ChemInform Abstract: Novel Pathway to 1-Aminopyrroles and Other Nitrogen Heterocycles from Glyoxal Monohydrazones and Acylated Active Methylene Compounds in Solvent-Free Reactions under Microwave Irradiation.

ChemInform ◽  
2010 ◽  
Vol 29 (43) ◽  
pp. no-no
Author(s):  
S. JOLIVET-FOUCHET ◽  
J. HAMELIN ◽  
F. TEXIER-BOULLET ◽  
L. TOUPET ◽  
P. JACQUAULT
Keyword(s):  
Microwave Irradiation ◽  
Nitrogen Heterocycles ◽  
Solvent Free ◽  
Active Methylene Compounds ◽  
Active Methylene

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

Microwave synthesis of new biologically important 1,4-dihydropyridines containing benzothiazole moiety

2010 ◽  
Vol 75 (3) ◽  
pp. 275-287 ◽  
Author(s):  
Mithlesh ◽  
Pawan K. Pareek ◽  
Hemraj Chippa ◽  
Ravikant ◽  
Krishan G. Ojha
Keyword(s):  
Microwave Irradiation ◽  
Aromatic Aldehyde ◽  
Microwave Synthesis ◽  
Solid Support ◽  
Solvent Free ◽  
Microwave Irradiation Method ◽  
Antifungal Activities ◽  
Antibacterial And Antifungal Activities ◽  
Antibacterial And Antifungal ◽  
Active Methylene

2,3,5,6-Tetrasubstituted-4-aryl-1-(6-ethoxybenzothiazol-2-yl)-1,4-dihydropyridines were synthesized by the reaction of 2-amino-6-ethoxybenzothiazole, an aromatic aldehyde and an active methylene compound in methanol by conventional or microwave irradiation method (solvent-free or with solid support). All compounds were tested for antibacterial and antifungal activities and the results were compared with standard drugs. Their acaricidal and antifeedant activities were also tested.

scholarly journals Microwave-assisted urea catalyzed Knoevenagel condensation of aldehydes with active methylene compounds

2020 ◽  
Vol 55 (2) ◽  
pp. 159-164
Author(s):  
WT Purba ◽  
PS Roy ◽  
S Jannat ◽  
SA Begum ◽  
MM Rahman
Keyword(s):  
Microwave Irradiation ◽  
Efficient Method ◽  
Knoevenagel Condensation ◽  
Efficient Catalyst ◽  
Microwave Assisted ◽  
Solvent Free Conditions ◽  
Wide Range ◽  
Active Methylene Compounds ◽  
Reaction Proceeds ◽  
Active Methylene

Rapid and efficient method for the synthesis of substituted olefins such as 2-(4-chlorophenylmethylene) malononitrile, 2-(4-hydroxyphenylmethylene) malononitrile and 2-cyano-3-(4-hydroxyphenyl) acrylamide etc under the influence of microwave irradiation are described. Urea has been utilized as an efficient catalyst for the Knoevenagel condensation of aldehydes with acidic active methylene compounds such as malononitrile, ethylcyanoacetate and cyanoacetamide to afford substituted olefins under the influence of microwave irradiation. The reaction proceeds smoothly under mild and solvent free conditions and the products are obtained in good yield. The method is applicable for a wide range of aldehydes including aromatic and heterocyclic substrates. Bangladesh J. Sci. Ind. Res.55(2), 159-164, 2020

scholarly journals Effect of microwave irradiation on reactions of 5-arylfuran-2-carboxaldehydes with some active methylene compounds

ARKIVOC ◽  
2004 ◽  
Vol 2004 (1) ◽  
pp. 110-122 ◽  
Author(s):  
Estera Rábarová ◽  
Pavol Koiš ◽  
Margita Lácová ◽  
Alžbeta Krutošíková
Keyword(s):  
Microwave Irradiation ◽  
Active Methylene Compounds ◽  
Active Methylene
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