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
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Synthesis of and HIV-1 Integrase Inhibition by 2-[7-(Fluorobenzyloxy)-4-Oxo-4 h chromen-3-Yl]-1-Hydroxyimidazoles
TL;DR: It was shown that these compounds did not exhibit noticeable inhibition of HIV-1 integrase catalytic activity, and Prototropic tautomerism of the obtained 1-hydroxyimidazoles was discussed.
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Advances of chromone-based reactants in the ring opening and skeletal reconstruction reaction: access to skeletally-diverse salicyloylbenzene/heterocycle derivatives
TL;DR: Salicyloylbenzene/heterocycles are privileged scaffolds found in many natural products and bioactive molecules and numerous useful approaches for the preparation have been developed in recent years.
Reference EntryDOI
Fundamentals of Organic Chemistry as Applicable to the Biotransformation of Foreign Compounds
TL;DR: Using basic principles of organic chemistry, the mechanistic basis for several nonintuitive xenobiotic and drug biotransformation reactions that occur in nature are explored.
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Design, Synthesis, and Antiproliferative Activity of Benzopyran-4-One-Isoxazole Hybrid Compounds
TL;DR: In this article , the authors used benzopyran-4-one-isoxazole hybrid compounds, particularly 5a-d, to investigate their antiproliferative activity against a panel of six cancer cell lines and two normal cell lines.
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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.