134038-97-4Relevant academic research and scientific papers
Oxidation of Aromatic Compounds. VI. Oxidation of Unsymmetrical Diarylacetylenes in the CF3COOH-CH2Cl2-PbO2 System
Vasil'ev,Rudenko
, p. 1555 - 1584 (2007/10/03)
Oxidation of unsymmetrical diarylacetylenes ArC≡CAr′ in the CF3COOH-CH2Cl2-PbO2 system at 0-2°C in 1-3 h yields either pure 1,2,3,4-tetraaryl-2-butene-1,4-diones or mixtures of three isomeric γ-di-ketones Ar(Ar′CO)C=C(COAr′)Ar, Ar′(ArCO)C=C(COAr)Ar′, and Ar′(ArCO)C=C(COAr′)Ar which are predominantly Z isomers. The effect of electronic properties of the substituents in diarylacetylenes on the regio- and stereoselectivity of the reaction is discussed.
ANODIC OXIDATION OF DIARYLACETYLENES AND DIARYLDIACETYLENES: ELECTROSYNTHESIS OF DIAROYL-STILBENES AND ACETYLENIC α- AND γ-DIKETONES
Cariou, Michel
, p. 799 - 808 (2007/10/02)
Diarylacetylenes and diaryldiacetylenes have been electrooxidized in acetonitrile through the use of a graphite plate anode, thus overcoming a very high passivation.Diarylacetylenes led mainly to 1,2-diaroyl-1,2-diaryl-ethylenes.Anodic oxidation of conjugated diaryldiacetylenes, at the same anode, led to a mixture of acetylenic α- and γ-diketones.This represents the very first synthesis of acetylenic α-diketones Ar-CO-CO-CC-Ar.
