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
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.
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