Copper‐Exchanged Magnetic‐FAp: Surface Catalysis in Decarboxylative Coupling of <i>α</i>‐Oxocarboxylic Acids with Formamides

Mirfarjood, S. A.; Mamaghani, Manouchehr; Sheykhan, Mehdi

doi:10.1002/slct.201701438

Cited by 11 publications

(3 citation statements)

References 116 publications

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“…Also, catalyst recycling complies with most of the "principles of green chemistry". [58,59] To achieve long durability as an essential catalytic efficiency parameter, as shown by the recovered catalyst % yields for 2a (Figure 7), The yield for five batches was 98, 95, 92, 87, and 85 %, respectively, which is justifiable considering the catalyst XRD and IR spectra (Figure 5 and 6), revealing an unchanged structure of catalyst throughout the recovery and reuse investigations.…”

Section: Recyclabilitymentioning

confidence: 94%

One‐pot Multicomponent Synthesis of Novel Chromene Derivatives Using New Organic Phosphate Salt Catalysts

Salmalian,

Mahmoodi,

Sheykhan

2023

ChemistrySelect

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A new method for synthesizing chromene derivatives as an essential class of heterocyclic compounds has been reported. This research described synthesizing and identifying three new organic salt catalysts based on phosphate moieties. Among the synthesized new phosphate‐based organic salt catalysts, disodium ethyl (phenyl) amino phosphate (DSEAP) plays an essential role and reusable catalyst for the preparation of chromene derivatives under different reaction conditions following the principles of green chemistry. Cost‐effectiveness, non‐toxicity and easy availability are among the salient features of this environmentally friendly catalyst. Furthermore, the catalyst was satisfactorily recycled up to four times without significant performance degradation in the yield of synthesized chromenes. X‐ray diffraction (XRD), infrared spectroscopy (FT‐IR), thermal gravimetric analysis (TGA), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) were employed to illustrate the structural and morphologic characteristics of the catalysts. Some synthesized chromene derivatives, including 4I and 4P, showed good antibacterial and biological antioxidant activity compared to the standard drug, respectively. In this research, DSEAP was used as a heterogeneous catalyst in performing one‐pot 3MCRs of aryl aldehyde, an active methylene group e. g. ethyl acetoacetate or diethyl malonate and 5,5‐dimethyl‐1,3‐cyclohexanedione.

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Section: Recyclabilitymentioning

confidence: 94%

One‐pot Multicomponent Synthesis of Novel Chromene Derivatives Using New Organic Phosphate Salt Catalysts

Salmalian,

Mahmoodi,

Sheykhan

2023

ChemistrySelect

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“…In line with our continuous research program to develop green pathways in organic transformations and synthesize new heterocyclic systems, Ag/CuO/MCM‐48 (Scheme ) as a novel heterogeneous catalyst was prepared and applied for the synthesis of hitherto unreported 2‐pyranylpyrrole derivatives (Scheme ).…”

Section: Introductionmentioning

confidence: 99%

Introduction of Ag/CuO/MCM‐48 as an efficient catalyst for the one‐pot synthesis of novel pyran‐pyrrole hybrids

Tavakoli

Mamaghani

Sheykhan

2019

Applied Organom Chemis

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Bimetallic silver and copper incorporated mesoporous MCM‐48 (Ag/CuO/MCM‐48) was synthesized by simple wet‐impregnation method. The knowledge about its structural properties was gathered by means of Fourier transform‐infrared, energy‐dispersive X‐ray, X‐ray diffraction, field emission‐scanning electron microscopy, transmission electron microscopy and Brunauer–Emmett–Teller analyses. The catalytic activity of Ag/CuO/MCM‐48 was examined in the one‐pot three‐component reaction of 3‐(1‐methyl‐1H‐pyrrol‐2‐yl)‐3‐oxopropanenitrile, malononitrile and various aromatic aldehydes leading to novel pyran‐pyrrole hybrid derivatives in reduced reaction times (5–10 min) and excellent yields (88–97%). Application of Ag/CuO/MCM‐48 as a potent heterogeneous catalyst with good reusability up to five times, use of ethanol as an eco‐compatible medium and chromatography‐free work‐up are some crucial green aspects of this procedure.

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“…The product was air-dried and then kept in a furnace at 300°C for 3 h to give a dark-brown powder. As shown in Scheme 1, 500 mg c-Fe 2 O 3 @FAp was stirred with 8 mmol Cu(NO 3 ) 2 Á4H 2 O in 100 mL water at room temperature for a period of 2 h. The obtained slurry was magnetic decanted, washed with DW repeatedly, and dried at 100°C yielding c-Fe 2 O 3 @CuFAp nanoparticles [30].…”

Section: Synthesis Of Nano-fe 3 O 4 Mnpsmentioning

confidence: 99%

Copper-incorporated fluorapatite encapsulated iron oxide nanocatalyst for synthesis of benzimidazoles

2017

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c-Fe 2 O 3 @CuFAp nanocatalyst was synthesized and characterized by several methods including XRD, SEM, TEM, ICP, and FT-IR analyses. The c-Fe 2 O 3 @-CuFAp has been used as an efficient recyclable magnetic catalyst for synthesis of benzimidazoles. The c-Fe 2 O 3 @-CuFAp was conveniently separated from the reaction mixture by an external magnet, and could be reused at least 12 times without any considerable change in catalytic activity. Graphical abstract

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Copper‐Exchanged Magnetic‐FAp: Surface Catalysis in Decarboxylative Coupling of α‐Oxocarboxylic Acids with Formamides

Cited by 11 publications

References 116 publications

One‐pot Multicomponent Synthesis of Novel Chromene Derivatives Using New Organic Phosphate Salt Catalysts

One‐pot Multicomponent Synthesis of Novel Chromene Derivatives Using New Organic Phosphate Salt Catalysts

Introduction of Ag/CuO/MCM‐48 as an efficient catalyst for the one‐pot synthesis of novel pyran‐pyrrole hybrids

Copper-incorporated fluorapatite encapsulated iron oxide nanocatalyst for synthesis of benzimidazoles

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