75478-76-1Relevant academic research and scientific papers
Free-Radical Reactions of Diazonium Salts with α,β-Unsaturated Carbonyl Compounds. A New Synthesis of 1,4-Diarylpyrazole Derivatives
Citterio, Attilio,Ramperti, Massimo,Vismara, Elena
, p. 763 - 766 (2007/10/02)
Free-radical decomposition of diazonium salts catalyzed by titanous and ferrous salts in the presence of β-substituted α,β-unsaturated carbonyl compounds leads to 1,4-diarylpyrazole derivatives.The reaction occurs via an intermediate azo compound (1), whi
STERIC AND POLAR EFFECTS IN FREE-RADICAL REACTIONS. - AN UNUSUAL TYPE OF AZOCOUPLING BY FREE RADICAL DECOMPOSITION OF DIAZONIUM SALTS
Citterio, Attilio,Minisci, Francesco,Albinati, Alberto,Bruckner, Sergio
, p. 2909 - 2910 (2007/10/02)
A new free-radical azocoupling has been accomplished by decomposition of diazonium salts with monoelectronic reducing agents in the presence of 4-methyl-3-penten-2-one.Steric and polar factors are responsible of the unusual behaviour.
