A quantitative study of substituent effects on oxidative cyclization of some 2-aryl-substituted aldehyde thiosemicarbazones induced by ferric chloride and cupric perchlorate
作者:Renato Noto、Paolo Lo Meo、Michelangelo Gruttadauria、Giuseppe Werber
DOI:10.1002/jhet.5570360315
日期:1999.5
As a development of our previous work, we performed a kinetic study of the oxidativecyclization reaction of some 2,4-diaryl-substituted aldehydethiosemicarbazones 1a-n induced by ferricchloride and by cupricperchlorate. The results of cyclization of 1a-n were compared to those of the corresponding 2-methyl derivatives. The kinetic data were analyzed by means of the Hammett's equation.