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- Title
Synthesis, characterization and application of a magnetically separable nanocatalyst for the preparation of 4,4′-(arylmethylene)-bis(3-methyl-1-phenyl-1H-pyrazol-5-ol) derivatives.
- Authors
Jazinizadeh, Elham; Zare, Abdolkarim; Sajadikhah, Seyed Sajad; Barzegar, Marziyeh; Kohzadian, Alireza
- Abstract
At first, synthesis and characterization of a new core–shell magnetic nanomaterial, namely 4,4′-bipyridin-1-ium hydrogen sulfate grafted on chloropropyl functionalized silica gel-nano-Fe3O4 (BPHCSF), have been reported; the characterization has been done using EDS, FE-SEM, TEM, FT-IR, XRD, TGA and VSM analyses. Afterward, examining catalytic performance of BPHCSF for the solvent-free preparation of 4,4′-(arylmethylene)-bis(3-methyl-1-phenyl-1H-pyrazol-5-ol) derivatives from 3-methyl-1-phenyl-1H-pyrazol-5(4H)-one (2 eq.) and arylaldehydes (1 eq.) has been described. The products have been obtained in high yields and short reaction times, and the catalyst was successfully reused for three times without significant decrement of its catalytic activity.
- Subjects
NANOPARTICLES; SULFURIC acid; CATALYTIC activity; NANOSTRUCTURED materials; CHEMICAL yield; MESOPOROUS silica
- Publication
Research on Chemical Intermediates, 2022, Vol 48, Issue 12, p5059
- ISSN
0922-6168
- Publication type
Article
- DOI
10.1007/s11164-022-04854-y