KNOEVENAGEL CONDENSATION
Tungstic acid catalysed Knoevenagel condensation: Synthesis of 5-arylidene -2, 4-thiazolidinediones
... Knoevenagel condensation of 5-arylidene- 2, 4 thiazolindione with aldehyde is a key step in synthesis of some clinically used antidiabetic agents like rosiglitazone, englitazone and ...
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A Solvent Free and Efficient Knoevenagel Condensation; Using Solid Mixed Metal Oxide Fe2O3/SnO2 as Heterogeneous Catalyst
... 9. Ranu, B. C., & Jana, R. Ionic Liquid as Catalyst and Reaction Medium–A Simple, Efficient and Green Procedure for Knoevenagel Condensation of Aliphatic and Aromatic Carbonyl Compounds Using a ...
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Coumarins via knoevenagel condensation reaction (KCR) and pechmann condesation reaction
... Pechmann condensation reaction consists in the formation of coumarin derivatives by aldol condensation of substituted phenols with β-ketoester in the presence of an acid catalyst ...through ...
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Trizma: Efficient catalyst and reactant in Knoevenagel condensation reaction under conventional heat and microwave irradiation conditions
... the condensation of carbonyl substrates with a variety of active methylene compounds using traditional bases, inorganic catalysts both under conventional as well as microwave heating conditions ...the ...
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Knoevenagel condensation at room temperature using SeO2/ZrO2 catalyst in water medium and solvent free conditions
... Knoevenagel condensation of aromatic aldehyde with active methylene compounds is basically a base catalyzed ...In Knoevenagel condensation the activation of methylene via abstraction of proton ...
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BF3/nano-γ-Al2O3 Promoted Knoevenagel Condensation at Room Temperature
... Knoevenagel condensation is one of the attractive and important pathways in organic synthesis. This protocol provides an easy access for compound which plays an important role as an intermediate for the ...
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Synthesis of mesoporous sodalite by mixed quaternary ammonium cation templates for knoevenagel condensation reaction
... The catalytic testing for all SOD samples was carried out in the Knoevenagel condensation reaction. The reaction of benzaldehyde with diethyl malonate was selected as a model of the reaction. Products of ...
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Synthesis and Characterisation of Novel Knoevenagel condensation product of naphthofuran 2 carbaldehyde with barbituric acid and ethylcyanoacetate
... In summary we have synthesized Knoevenagel condensation product of naphthofuran-2-carbaldehydes with barbituric acid and ethylcyanoacetate. The synthetic procedure followed is very simple as no specialised ...
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Water extract of onion catalyzed Knoevenagel condensation reaction: an efficient green procedure for synthesis of α-cyanoacrylonitriles and α-cyanoacrylates
... by Knoevenagel condensation between active methylene compounds with aliphatic, aromatic and heteroaromatic aldehydes in good to excellent yields using readily available, and inexpensive water extract of ...
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Preparation and characterization of polyethylene glycol-bis(N-methylimidazolium) dihydroxide as a basic phase-transfer catalyst and its application in Knoevenagel condensation under aqueous media
... In conclusion, the present study describes the preparation of a homogeneous basic phase-transfer catalyst by the reaction of polyethylene glycol-bis(N-methylimidazolium) dibromide and sodium hydroxide in aqueous media at ...
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ANTIMICROBIAL SCREENING OF SOME KNOEVENAGEL CONDENSATION POLYENE PRODUCTS DERIVED FROM- TRANS 3-(2-FURYL ACROLINE)
... knovenagel condensation from a synthetic perspective is that they offer a rout to the formation of C=C bond, by which the arylidene compounds are obtained from carbonyl compounds and active methylene compounds [1- ...
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L tyrosine catalyzed Knoevenagel condensation: Facile synthesis of cyanoacrylonitriles cyanoacrylates and cyanoacrylamides in solvent free condition under grindstone method
... The Knoevenagel condensation is one such reaction which facilitates C-C double bond formation and has been widely used in synthesis of olefins, cosmetic, perfume and pharmaceutical ...assisted ...
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Synthesis of mesoporous sodalite using various organic templates as catalyst in knoevenagel condensation reaction of 2-nitrobenzaldehyde and ethyl acetoacetate
... Knoevenagel condensation is a classic C-C bond formation reaction in organic chemistry ...solvent. Knoevenagel reaction carries out at the presence of sodalite with mesoporosity as a base ...
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Nano sodalite as solid base catalyst for knoevenagel condensation reaction
... versatile Knoevenagel condensation is classically catalyzed by bases in the liquid phase systems or Lewis acid under homogeneous ...self condensation as well as the total dissolved salt resulting ...
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Calcium Ferrite, an Efficient Catalyst for Knoevenagel Condensation (A Green Approach)
... of Knoevenagel condensation products using a highly efficient, cheaper, reusable, biocompatible and environment friendly heterogeneous nano catalyst yielding the products in good to excellent yields in ...
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ZnO catalyst for Knoevenagel condensation in aqueous medium at ambient temperature
... for Knoevenagel condensation of aromatic aldehyde with malononitrile and ethyl cyanoacetate catalyzed by inexpensive and ecofriendly solid catalyst ZnO at room temperature is ...
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Different Influence of Structure Elements of Ionic Liquids on the Knoevenagel Condensation Reactions
... the condensation product 6 were always higher in all ILs with the DMP anion than in the corresponding ILs with the chloride ...many Knoevenagel condensation reactions ...the condensation ...
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Synthesis of 3-Carboxylated Coumarins by Knoevenagel Condensation and Exploratory Anti-Inflammatory Activity Evaluation by in vivo Model
... the Knoevenagel condensation of o-vanillin aldehyde and dimethyl or diethyl malonate and further ...The condensation was performed by a one pot procedure, and the yield reached ...
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Ionic liquid is an efficient catalyst for Knoevenagel condensation under grinding method
... the Knoevenagel condensation of 4-oxo- (4H)-1-benzopyran-3-carbaldehydes and 2-chloroquinoline-3-carbaldehyde with various active methylene compounds ...
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Sodium Bicarbonate an Efficient Inorgano-green Catalyst for the Synthesis of diverse Knoevenagel and Knoevenagel / Michael Domino Reaction in Water
... catalyzed Knoevenagel condensation of active methylene compound (malononitrile and ethyl cyanoacetate) with various aldehydes including aromatic, heteroaromatic, α,β unsaturated aldehyde, ...
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