55846-67-8Relevant academic research and scientific papers
Synthesis method of multi-ring double-substituted 1,3 -propanedione compound (by machine translation)
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Paragraph 0029-0034; 0099-0111, (2020/07/02)
The synthesis method comprises the following steps: under the protection of an inert gas, reacting the compound represented by the formula II with the compound of formula III under 1,3 - 1,3 - under the protection of inert gas to obtain the compound shown
NOVEL ORGANIC COMPOUND AND MATERIALS FOR ORGANIC ELECTROLUMINESCENT DEVICES COMPRISING THE SAME AND ORGANIC ELECTROLUMINESCENT DEVICES COMPRISING THE SAME
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Paragraph 0099; 0135-0138, (2020/12/16)
The present invention provides a novel organic compound represented by chemical formula 1, a material for an organic electroluminescent device including the organic compound, and an organic electroluminescent device. The present invention can improve color purity and device life.
Use of β-Ketocarboxylic Acids for Syntheses of 6-Substituted 4-Hydroxy-2-pyrones and Acyclic β-Diketones
Ohta, Shunsaku,Tsujimura, Atsuhiko,Okamoto, Masao
, p. 2762 - 2768 (2007/10/02)
β-Ketocarboxylic acids including β-ketoglutaric acid half-esters were cyclized by treating them with 1,1'-carbonyl-diimidazole to give 6-substituted 3-acyl-4-hydroxy-2-pyrones in good yields. 5-Aryl-3,5-dioxo-1-pentanoic acid and monomethyl malonate gave 6-aryl-4-hydroxy-2-pyrone and dimethyl β-ketoglutarate, respectively, on similar treatment.Anibin, one of the Aniba alkaloids, was synthesized from 5-(3-pyridyl)-4-hydroxy-2-pyrone.In addition, it was confirmed that reaction of magnesium β-ketocarboxylate with acylimidazolide gave the corresponding acyclic β-diketone in excellent yield.Keywords - β-ketocarboxilic acid; biogenetic-type synthesis; 4-hydroxy-2-pyrone; β-polyketide; β-ketoglutaric acid; dehydroacetic acid; anibin; Aniba alkaloid; 3-acyl-4-hydroxy-2-pyrone; β-diketone.
Preparation of antioxidants
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, (2008/06/13)
This invention comprises an alkylation, reduction and transesterification process for the preparation of ester substituted phenols. The products are useful as antioxidants and may be prepared in high yields and with a high degree of purity.
3,5-Cycloalkyl pyrazolium salts as fungicides
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, (2008/06/13)
There is provided a method for the control of plant pathogenic fungi with certain 3(5) or 3,5-cycloalkyl pyrazolium salts and to a method of protecting plants from fungal attack by applying to the foliage of said plants said pyrazolium salt in fungicidall
