A simple, solvent and catalyst-free green synthetic protocol for α-amino phosphonates

Katla, Ramesh; Sabbavarapu, Narayana Murthy; Karnakar, K.; Durga, Nageswar Yadavalli Venkata

doi:10.5155/eurjchem.3.1.119-124.449

Cited by 8 publications

(1 citation statement)

References 30 publications

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“…The recovered catalyst (0.019 g) was reused in the reaction for four runs. All of the pure products were characterized by comparison of their physical and spectral data with authentic samples (43)(44)(45)(46)(47)(48)(49)(50)(51)(52)(53).…”

Section: General Procedures For the Synthesis Of N-aryl Pyrrolementioning

confidence: 99%

Facile sonochemical heterocyclization of 2,5-dimethoxy tetrahydrofuran with primary amines using sulfonated MWCNTs as a recyclable catalyst in aqueous media

Naeimi

Dadaei

2017

Green Chemistry Letters and Reviews

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A set of N-substituted pyrrole derivatives have been designed and synthesized using sulfonated multi-walled carbon nanotubes as a recyclable heterogeneous catalyst under ultrasound irradiation. This reaction was carried out between 2,5-dimethoxy tetrahydrofuran and primary amines in water under green conditions. This method has some advantages such as: short reaction times, excellent product yields, simplicity of the procedure, easy work-up and high purity of products.

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Section: General Procedures For the Synthesis Of N-aryl Pyrrolementioning

confidence: 99%

Facile sonochemical heterocyclization of 2,5-dimethoxy tetrahydrofuran with primary amines using sulfonated MWCNTs as a recyclable catalyst in aqueous media

Naeimi

Dadaei

2017

Green Chemistry Letters and Reviews

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Magnetic Fe₃O₄ Nanoparticle‐Supported Phosphotungstic Acid as a Recyclable Catalyst for the Kabachnik–Fields Reaction of Isatins, Imines, and Aldehydes under Solvent‐Free Conditions

et al. 2014

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Magnetic‐nanoparticle‐supported phosphotungstic acid has been used to efficiently catalyze the hydrophosphonylation reaction of isatins, imines, and aldehydes using dimethyl and diethyl phosphite as a nucleophile to give the corresponding α‐hydroxy and α‐amino phosphonates in excellent yields for a wide range of substrates. The reaction conditions were simple, green, and efficient. The catalyst was recycled up to five times with retention of its activity. Based on the NMR spectroscopy studies, a probable catalytic cycle was proposed.

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Solvent‐Free and Catalysts‐Free Chemistry: A Benign Pathway to Sustainability

Gawande¹,

Bonifácio²,

Luque³

et al. 2013

ChemSusChem

264

121

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In the past decade, alternative benign organic methodologies have become an imperative part of organic syntheses and chemical reactions. The various new and innovative sustainable organic reactions and methodologies using no solvents or catalysts and employing alternative energy inputs such as microwaves, sonication, conventional and room temperature heating conditions, mechanochemical mixing, and high-speed ball milling are discussed in detail. Environmentally benign and pharmaceutically important reactions such as multicomponent, condensation, and Michael addition reactions; ring opening of epoxides; and oxidation and other significant organic reactions are discussed. An overview of benign reactions through solvent- and catalyst-free (SF-CF) chemistry and a critical perspective on emerging synergies between SF-CF organic reactions are discussed.

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A simple, solvent and catalyst-free green synthetic protocol for α-amino phosphonates

Cited by 8 publications

References 30 publications

Facile sonochemical heterocyclization of 2,5-dimethoxy tetrahydrofuran with primary amines using sulfonated MWCNTs as a recyclable catalyst in aqueous media

Facile sonochemical heterocyclization of 2,5-dimethoxy tetrahydrofuran with primary amines using sulfonated MWCNTs as a recyclable catalyst in aqueous media

Magnetic Fe₃O₄ Nanoparticle‐Supported Phosphotungstic Acid as a Recyclable Catalyst for the Kabachnik–Fields Reaction of Isatins, Imines, and Aldehydes under Solvent‐Free Conditions

Solvent‐Free and Catalysts‐Free Chemistry: A Benign Pathway to Sustainability

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A simple, solvent and catalyst-free green synthetic protocol for α-amino phosphonates

Cited by 8 publications

References 30 publications

Facile sonochemical heterocyclization of 2,5-dimethoxy tetrahydrofuran with primary amines using sulfonated MWCNTs as a recyclable catalyst in aqueous media

Facile sonochemical heterocyclization of 2,5-dimethoxy tetrahydrofuran with primary amines using sulfonated MWCNTs as a recyclable catalyst in aqueous media

Magnetic Fe3O4 Nanoparticle‐Supported Phosphotungstic Acid as a Recyclable Catalyst for the Kabachnik–Fields Reaction of Isatins, Imines, and Aldehydes under Solvent‐Free Conditions

Solvent‐Free and Catalysts‐Free Chemistry: A Benign Pathway to Sustainability

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Magnetic Fe₃O₄ Nanoparticle‐Supported Phosphotungstic Acid as a Recyclable Catalyst for the Kabachnik–Fields Reaction of Isatins, Imines, and Aldehydes under Solvent‐Free Conditions