ArticleMolecules (Basel, Switzerland)2013
Chitosan based heterogeneous catalyses: chitosan-grafted-poly(4-vinylpyridne) as an efficient catalyst for Michael additions and alkylpyridazinyl carbonitrile oxidation.
Article in Molecules (Basel, Switzerland), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 46 citations in OpenAlex.
- Bombyx Mori Silk Fibroin as a Sustainable Organocatalyst for Diastereoselective Michael Additions.ChemSusChem · 2025Article
- Magnet-responsive choline carbomer ionogels as a versatile and recyclable catalyst for one-pot synthesis of benzopyran in water.Scientific reports · 2023Article
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- Efficient, Recyclable, and Heterogeneous Base Nanocatalyst for Thiazoles with a Chitosan-Capped Calcium Oxide Nanocomposite.Polymers · 2022Article
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- Bringing Homogeneous Iron Catalysts on the Heterogeneous Side: Solutions for Immobilization.Molecules (Basel, Switzerland) · 2021Review
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- Chitosan-MgO Nanocomposite: One Pot Preparation and Its Utility as an Ecofriendly Biocatalyst in the Synthesis of Thiazoles and [1,3,4]thiadiazoles.Nanomaterials (Basel, Switzerland) · 2018Article
- O-Carboxymethyl Chitosan Supported Heterogeneous Palladium and Ni Catalysts for Heck Reaction.Molecules (Basel, Switzerland) · 2017Article
- A novel four- and pseudo-five-component reaction: unexpected efficient one-pot synthesis of 4H-thiopyran derivatives.Molecular diversity · 2016Article
Corrections and comments
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Authors and funding
2 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Chitosan-grafted-poly(4-vinylpyridine) (Cs-PVP) copolymers could be synthesized under heterogeneous conditions in presence of a potassium persulfate and sodium sulfite redox system. The synthesized graft copolymer could be utilized effectively, in the form of beads, as an efficient catalyst for Michael additions of active methylenes to functionally substituted alkenes. Moreover, methyl moiety oxidation in methyl pyridazinyl carbonitriles by H₂O₂ in the presence of chitosan-g-polyvinyl pyridine-supported iron (III) complex, Cs-PVP/Fe, could be affected. A variety of pyrans, naphthopyrans, and thiopyrans could be synthesized efficiently in the presence of these graft copolymer beads by novel catalytic routes. These polymeric catalysts could be used instead of the old toxic commercial organic basic catalysts, piperidine or pyridine, and could be readily isolated from the reaction mixture and recycled several times without significant loss of catalytic activity.
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