Journal ArticleDOI
Studies on antianaphylactic agents—III
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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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Synthesis, antimicrobial activity and bleaching effect of some reaction products of 4-oxo-4H-benzopyran-3-carboxaldehydes with aminobenzothiazoles and hydrazides
TL;DR: The hereditary bleaching effect on the plastid system of Euglena gracilis, a unique phenomenon of the biological activity of chromone derivatives, is reported and is used for detecting extranuclear mutations.
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Chemistry of 4-Oxo-4H-[1]benzopyran-3-carboxaldehyde
TL;DR: The authors present an examen approfondi de la synthese, des proprietes et des reactions de l'oxo-4 chromenecarbaldehyde-3 and l'utilisation de ses condensats for the preparation of divers systemes chimiques.
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Corrosion inhibition performance of chromone-3-acrylic acid derivatives for low alloy steel with theoretical modeling and experimental aspects
Rajeev Kumar,Savita Chahal,Suresh Kumar,Suman Lata,Hassane Lgaz,Hassane Lgaz,Rachid Salghi,Shehdeh Jodeh +7 more
TL;DR: In this paper, 6-hydroxy chromone-3-acrylic acid (6-OH-CA) and 7-methoxy chromone 3-acric acid (7-Me-CA), were synthesized and studied for inhibition of Low Alloy Steel corrosion in 1-M H2SO4 at different concentration and temperature using Gravimetric, Polarization technique, EIS, AFM, DFT and MD calculations.
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.