5860-38-8Relevant academic research and scientific papers
Oxidation of aromatic compounds: VII oxidation of symmetrically substituted 1,3-diarylpropynones in the system CF3COOH-CH2Cl2-PbO2. New synthesis method of 1,1,2,2-tetraaroylethenes
Vasil'ev,Rudenko,Grinenko
, p. 1157 - 1162 (2007/10/03)
Preparative oxidation of 1,3-diarypropynones ArC≡CCOAr in a system CF3COOH-CH2Cl2-PbO2 at 18-20°C within 1.5-25 h results in 1,1,2,2-tetraaroylethenes (ArCO)2C= C(COAr)2 in yields up to 75%. The most easily and efficiently the products form from the substrates where the aryl moiety conjugated with the triple bond contains electron-donating substituents p-MeO, p-Me, and p-t-Bu. On heating with hydrazine 1,1,2,2-tetrakis(4-methoxyphenylcarbonyl)ethene is converted into heterocyclic structures: pyridazine and 2,3,6,7-tetraazanaphthalene derivatives.
Oxidative α coupling of carbonyl compounds via the condensation of acylated triazolinedione ylides with enolates: A facile synthesis of polyacylated olefins
Wilson, R. Marshall,Hengge, Alvan C.,Ataei, Ali,Ho, Douglas M.
, p. 7240 - 7249 (2007/10/02)
α-Urazolyl ketones are readily oxidized to acylated N-phenyltriazolinedione ylides with tert-butyl hypochlorite. These ylides, usually as generated in situ, undergo condensations with enolate species to form acylated olefins in synthetically useful yields
