Effect of Poly(ethylene glycol)‐400 and Carbon on MoO<sub>3</sub> Nanocomposite Materials and Its Catalytic Activity

Navgire, Madhukar E.; Yelwande, Ajeet A.; Arbad, Balasaheb R.; Lande, Machhindra K.

doi:10.1002/cjoc.201180355

Cited by 6 publications

(2 citation statements)

References 29 publications

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“…All the prepared samples of nanocomposites were used to perform the Biginelli reaction under refluxing acetonitrile; among them, CPM-3 was found to be the most efficient and provided high to excellent yields of DHPMs. The reusability of catalyst was mentioned for two subsequent cycles without significant loss of activity . Although the methodology involved the multistep preparation of catalyst, it has contributed considerable improvements by reducing reaction time and increasing yields.…”

Section: Nanocatalystsmentioning

confidence: 99%

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Biginelli Reaction: Polymer Supported Catalytic Approaches

et al. 2019

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The Biginelli product, dihydropyrimidinone (DHPM) core, and its derivatives are of immense biological importance. There are several methods reported as modifications to the original Biginelli reaction. Among them, many involve the use of different catalysts. Also, among the advancements that have been made to the Biginelli reaction, improvements in product yields, less hazardous reaction conditions, and simplified isolation of products from the reaction predominate. Recently, solid-phase synthetic protocols have attracted the research community for improved yields, simplified product purification, recyclability of the solid support, which forms a special economic approach for Biginelli reaction. The present Review highlights the role of polymer-supported catalysts in Biginelli reaction, which may involve organic, inorganic, or hybrid polymers as support for catalysts. A few of the schemes involve magnetically recoverable catalysts where work up provides green approach relative to traditional methods. Some research groups used polymer−catalyst nanocomposites and polymer-supported ionic liquids as catalyst. Solvent-free, an ultrasound or microwave-assisted Biginelli reactions with polymer-supported catalysts are also reported.

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Section: Nanocatalystsmentioning

confidence: 99%

“…The reusability of catalyst was mentioned for two subsequent cycles without significant loss of activity. 253 Although the methodology involved the multistep preparation of catalyst, it has contributed considerable improvements by reducing reaction time and increasing yields.…”

Section: Acs Combinatorial Sciencementioning

confidence: 99%

Biginelli Reaction: Polymer Supported Catalytic Approaches

et al. 2019

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ChemInform Abstract: Effect of Poly(ethylene glycol)‐400 and Carbon on MoO₃ Nanocomposite Materials and Its Catalytic Activity for Biginelli Reactions.

et al. 2012

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The effect of addition of poly(ethylene glycol)-400 (PEG-400) and carbon (0, 1, 2 and 3 wt%) as substrates were investigated systematically to get the desired phase of carbon-doped MoO 3 material. The carbon source was prepared from the Acacia arabica plant wood. The resulting samples were calcined at 500 ℃. The effect of PEG-400 and carbon composite on the structure, particle size and morphology were investigated. The prepared samples were characterized by XRD, SEM-EDS and FT-IR techniques. The samples with PEG-400 and carbon addition give better control of particle size and porosity. The prepared catalysts were tested for the synthesis of 3,4-dihydropyrimidones via the Biginelli-type condensation reaction. This new method consistently has the advantage of excellent yields (88%-93%) and short reaction times (1.5-3 h) than do classical Biginelli reaction conditions.

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Alum (KAl(SO₄)₂·12H₂O) Catalyzed Multicomponent Transformation: Simple, Efficient, and Green Route to Synthesis of Functionalized Spiro[chromeno[2,3‐d]pyrimidine‐5,3′‐indoline]‐tetraones in Ionic Liquid Media

et al. 2012

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Effect of Poly(ethylene glycol)‐400 and Carbon on MoO₃ Nanocomposite Materials and Its Catalytic Activity

Abstract: An efficient catalytic system for the synthesis of 3,4‐dihydropyrimidone derivatives via a Biginelli‐type reaction is described.

Cited by 6 publications

References 29 publications

Biginelli Reaction: Polymer Supported Catalytic Approaches

Biginelli Reaction: Polymer Supported Catalytic Approaches

ChemInform Abstract: Effect of Poly(ethylene glycol)‐400 and Carbon on MoO₃ Nanocomposite Materials and Its Catalytic Activity for Biginelli Reactions.

Alum (KAl(SO₄)₂·12H₂O) Catalyzed Multicomponent Transformation: Simple, Efficient, and Green Route to Synthesis of Functionalized Spiro[chromeno[2,3‐d]pyrimidine‐5,3′‐indoline]‐tetraones in Ionic Liquid Media

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Effect of Poly(ethylene glycol)‐400 and Carbon on MoO3 Nanocomposite Materials and Its Catalytic Activity

Abstract: An efficient catalytic system for the synthesis of 3,4‐dihydropyrimidone derivatives via a Biginelli‐type reaction is described.

Cited by 6 publications

References 29 publications

Biginelli Reaction: Polymer Supported Catalytic Approaches

Biginelli Reaction: Polymer Supported Catalytic Approaches

ChemInform Abstract: Effect of Poly(ethylene glycol)‐400 and Carbon on MoO3 Nanocomposite Materials and Its Catalytic Activity for Biginelli Reactions.

Alum (KAl(SO4)2·12H2O) Catalyzed Multicomponent Transformation: Simple, Efficient, and Green Route to Synthesis of Functionalized Spiro[chromeno[2,3‐d]pyrimidine‐5,3′‐indoline]‐tetraones in Ionic Liquid Media

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Effect of Poly(ethylene glycol)‐400 and Carbon on MoO₃ Nanocomposite Materials and Its Catalytic Activity

ChemInform Abstract: Effect of Poly(ethylene glycol)‐400 and Carbon on MoO₃ Nanocomposite Materials and Its Catalytic Activity for Biginelli Reactions.

Alum (KAl(SO₄)₂·12H₂O) Catalyzed Multicomponent Transformation: Simple, Efficient, and Green Route to Synthesis of Functionalized Spiro[chromeno[2,3‐d]pyrimidine‐5,3′‐indoline]‐tetraones in Ionic Liquid Media