LiCO4/Et3N: Highly efficient and active catalyst for selective Michael addition of active methylene compounds under solvent-free condition

2008 ◽  
Vol 292 (1-2) ◽  
pp. 44-48 ◽  
Author(s):  
Mohammad R. Saidi ◽  
Najmedin Azizi ◽  
Elham Akbari ◽  
Forogh Ebrahimi
Keyword(s):  
Michael Addition ◽  
Active Catalyst ◽  
Solvent Free ◽  
Free Condition ◽  
Highly Efficient ◽  
Solvent Free Condition ◽  
Active Methylene Compounds ◽  
Active Methylene

A highly efficient, operationally simple and selective thia-Michael addition under solvent-free condition

2009 ◽  
Vol 2 (1) ◽  
pp. 43-46 ◽  
Author(s):  
Najmodin Azizi ◽  
Alireza Khajeh-Amiri ◽  
Hossein Ghafuri ◽  
Mohammad Bolourtchian
Keyword(s):  
Michael Addition ◽  
Solvent Free ◽  
Free Condition ◽  
Highly Efficient ◽  
Solvent Free Condition

scholarly journals Highly Efficient Acetalization and Ketalization Catalyzed by Cobaloxime under Solvent-Free Condition

Catalysts ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. 48 ◽  
Author(s):  
Yang Zong ◽  
Liting Yang ◽  
Shanyu Tang ◽  
Longjia Li ◽  
Wanjie Wang ◽  
...  
Keyword(s):  
Solvent Free ◽  
Free Condition ◽  
Highly Efficient ◽  
Solvent Free Condition

Sulfated polyborate: a new and eco-friendly catalyst for one-pot multi-component synthesis of 3,4-dihydropyrimidin-2(1H)-ones/thiones via Biginelli reaction

2016 ◽  
Vol 40 (12) ◽  
pp. 10412-10417 ◽  
Author(s):  
Chetan K. Khatri ◽  
Deelip S. Rekunge ◽  
Ganesh U. Chaturbhuj
Keyword(s):  
Biginelli Reaction ◽  
Solvent Free ◽  
Synthetic Methodology ◽  
One Pot ◽  
Free Condition ◽  
Sulfated Polyborate ◽  
Highly Efficient ◽  
Excellent Yield ◽  
Solvent Free Condition

A highly efficient and improved synthetic methodology for the preparation of 3,4-dihydropyrimidin-2(1H)-one derivatives in good to excellent yield via Biginelli reaction of β-ketoesters/β-diketone, urea/thiourea and various aldehydes using new, efficient and recyclable sulfated polyborate catalyst under the solvent-free condition is reported.

Et3N- Promoted Cascade Sp3C-H Bond Functionalization of Methyl Arene with Active Methylene CompoundsUnder Solvent-Free Condition

2019 ◽  
Vol 4 (7) ◽  
pp. 2225-2228 ◽  
Author(s):  
Dhirendra Kumar ◽  
Savita Kumari ◽  
Somaiah Gajaganti ◽  
Vandana Srivastava ◽  
Sundaram Singh
Keyword(s):  
Solvent Free ◽  
Bond Functionalization ◽  
Free Condition ◽  
Solvent Free Condition ◽  
Active Methylene

scholarly journals L-Tyrosine as an Eco-Friendly and Efficient Catalyst for Knoevenagel Condensation of Arylaldehydes with Meldrum’s Acid in Solvent-Free Condition under Grindstone Method

2012 ◽  
Vol 2012 ◽  
pp. 1-4 ◽  
Author(s):  
G. Thirupathi ◽  
M. Venkatanarayana ◽  
P. K. Dubey ◽  
Y. Bharathi Kumari
Keyword(s):  
Room Temperature ◽  
Knoevenagel Condensation ◽  
Solvent Free ◽  
Meldrum's Acid ◽  
Meldrum’S Acid ◽  
Efficient Catalyst ◽  
Free Condition ◽  
Solvent Free Condition ◽  
Active Methylene ◽  
Methylene Group

We investigate L-Tyrosine as an efficient catalyst for the Knoevenagel condensation of arylaldehydes with meldrum’s acid containing cyclic active methylene group in solvent-free condition under grindstone method at room temperature to produce substituted-5-benzylidene-2,2-dimethyl-[1,3]dioxane-4,6-diones 3(a–j).

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