1009442-28-7Relevant articles and documents
Synthesis of 4-aryl-3(5)-(2-hydroxyphenyl)pyrazoles by reaction of isoflavones and their 4-thio analogues with hydrazine derivatives
Levai, Albert,Silva, Artur M. S.,Cavaleiro, Jose A. S.,Elguero, Jose,Alkorta, Ibon,Jeko, Jozsef
, p. 905 - 914 (2007)
4-Aryl-3(5)-2-(hydroxyphenyl)pyrazoles have been prepared by the reaction of isoflavones and their 4-thio analogues with hydrazine hydrate and phenylhydrazine in hot pyridine. The reaction mechanism for the formation of these pyrazoles is discussed. All t