scholarly journals Ionic Liquid as Catalyst and Reaction Medium. The Dramatic Influence of a Task-Specific Ionic Liquid, [bmIm]OH, in Michael Addition of Active Methylene Compounds to Conjugated Ketones, Carboxylic Esters, and Nitriles.

ChemInform ◽  
2005 ◽  
Vol 36 (44) ◽  
Author(s):  
Brindaban C. Ranu ◽  
Subhash Banerjee
Keyword(s):  
Ionic Liquid ◽  
Michael Addition ◽  
Reaction Medium ◽  
Active Methylene Compounds ◽  
Carboxylic Esters ◽  
Active Methylene ◽  
Task Specific Ionic Liquid

Ionic-liquid-supported 1,5,7-triazabicyclo[4.4.0]dec-5-ene — An efficient and recyclable organocatalyst for Michael addition to α,β-unsaturated ketones

2012 ◽  
Vol 90 (3) ◽  
pp. 290-297 ◽  
Author(s):  
Manoj Kumar Muthyala ◽  
Bhupender S Chhikara ◽  
Keykavous Parang ◽  
Anil Kumar
Keyword(s):  
Ionic Liquid ◽  
Michael Addition ◽  
Room Temperature ◽  
Significant Loss ◽  
Unsaturated Ketones ◽  
Ability To Act ◽  
Solvent Free Conditions ◽  
Active Methylene Compounds ◽  
Active Methylene ◽  
The Michael Addition

A novel ionic-liquid-supported 1,5,7-triazabicyclo[4.4.0]dec-5-ene (IL–TBD) was synthesized and investigated for its ability to act as an active organocatalyst in the Michael addition of active methylene compounds and thiophenols to chalcones under solvent-free conditions. The IL–TBD afforded Michael addition products in excellent yields (82%–94%) at room temperature, and it was simply recycled and reused at least five times without significant loss of catalytic activity.

Potassium phosphate–ionic liquid mediated selective mono-Michael addition

2015 ◽  
Vol 39 (9) ◽  
pp. 6726-6729 ◽  
Author(s):  
Anand D. Sawant ◽  
Suryabala D. Jagadale ◽  
Uday V. Desai ◽  
Manikrao M. Salunkhe
Keyword(s):  
Ionic Liquid ◽  
Michael Addition ◽  
Room Temperature ◽  
Potassium Phosphate ◽  
Nmr Analysis ◽  
Active Methylene Compounds ◽  
Dosy Nmr ◽  
Active Methylene

A process for exclusive mono-Michael addition of active methylene compounds to conjugated esters, nitriles and ketones is developed. An ionic liquid-mediated reaction is carried out at room temperature. A reaction carried out at 60 °C resulted in a double-addition. A mechanism is proposed and supported by P31 and DOSY NMR analysis.

A Mild, Efficient, and Green Procedure for Michael Addition of Active Methylene Compounds to Chalcones Under Microwave Irradiation

2005 ◽  
Vol 35 (2) ◽  
pp. 325-332 ◽  
Author(s):  
Satya Paul ◽  
Monika Gupta ◽  
Parvinder Pal Singh ◽  
Rajive Gupta ◽  
André Loupy
Keyword(s):  
Microwave Irradiation ◽  
Michael Addition ◽  
Active Methylene Compounds ◽  
Green Procedure ◽  
Active Methylene
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