Chloromethylated polystyrene immobilized ruthenium complex of 2-(2-pyridyl)benzimidazole catalyst for the synthesis of bioactive disubstituted ureas by carbonylation reaction

Polymer supported transition metal complex catalysts have numerous applications as heterogeneous catalysts due to their ease of synthesis and commercial availability. Ru–Py–Merf was synthesized by anchoring 2-(2-pyridyl)benzimidazole to the polymer matrix, followed by loading of ruthenium salt. This...

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Bibliographic Details
Published in:New journal of chemistry 2018, Vol.42 (11), p.9168-9176
Main Authors: Dey, Tusar Kanto, Ghosh, Kajari, Basu, Priyanka, Molla, Rostam Ali, Islam, Sk. Manirul
Format: Article
Language:English
Subjects:
Anchoring
Carbonyls
Catalysis
Catalysts
Catalytic activity
Chemical synthesis
Coordination compounds
Fourier transforms
Nitrobenzene
Polystyrene resins
Ruthenium
Spectroscopic analysis
Spectrum analysis
Thermal stability
Ureas
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Summary:Polymer supported transition metal complex catalysts have numerous applications as heterogeneous catalysts due to their ease of synthesis and commercial availability. Ru–Py–Merf was synthesized by anchoring 2-(2-pyridyl)benzimidazole to the polymer matrix, followed by loading of ruthenium salt. This Ru–Py–Merf material was thoroughly characterized by FTIR spectroscopy, UV-vis absorption spectroscopy, FE-SEM analysis, EDAX analysis, CHN analysis, AAS spectroscopy and TGA. Ru–Py–Merf showed excellent catalytic activity in the synthesis of symmetric and asymmetric disubstituted ureas by reductive carbonylation of nitrobenzenes and anilines. The as-synthesized Ru–Py–Merf catalyst is entirely heterogeneous in nature, thermally stable and can be easily reused up to six times.
ISSN:1144-0546
1369-9261
DOI:10.1039/C8NJ00475G