scholarly journals A Novel Tandem Reaction of Chalcone with Malononitrile or Ethylcyanoacetate Promoted by Samarium (III) Iodide and Followed by Samarium (II) Iodide

2002 ◽  
Vol 2002 (6) ◽  
pp. 288-290 ◽  
Author(s):  
Yongmin Ma ◽  
Yongmin Zhang
Keyword(s):  
Tandem Reaction ◽  
Coupling Reactions ◽  
Michael Additions ◽  
Active Methylene Compounds ◽  
Active Methylene

Michael additions of active methylene compounds (for example: malononitrile, ethylcyanoacetate) to chalcones promoted by SmI3 gave 1,4-adducts which, after intramolecular coupling reactions induced by SmI2, furnished fine yields of cyclic products.

scholarly journals Photoinduced three-component coupling reactions of electron deficient alkenes, dienes and active methylene compounds

2018 ◽  
Vol 17 (8) ◽  
pp. 1118-1126 ◽  
Author(s):  
Hajime Maeda ◽  
Hiroshi Takayama ◽  
Masahito Segi
Keyword(s):  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
Coupling Reactions ◽  
Active Methylene Compounds ◽  
Active Methylene ◽  
Three Component Coupling

In this effort, we developed novel three component coupling reactions of electron deficient alkenes, dienes and active methylene compounds via photoinduced electron transfer.

On-water magnetic NiFe2O4 nanoparticle-catalyzed Michael additions of active methylene compounds, aromatic/aliphatic amines, alcohols and thiols to conjugated alkenes

RSC Advances ◽  
2016 ◽  
Vol 6 (98) ◽  
pp. 95951-95956 ◽  
Author(s):  
Soumen Payra ◽  
Arijit Saha ◽  
Subhash Banerjee
Keyword(s):  
Michael Addition ◽  
Aliphatic Amines ◽  
Reusable Catalyst ◽  
Michael Additions ◽  
Active Methylene Compounds ◽  
Active Methylene

Here, we have demonstrated Michael addition of active methylene compounds, aromatic/aliphatic amines, thiols and alcohols to conjugated alkenes using magnetic nano-NiFe2O4 as reusable catalyst in water.

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