A Simple and Efficient Diversity-Oriented Synthesis of New Substituted 3-(Arylamino)-6,7-dihydro-1H-indazol-4(5H)-ones by a KOH-Assisted One-Pot Reaction
作者:Mehdi Rimaz、Behzad Khalili、Golaleh Khatyal、Hossein Mousavi、Farkhondeh Aali
DOI:10.1071/ch17146
日期:——
A novel, simple, and straightforward combinatorial method for the synthesis of new substituted 3-(arylamino)-6,7-dihydro-1H-indazol-4(5H)-one derivatives has been developed. The synthesis was achieved via a one-pot three-component reaction of aromatic isothiocyanates, substituted 1,3-cyclohexanediones, and hydrazine hydrate in dimethyl sulfoxide as a polar aprotic solvent. This methodology has the
一种新颖的,简单的,并为新的取代的3-(芳基氨基)合成直接的组合方法-6,7-二氢-1- ħ -吲唑-4(5 ħ) -酮衍生物已被开发出来。通过芳族异硫氰酸酯,取代的1,3-环己二酮和水合肼在作为极性非质子溶剂的二甲亚砜中进行一锅三组分反应来完成合成。该方法的优点是反应条件温和,收率高至优异,原料易得,操作简单且易于后处理。该化学方法为3-芳基氨基吲唑骨架的多样性导向构建提供了有效的合成策略。