Green synthesis of 2-aryl benzothiazole heterogenous catalyzed by MoO3 nanorods

Dighore, Nitin R.; Anandgaonker, Priyanka L.; Gaikwad, Suresh T.; Rajbhoj, Anjali S.

doi:10.1515/gps-2015-0065

Cited by 3 publications

(1 citation statement)

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“…Although some researchers have reported this reaction with the use of no catalyst (Vieira et al, 2011;Figueroa-Villar and Vieira. 2013;Vieira et al, 2015), irradiation of visible light (Kumari et al, 2021), the following catalysts are used and introduced in this regard: [DABCO](SO 3 H) 2 Cl 2 (Shirini et al, 2015), [DABCO] (SO 3 H) 2 (HSO 4 ) 2 (Seyyedi et al, 2016), p-nanoporous MMT-HClO 4 (Mashhadinezhad et al, 2018), dodecylbenzenesulfonic acid (DBSA) (Hosseini et al, 2016), FeCl 3 .6H 2 O (Kefayati et al, 2014), ethylammonium nitrate (Hu et al, 2004), silico-tungstic acid (Li and Sun, 2009), amino-sulfonic acid (Li et al, 2006), NaOH/fly ash (Gadekar and Lande, 2012), sodium p-toluene sulfonate (NaPTSA) (Kamble et al, 2010), CoFe 2 O 4 -NPs (Rajput and Karur, 2013), non-catalyst/infrared irradiation (Alarreca et al, 2000), BF 3 / nano γ-Al 2 O 3 (Mirjalili et al, 2015), succinimidinium N-sulfonic acid hydrogen sulfate ([SuSA-H]HSO 4 ) (Abedini et al, 2016), basic alumina (KhalafInezhad and Hashemi, 2001), Verjuice (Safari et al, 2019), sulfonic acid functionalized nanoporous silica (SBA-Pr-SO 3 H) (Shirini et al, 2015), copper oxide nanoparticles (CuO-NPs) (Dighore et al, 2014), aminosulfonic acid (NH 2 SO 3 H) (Li et al, 2006), 2amino-3-(4-hydroxyphenyl) propanoic acid (L-tyrosine) (Thirupathi et al, 2013), CoFe 2 O 4 nanoparticles (Rajput and Kaur, 2013), sodium acetate (CH 3 COONa) (Uttam, 2016), 1-nbutyl-3-methylimmidazolium tetrafluoroborate ([bmim]BF 4 ) (Wang et al, 2005), polyvinyl pyrrolidone stabilized nickel nanoparticles (PVP-Ni-NPs) (Khurana and Vij, 2010), cetyltrimethyl ammonium bromide (CTMAB) (Ren et al, 2002), ethyl ammonium nitrate (EAN)…”

Section: Introductionmentioning

confidence: 99%

Microwave-assisted synthetic method of novel Bi2O3 nanostructure and its application as a high-performance nano-catalyst in preparing benzylidene barbituric acid derivatives

Yahyazadehfar

Sheikhhosseini²,

Ahmadi³

et al. 2022

Front. Chem.

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In this study, controllable and optimal microwave irradiation has been used to synthesize the novel nanostructures of Bi2O3 under environmental conditions. The final products had a thermal stability of 210°C, an average particle size distribution of 85 nm, and a surface area of 783 m2/g. The high thermodynamic stability of Bi2O3 nanostructures was confirmed by TG and differential scanning calorimetry (DSC) analyses. The nanostructure nature of compounds, and most importantly, the use of an effective, cost-effective, and rapid synthesis route of microwave have created significant physiochemical properties in the Bi2O3 products. These unexpected properties have made the possibility of potential application of these products in various fields, especially in nano-catalyst applications. It is well-documented that, as Lewis acid, bismuth nano-catalyst exhibits a great catalytic activity for the green synthesis of some bio-active barbituric acid derivatives using precursors with electron-donating or electron-withdrawing nature in high yields (80%–98%). After incorporating this catalyst into the aqueous media, all the reactions were completed within 2–3 min at room temperature. The main advantages of this method are practical facility, the availability of starting materials, and low costs besides the catalyst reusability. Additionally, the catalyst synthesis process may be carried out in the aqueous media for a short period with medium to high yields. The obtained results have opened a new window for the development of a novel nano-catalyst with practical application.

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