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, aromaticaldehydes, 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
Sulfuric acid functionalized MCM-41 coated on magnetite nanoparticles as a recyclable core–shell solid acid catalyst for three-component condensation of indoles, aldehydes and thiols
作者:Alireza Khorshidi、Shahab Shariati
DOI:10.1039/c4ra05550k
日期:——
Sulfuric acid functionalized MCM-41 coated on magnetite nanoparticles as a recyclable core–shell catalyst in preparation of 3-[(aryl)(arylthio)methyl]-1H-indoles.
Zirconium oxy dichloride octahydrate: a green Lewis acid catalyst for the synthesis of novel 3-[(alkyl/arylthio)(aryl)methyl]-1H-indoles
作者:Kobra Nikoofar、Samareh Gorji
DOI:10.1007/s11164-016-2521-z
日期:2016.9
Some novel 3-[(alkyl/arylthio)(aryl)methyl]-1H-indoles ( 4a – h ) are prepared via a one-pot, three-component, and domino reaction of indoles, aromatic aldehydes, and various (hetero) aromatic thiols in the presence of zirconium oxy dichloride octahydrate as an efficient green Lewis acid catalyst. Mild reaction conditions, simple reaction procedure, good yields of products, inexpensive and eco-friendly
通过吲哚,芳族醛和各种(杂)的一锅,三组分和多米诺反应制备了一些新型的3-[(烷基/芳硫基)(芳基)甲基] -1H-吲哚( 4a – h )。二氯氧化锆八水合物的存在下,芳族硫醇是一种有效的绿色路易斯酸催化剂。温和的反应条件,简单的反应程序,良好的产物收率,廉价且环保的催化剂使用,缺乏副产物的形成(例如由芳族醛制得的二硫缩醛以及双(吲哚基)甲烷)是该方法的重点。提出的协议。