Evidence map›Paper›PMID 41934562›Full record

ReviewMolecular diversity2026

Recent advances in rice-derived heterogeneous catalysts for green organic synthesis.

Radwan Ali, Mohanad Y Saleh, Ahmed M Amshawee, Hassan A Alshamsi, Abbas Al-Nayili, Bassma M Oleiwi, Amal J Youssef

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In one paragraph

Review in Molecular diversity, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Radwan AliDepartment of Basic Sciences, College of Dentistry, Al-Qadisiyah University, Al-Qadisiyah, Iraq. radwan.ali@qu.edu.iq.ORCID http://orcid.org/0000-0003-0670-5442
Mohanad Y SalehDepartment of Chemistry, College of Education for Pure Science, University of Mosul, Mosul, Iraq. mohanadalallaf@uomosul.edu.iq.
Ahmed M AmshaweeDepartment of Radiology, College of Health and Medical Technology, University of Hilla, Babylon, Iraq.
Hassan A AlshamsiDepartment of Chemistry, College of Education, University of Al-Qadisiyah, Al-Qadisiyah, Iraq.
Abbas Al-NayiliDepartment of Chemistry, College of Education, University of Al-Qadisiyah, Al-Qadisiyah, Iraq.
Bassma M OleiwiDepartment of Chemistry, College of Education for Pure Sciences, Kerbala University, Kerbala, Iraq.
Amal J YoussefDepartment of Basic Sciences, College of Dentistry, Al-Qadisiyah University, Al-Qadisiyah, Iraq.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Organic synthesis plays a crucial role in achieving the principles of green chemistry by minimizing waste, utilizing cost-effective and abundant feedstocks, and enabling catalyst recyclability. In recent years, bio-based catalysis has emerged as a promising strategy due to its low environmental impact, reduced toxicity, and economic viability. Among various bio-derived materials, rice and its by-products have demonstrated significant potential as sustainable catalytic platforms. Owing to its rich composition of silica, carbon, and functionalizable organic matter, rice husk (RH) and rice straw ash (RSA) have been extensively explored for developing heterogeneous catalysts applicable in a wide range of organic transformations. This review highlights recent advances (2020-2025) in RH-based catalysis for green organic synthesis, covering diverse catalytic forms such as RH-activated carbon (RHAC), RH sulfonated carbon (SRH), RH silica (RHS), metal-doped silica, and RSA extracts. The discussed transformations include Knoevenagel condensation, Michael addition, Hantzsch synthesis, multicomponent cyclizations, Suzuki-Miyaura and Heck cross-couplings, Friedel-Crafts alkylation, benzylation, tert-butylation of aromatics. Emphasis is placed on the synthesis, functionalization, and catalytic mechanisms of rice-derived materials, as well as their reusability, efficiency under mild conditions, and alignment with green chemistry goals. This review aims to provide a comprehensive overview of the evolving landscape of rice-based biocatalysts in modern organic synthesis.

Indexed as

Chemistry Techniques, SyntheticGreen Chemistry TechnologyOrganic ChemicalsOryzaCatalysisOrganic ChemicalsBiocatalystsBiosilicaGreen catalystsOrganic synthesisRice husk

Identifiers

PMID41934562

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.