Ferric Sulfasalazine Sulfa Drug Complex Supported on Cobalt Ferrite Cellulose; Evaluation of Its Activity in MCRs

Rostamizadeh, Shahnaz; Daneshfar, Zahra; Khazaei, Ali

doi:10.1007/s10562-020-03101-6

Cited by 5 publications

(2 citation statements)

References 38 publications

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“… Entry Catalyst Catalyst loading (mg) Solvent Temp. (°C) Time (min) Yield (%) Ref 1 Sodium alginate 20 EtOH Reflux 195 84 14 2 Uera-ChCl 30 DES 80 120 88 55 3 CuFe 2 O 4 @starch 30 EtOH rt 20 96 58 4 CoFe 2 O 4 -Cell/Fe (III) SSZ 160 EtOH 60 8 98 59 5 KF-Al 2 O 3 16 mg EtOH rt 180 91 60 6 Fe 3 O 4 /EDTA 5 mg EtOH rt 13 95 61 7 Cs-EDTA-Cell 10 mg ...…”

Section: Resultsmentioning

confidence: 99%

“…A simple and general protocol for preparation of 2-amino-4 H -pyran derivatives involves a three-component one-pot cyclocondensation of ethyl acetoacetate, malononirilel/alkyl cyanoacetate and various carbonyl compounds. Several modified methods have been reported using different homogeneous or heterogeneous catalysts such as uera-chCl 55 , potassium phthalimide- N -oxyl 56 , potassium phthalimide under ball-milling 57 , Et 3 N under sonication 54 , CuFe 2 O 4 @starch 58 , CoFe 2 O 4 -Cell/Fe (III) SSZ 59 , KF-Al 2 O 3 60 , Fe 3 O 4 /EDTA 61 , γ-Fe 2 O 3 -Im-Py) 2 WO 4 62 , amine-functionalized SiO 2 @Fe 3 O 4 63 , water extract of red mud 64 , sodium alginate 13 , 14 , isocyanurate-based periodic mesoporous organosilica 65 and silver nanoparticles-decorated Preyssler functionalized cellulose 66 in recent years. In continuation of our research group to expand the catalytic activity of pristine or modified biopolymers for different MCRs 10 – 14 , 32 , 67 , 68 , this report presents the use of Cs-EDTA-Cell as a biopolymer nanocatalyst for the synthesis of 2-amino-4 H -pyran derivatives (Fig.…”

Section: Introductionmentioning

confidence: 99%

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Chitosan-EDTA-Cellulose network as a green, recyclable and multifunctional biopolymeric organocatalyst for the one-pot synthesis of 2-amino-4H-pyran derivatives

Rostami

Dekamin

Valiey

et al. 2022

Sci Rep

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In this research, cellulose grafted to chitosan by EDTA (Cs-EDTA-Cell) bio-based material is reported and characterized by a series of various methods and techniques such as FTIR, DRS-UV–Vis, TGA, FESEM, XRD and EDX analysis. In fact, the Cs-EDTA-Cell network is more thermally stable than pristine cellulose or chitosan. There is a plenty of both acidic and basic sites on the surface of this bio-based and biodegradable network, as a multifunctional organocatalyst, to proceed three-component synthesis of 2-amino-4H-pyran derivatives at room temperature in EtOH. The Cs-EDTA-Cell nanocatalyst can be easily recovered from the reaction mixture by using filtration and reused for at least five times without significant decrease in its catalytic activity. In general, the Cs-EDTA-Cell network, as a heterogeneous catalyst, demonstrated excellent catalytic activity in an environmentally-benign solvent to afford desired products in short reaction times and required simple experimental and work-up procedure compared to many protocols using similar catalytic systems.

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