Ultrasound-promoted green synthesis of 1,4-dihydropyridines using fuctionalized MWCNTs as a highly efficient heterogeneous catalyst

Moradi, Leila; Zare, Mina

doi:10.1080/17518253.2018.1458160

Cited by 39 publications

(23 citation statements)

References 73 publications

(50 reference statements)

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“…Clean and green reaction conditions, shorter reaction times, high product yield, heterogeneity, and catalyst reusability are some of the main advantages of the reported method. 44 Further, graphene oxide-supported PdRuNi@GO nanomaterial was synthesized and characterized by TEM, HRTEM, XRD, and XPS techniques. The TEM image of the synthesized PdRuNi@GO showed that the particles are distributed on the support of graphene oxide, as shown in Fig.…”

Section: Non-magnetic Metal Oxide/mixedmetal Oxide Nanoparticles Catamentioning

confidence: 99%

Recent developments in the nanomaterial-catalyzed green synthesis of structurally diverse 1,4-dihydropyridines

Mathur¹,

Negi

Shrivastava

et al. 2021

RSC Adv.

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Section: Non-magnetic Metal Oxide/mixedmetal Oxide Nanoparticles Catamentioning

confidence: 99%

Recent developments in the nanomaterial-catalyzed green synthesis of structurally diverse 1,4-dihydropyridines

Mathur¹,

Negi

Shrivastava

et al. 2021

RSC Adv.

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“…The diffusion of the Hantzsch reaction in building up the 1,4-DHPs libraries is mainly to be attributed to the discovery that ammonia could be efficiently replaced by ammonium acetate. [30,31] Furthermore, the use of several different homogeneous and heterogeneous catalysts, [32] as well as ionic liquids, [33] organocatalysts [34,35] and alternative energy sources, [35][36][37][38][39] can accelerate the reaction times and increase the reaction yields. Several past reviews provide a complete survey on the synthetic methodologies for realizing the Hantzsch reaction, as well as on the libraries of the resulting structurally different 1,4-DHPs.…”

Section: The Hanztsch Reactionmentioning

confidence: 99%

Similarity and Competition between Biginelli and Hantzsch Reactions: an Opportunity for Modern Medicinal Chemistry

2020

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Similarity and competition between multicomponent reactions with similar mechanisms and leading to similar scaffolds can be a useful tool for medicinal chemistry. In this review, we have summarized the studies disclosing the mechanism of such competition between the Biginelli and Hantzsch reactions. We focused our attention in particular on those studies exploiting similarity and competition as an opportunity to switch from one reaction to another, by simply changing the reaction conditions, thus opening the possibility to obtain, using the same experimental setup, molecular libraries of both 3,4‐dihydropyrimidin‐2‐(1H)‐ones (DHPM) and 1,4‐dihydropyridines (1,4‐DHP) scaffolds. The aim of this review is to encourage further exploitation of such synthetic strategy as a tool for enhancing the chemical space in medicinal chemistry.

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“…The temperature of these bubbles is around 5000 K, with pressures of roughly 1000 atm . Thus, the ultrasonic irradiation provided a green, powerful, rapid, safe, clean and efficient condition for synthetic chemistry …”

Section: Introductionmentioning

confidence: 99%

Green and rapid synthesis of dihydropyrimido [4,5‐b]quinolinetrione derivatives using CoFe₂O₄@PPA as high efficient solid acidic catalyst under ultrasonic irradiation

Moradi

Mahdipour

2019

Applied Organom Chemis

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A new high efficient and green protocol for the preparation of dihydropyrimido [4,5-b]quinolinetrione derivatives using magnetically solid acid catalyst was presented. High performance solid acid catalyst was prepared through a three-step reaction. Firstly, CoFe 2 O 4 nano particles were synthesized using co-precipitation method. In second step, CoFe 2 O 4 nano particles were coated with SiO 2 shell through treatment with tetraethyl orthosilicate (CoFe 2 O 4 @SiO 2 ). Finaly, CoFe 2 O 4 @SiO 2 was modified with polyphosphoric acid (CoFe 2 O 4 @SiO 2 /PPA) in a simple manner. Green reusable catalyst was characterized in details using FTIR, VSM, TEM, FESEM, EDX and used as catalyst for the synthesis of dihydropyrimido[4,5-b]quinolinetrione derivatives.Reaction was performed under ultrasonic irradiation as green, effective and mild conditions and products were achieved in high to excellent yields.Green and eco-friendly conditions, short reaction times with high yield of products in addition to easy workup are some merits of presented method. KEYWORDSCoFe 2 O 4 @SiO 2 /PPA, dihydropyrimido[4,5-b]quinolinetrione, green chemistry, solid acidic catalyst, ultrasonic irradiation

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Ultrasound-promoted green synthesis of 1,4-dihydropyridines using fuctionalized MWCNTs as a highly efficient heterogeneous catalyst

Abstract: View related articles View Crossmark data Citing articles: 1 View citing articles Ultrasound-promoted green synthesis of 1,4-dihydropyridines using fuctionalized MWCNTs as a highly efficient heterogeneous catalyst

Cited by 39 publications

References 73 publications

Recent developments in the nanomaterial-catalyzed green synthesis of structurally diverse 1,4-dihydropyridines

Recent developments in the nanomaterial-catalyzed green synthesis of structurally diverse 1,4-dihydropyridines

Similarity and Competition between Biginelli and Hantzsch Reactions: an Opportunity for Modern Medicinal Chemistry

Green and rapid synthesis of dihydropyrimido [4,5‐b]quinolinetrione derivatives using CoFe₂O₄@PPA as high efficient solid acidic catalyst under ultrasonic irradiation

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Ultrasound-promoted green synthesis of 1,4-dihydropyridines using fuctionalized MWCNTs as a highly efficient heterogeneous catalyst

Abstract: View related articles View Crossmark data Citing articles: 1 View citing articles Ultrasound-promoted green synthesis of 1,4-dihydropyridines using fuctionalized MWCNTs as a highly efficient heterogeneous catalyst

Cited by 39 publications

References 73 publications

Recent developments in the nanomaterial-catalyzed green synthesis of structurally diverse 1,4-dihydropyridines

Recent developments in the nanomaterial-catalyzed green synthesis of structurally diverse 1,4-dihydropyridines

Similarity and Competition between Biginelli and Hantzsch Reactions: an Opportunity for Modern Medicinal Chemistry

Green and rapid synthesis of dihydropyrimido [4,5‐b]quinolinetrione derivatives using CoFe2O4@PPA as high efficient solid acidic catalyst under ultrasonic irradiation

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Green and rapid synthesis of dihydropyrimido [4,5‐b]quinolinetrione derivatives using CoFe₂O₄@PPA as high efficient solid acidic catalyst under ultrasonic irradiation