acetanehydrid/Natriumacetat dargestellt as mentioned in this paper.
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Synthetic analogs of cortical hormones. i. homogentisic acid and ,2,5-trihydroxyacetophenone derivatives from 2,5-diacetoxy--diazoacetophenone
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The reactions of 2,2‐difluoro‐4‐methylnaphtho[l,2‐e]‐1,3,2‐dioxaborin and its [2,1‐e]isomer with N,N‐dimethylformamide
TL;DR: In this paper, the title compounds react with dimethylformamide in acetic anhydride to give dimethylamino-vinyl derivatives which, on treatment with base, yield benzochroman-4-ones.
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Pharmacological actions of baicalin and baicalein
TL;DR: In this paper, Baicalin and Baicalein, components of the drug, were investigated on active anaphylactic reaction in guinea pig, and the results obtained were compared with those of rutin, methylhesperidin and quercetin.