Hydrated ferric sulfate catalyzed synthesis of 3-[(alkyl/arylthio)(aryl)methyl]-1H-indole derivatives through one-pot reaction
作者:Ajaz A. Dar、Shahzad Ali、Abu T. Khan
DOI:10.1016/j.tetlet.2013.11.056
日期:2014.1
three-component reaction from indoles, aromatic aldehydes, and thiols at room temperature using hydrated ferric sulfate as a Lewis acid catalyst. The key features of the present protocol are mild and simple reaction procedure, moderate to good yields, requirement of inexpensive and reusable catalyst, no formation of dithioacetals derivatives from the corresponding aldehydes as well as bis-(indolyl) methane derivatives
各种各样的3 - [(烷基/芳基硫基)(芳基)甲基] -1- ħ -吲哚衍生物(4A - Ž)通过从吲哚,芳香醛和硫醇在室温下为单罐三组分反应,合成使用水合硫酸铁作为路易斯酸催化剂。本方案的关键特征是温和且简单的反应过程,中等至良好的收率,需要廉价且可重复使用的催化剂,没有从相应的醛以及双-(吲哚基)甲烷衍生物形成二硫缩醛衍生物。