A quantitative study of substituent effects on oxidative cyclization of some 2-methylsubstituted aldehydes. Thiosemicarbazones induced by ferric chloride
作者:Renato Noto、Paolo Lo Meo、Michelangelo Gruttadauria、Giuseppe Werber
DOI:10.1002/jhet.5570330353
日期:1996.5
information about the cyclization of thiosemicarbazones and thiosemicarbazone-type substrates induced by metallic salts as oxidizing agents, we performed the synthesis of substrates 1a-s and a kinetic study of the oxidative cyclization of 1 to 5-imino-Δ2-1,3,4-thiadiazole 2 and 1,2,4-triazoline-5-thione 3 derivatives induced by methanolic ferric chloride solutions. The results of cyclization were compared
为了获得有关由金属盐作为氧化剂诱导的硫代半脲酮和硫代半脲酮类底物环化的进一步的机械信息,我们进行了底物1a-s的合成以及1至5-亚氨基-Δ的氧化环化的动力学研究。甲醇氯化铁溶液诱导的2 -1,3,4-噻二唑2和1,2,4-三唑啉-5-硫酮3衍生物。将环化的结果与相应的半咔唑的结果进行比较。通过哈米特方程对动力学数据进行了分析,并讨论了ρ值。