Syntheses of 2-hydroxypyrano[3,2-c]quinolin-5-ones from 4-hydroxyquinolin-2-ones by tandem Knoevenagel condensation with aldehyde and Michael addition of enamine with the quinone methide—thermo- and photochemical approaches

1999 ◽  
pp. 2017-2024 ◽  
Author(s):  
Jia-Hai Ye ◽  
Ke-Qing Ling ◽  
Yan Zhang ◽  
Ning Li ◽  
Jian-Hua Xu
Keyword(s):  
Michael Addition ◽  
Knoevenagel Condensation ◽  
Quinone Methide

Nmp-based ionic liquids: Recyclable catalysts for both hetero-Michael addition and Knoevenagel condensation in water

2018 ◽  
Vol 48 (9) ◽  
pp. 1060-1067 ◽  
Author(s):  
Pengkun Yang ◽  
Yawei Liu ◽  
Ling Chai ◽  
Zhenzhen Lai ◽  
Xiaomin Fang ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Michael Addition ◽  
Knoevenagel Condensation ◽  
Recyclable Catalysts

Water-prompted synthesis of alkyl nitrile derivatives via Knoevenagel condensation and Michael addition reaction

2011 ◽  
Vol 13 (3) ◽  
pp. 566 ◽  
Author(s):  
Ebrahim Soleimani ◽  
Mohammad Mehdi Khodaei ◽  
Nasim Batooie ◽  
Mostafa Baghbanzadeh
Keyword(s):  
Michael Addition ◽  
Addition Reaction ◽  
Knoevenagel Condensation ◽  
Michael Addition Reaction

scholarly journals Ball milling for the quantitative and specific solvent-free Knoevenagel condensation + Michael addition cascade in the synthesis of various 2-amino-4-aryl-3-cyano-4H-chromenes without heating

RSC Advances ◽  
2014 ◽  
Vol 4 (89) ◽  
pp. 48191-48201 ◽  
Author(s):  
Omid Hosseinchi Qareaghaj ◽  
Sara Mashkouri ◽  
M. Reza Naimi-Jamal ◽  
Gerd Kaupp
Keyword(s):  
Ball Milling ◽  
Michael Addition ◽  
Knoevenagel Condensation ◽  
Solvent Free

Various 2-amino-4-aryl-3-cyano-4H-chromenes have been quantitatively prepared by dry ball milling in the presence of catalytic Na2CO3. The orientation specificities are discussed; existing misattributions are pointed out and clarified by NMR.

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