Synthesis of pyrazol-quinazolinones and 2,3-dihydroquinazolin-4(1H)-ones using CoAl2O4 nanoparticles as heterogeneous catalyst

Ahmadian, Fatemeh; Barmak, Alireza; Ghaderi, Esmali; Bavadi, Masoumeh; Raanaei, Hossein; Niknam, Khodabakhsh

doi:10.1007/s13738-019-01729-9

Cited by 5 publications

(2 citation statements)

References 53 publications

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“…/M.P. ( o C) b 1 93 205–206/207–209 27 2 95 213–215/216–218 27 3 94 223–224/221–223 27 4 92 224–226/223–225 27 5 92 204–206/205–207 27 6 96 215–217/211–213 37 7 91 273–275/273–275 38 8 96 250–252/247–250 39 9 96 209–211/205–207 40 10 87 187–189 11 89 182–184 12 85 175–177 …”

Section: Methodsmentioning

confidence: 99%

“…In recent years, there have been numerous reports on the synthesis of 2,3-dihydroquinazolin-4(1H)-ones using diverse catalysts, such as Fe 3 O 4 @SiO 2 @TiO 2 -OSO 3 H 22 , 5,5'-Indigodisulfonic acid 23 , MCM-41-SO 3 H 24 , SCMNPs-Pr-HMTA-SO 3 H 25 , Al(H 2 PO 4 ) 3 26 , CoAl 2 O 4 Nanoparticles 27 , SnCl 2 .2H 2 O 28 , Fe 3 O 4 @EDTA/CuI 29 , SiO 2 –H 3 PW 12 O 40 30 , Co aminobenzamid@Al SBA 15 31 , Boric Acid Supported on Montmorillonites 32 . However, most of these procedures have certain limitations, such as lengthy procedures, harsh reaction conditions, hazardous and volatile organic solvents, application of expensive and unavailable reagents, and non-reusability of the catalyst.…”

Section: Introductionmentioning

confidence: 99%

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Sulfonated magnetic spirulina nanobiomaterial as a novel and environmentally friendly catalyst for the synthesis of dihydroquinazolin-4(1H)-ones in aqueous medium

Mashhadi,

Safaei-Ghomi

2024

Sci Rep

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Spirulina algae is an excellent candidate for catalyst preparation due to its reactive functional groups, cost-effectiveness, widespread commercial accessibility, and biodegradability. In this study, magnetized Spirulina was used for the synthesis of dihydroquinazolin-4(1H)-ones (DHQZs) as catalyst. Magnetized Spirulina was produced by CoFe2O4 and sulfonation method using chlorosulfonic acid to create the catalyst [CoFe2O4-Sp-SO3H]. It was affirmed by various techniques, including Fourier transform infrared (FT-IR), Vibrating sample magnetometry (VSM), Powder X-ray diffraction (XRD), Energy-dispersive X-ray spectroscopy (EDS), Thermogravimetric analysis (TGA), Transmission electron microscopy (TEM), Field emission scanning electron microscopy (FE-SEM), and elemental mapping techniques. DHQZs synthesis was accomplished through a concise one-pot, three-component reaction involving a range of diverse aldehydes, isatoic anhydride, and primary aromatic amine, within an aqueous medium. The method offers several advantages, including using green conditions, the generation of several new 2-furan-quinazolinone derivatives, chromatography-free purification, short reaction times, appropriate yield of product (75–96%), and catalyst recyclability. The proposed catalyst and water as solvent demonstrated a strong synergistic effect, leading to the prosperous synthesis of various novel dihydroquinazolinones at 60 °C. These numerous benefits make our approach highly attractive for academic research and industrial applications.

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