Ultrasound mediated green synthesis of pyrano[2,3-c]pyrazoles by using Mn doped ZrO2

Maddila, Suresh; Gorle, Sridevi; Shabalala, Sebenzile; Oyetade, Oluwaseun A.; Lavanya, P.; Jonnalagadda, Sreekantha B.

doi:10.1016/j.arabjc.2016.04.016

Cited by 44 publications

(17 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Maddila et al [ 75 ] developed manganese-doped zirconia (Mn/ZrO 2 ) which was prepared via the wet impregnation method. The spherical morphology and the crystallite size (12–23 nm) of the catalyst material was established by SEM and TEM investigation.…”

Section: With Bi-metallic Catalystsmentioning

confidence: 99%

Advances in Pyranopyrazole Scaffolds’ Syntheses Using Sustainable Catalysts—A Review

et al. 2021

Self Cite

View full text Add to dashboard Cite

Heterogeneous catalysis plays a crucial role in many chemical processes, including advanced organic preparations and the design and synthesis of new organic moieties. Efficient and sustainable catalysts are vital to ecological and fiscal viability. This is why green multicomponent reaction (MCR) approaches have gained prominence. Owing to a broad range of pharmacological applications, pyranopyrazole syntheses (through the one-pot strategy, employing sustainable heterogeneous catalysts) have received immense attention. This review aimed to emphasise recent developments in synthesising nitrogen-based fused heterocyclic ring frameworks, exploring diverse recyclable catalysts. The article focused on the synthetic protocols used between 2010 and 2020 using different single, bi- and tri-metallic materials and nanocomposites as reusable catalysts. This review designated the catalysts’ efficacy and activity in product yields, reaction time, and reusability. The MCR green methodologies (in conjunction with recyclable catalyst materials) proved eco-friendly and ideal, with a broad scope that could feasibly lead to advancements in organic synthesis.

show abstract

Section: With Bi-metallic Catalystsmentioning

confidence: 99%

Advances in Pyranopyrazole Scaffolds’ Syntheses Using Sustainable Catalysts—A Review

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…Mn‐doped zirconia (Mn/ZrO 2 ). [ 62 ] has also been utilized as an efficient catalyst to synthesize 2,4‐dihydropyranopyrazole‐3‐carboxylate and pyranopyrazole‐5‐carbonitrile 35 via four‐component reaction under ultra‐sonication in good to excellent yields (88%–98%).…”

Section: Review Of the Literaturementioning

confidence: 99%

Synthesis of pyrano[2,3‐c]pyrazoles: A review

Sikandar

Zahoor

2020

Journal of Heterocyclic Chem

View full text Add to dashboard Cite

One‐pot synthesis of pyrano[2,3‐c]pyrazole derivatives via two or multicomponent condensation of β‐ketoesters, hydrazine monohydrate/phenyl hydrazine, malononitrile, and substituted benzaldehydes is of great interest not only in synthetic chemistry but also in medicinal chemistry because of the tremendous biological activities, such as anticancer, anti‐inflammatory, analgesic, antimicrobial, and enzyme inhibitory activities exhibited by pyranopyrazoles. This review provides extensive knowledge on novel synthetic methodologies of biologically active non‐spiro/spiro‐pyrano[2,3‐c]pyrazole derivatives published recently.

show abstract

“…Mn doped zirconia (Mn/ZrO 2 ) was utilized as an environmental-friendly catalyst for an ultrasound mediated four-component synthesis of pyrano [2,3- c]pyrazole-5-carbonitriles by coupling reaction of dimethylacetylenedicarboxylate/ethyl acetoacetate, hydrazine hydrate, malononitrile, and aromatic aldehyde in aqueous ethanol and at room temperature 165 (Scheme 133). Reusability of the catalyst was checked by the model reaction.…”

Section: Using Ultrasound Technologymentioning

confidence: 99%

A Review on the Recent Multicomponent Synthesis of Pyranopyrazoles

Mamaghani

Nia

2019

Polycyclic Aromatic Compounds

View full text Add to dashboard Cite

Due to biological and medicinal properties of pyranopyrazoles, synthesis of these bioactive heterocycles has attracted the interest of medicinal and organic chemists. This review focuses on the recent developments in multicomponent synthesis of pyranopyrazole and spiroconjugated pyranopyrazole systems. The present review describes the literature reports for the period 2005 to 2018. These reported approaches were performed in the classical and nonclassical conditions, particularly recent reports includes protocols under a green condition such as using catalyst, green solvents, and solvent-free conditions. ARTICLE HISTORY

show abstract

Ultrasound mediated green synthesis of pyrano[2,3-c]pyrazoles by using Mn doped ZrO2

Cited by 44 publications

References 54 publications

Advances in Pyranopyrazole Scaffolds’ Syntheses Using Sustainable Catalysts—A Review

Advances in Pyranopyrazole Scaffolds’ Syntheses Using Sustainable Catalysts—A Review

Synthesis of pyrano[2,3‐c]pyrazoles: A review

A Review on the Recent Multicomponent Synthesis of Pyranopyrazoles

Contact Info

Product

Resources

About