Microwave Assisted Synthesis of Fungicidal Compounds (III) Using Knoevenagel Condensation in Dry Media.

ChemInform ◽  
2003 ◽  
Vol 34 (10) ◽  
Author(s):  
Mazaahir Kidwai ◽  
Pooja Sapra ◽  
Kumar Ranjan Bhushan
Keyword(s):  
Knoevenagel Condensation ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted

scholarly journals Microwave Assisted Synthesis of Indole Substituted Alkenes Using Knoevenagel Condensation Reaction and their Antibacterial Activity Study

2010 ◽  
Vol 7 (s1) ◽  
pp. S543-S551 ◽  
Author(s):  
Shubha Jain ◽  
B. Nagi Reddy ◽  
K. Sambasiva Rao ◽  
G. Neeliah
Keyword(s):  
Antibacterial Activity ◽  
Reaction Rate ◽  
Knoevenagel Condensation ◽  
Condensation Reaction ◽  
Microwave Oven ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted ◽  
Knoevenagel Condensation Reaction ◽  
New Compounds ◽  
Active Methylene

The reaction rate of Knoevenagel condensation can be dramatically enhanced by irradiating the reaction mixture containing an aldehyde, active methylene compound,L-proline and chlorobenzene with a commercial microwave oven. Twenty Knoevenagel condensation products were synthesized within 5-17 min in good yields. The new compounds were also screened for their antibacterial activity.

Microwave-Assisted Synthesis of 2-(2-Nitroethenly)thiophene from 2-Thiophenecarboxaldehyde and Nitromethane

2012 ◽  
Vol 268-270 ◽  
pp. 500-503
Author(s):  
Jun De Xing ◽  
Zhi Liu ◽  
Zhao Yu Zhang ◽  
Xiao Fei Jia
Keyword(s):  
Energy Source ◽  
Reaction Time ◽  
Microwave Irradiation ◽  
Knoevenagel Condensation ◽  
Microwave Assisted Synthesis ◽  
Beta Alanine ◽  
Microwave Assisted ◽  
Reaction Condition ◽  
Efficient Access

2-(2-Nitroethenly)thiophene can be obtained from 2-thiophenecarboxaldehyde and nitromethane under Knoevenagel condensation conditions. We used beta-alanine as a catalyst and microwave irradiation as the energy source. Different reaction condition, such as beta-alanine consumption and reaction time were studied. The results indicate that the application of microwave irradiation increases the yield of desired compound. beta-Alanine-catalyzed activation of 2-thiophenecarboxaldehyde provides an efficient access to 2-(2-nitroethenly)thiophene with reusability of the catalyst.

An Efficient and Green Microwave-Assisted Synthesis of Quinoline DerivativesviaKnoevengal Condensation

2020 ◽  
Vol 17 (2) ◽  
pp. 157-163 ◽  
Author(s):  
Syed Tasqeeruddin ◽  
Yahya Asiri ◽  
Jaber Abdullah Alsherhri
Keyword(s):  
Green Synthesis ◽  
Knoevenagel Condensation ◽  
Microwave Assisted Synthesis ◽  
Quinoline Derivatives ◽  
Efficient Catalyst ◽  
Microwave Assisted ◽  
Active Methylene Compounds ◽  
Active Methylene ◽  
Quinolone Derivatives

:We have developed an efficient and green synthesis of quinoline derivatives using L-proline under Knoevenagel condensation. L-proline was found to be an efficient catalyst for the Knoevenagel condensation of substituted 2-aminoaryl ketones 1 with the active methylene compounds 2, affording quinolone derivatives 3. The reaction has been done under conventional as well as under microwave conditions. The latter procedure has been found to be much more efficient in terms of time and yield.

Microwave Assisted Synthesis of Cationic Amino Sugar Surfactants

2020 ◽  
Vol 57 (3) ◽  
pp. 265-272
Author(s):  
Priya S. Singh ◽  
Aizaz Shaikh ◽  
Aditi Deshmukh ◽  
Amit P. Pratap
Keyword(s):  
Amino Sugar ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted
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