Heterogeneous organic reactions in the presence of poly (vinyl pyridine) and its derivatives as catalyst or reagent
Polymer-supported reagents and catalysts have been abundantly employed in organic
reactions. In most cases, they are heterogeneous and re-coverable. The most commonly …
reactions. In most cases, they are heterogeneous and re-coverable. The most commonly …
Succinimide-N-sulfonic acid: An efficient catalyst for the synthesis of xanthene derivatives under solvent-free conditions
A mild, simple and convenient procedure for the synthesis of xanthene derivatives is
described via three component condensation of aldehydes with 2-naphthol, 1, 3 …
described via three component condensation of aldehydes with 2-naphthol, 1, 3 …
Catalytic manufacture and characteristic valuation of biodiesel-biojet achieved from Jatropha curcas and waste cooking oils over chemically modified montmorillonite …
AA Altalhi, EA Mohamed, SM Morsy… - Journal of Molecular …, 2021 - Elsevier
Montmorillonite clay was chemically modified by grafting of 3-mercaptopropyl trimethoxy
silane on the clay surface, followed by sulfonation of the terminal thiol groups. The chemical …
silane on the clay surface, followed by sulfonation of the terminal thiol groups. The chemical …
Mesoporous ionically tagged cross-linked poly (vinyl imidazole) s as novel and reusable catalysts for the preparation of N-heterocycle spiropyrans
Herein, two novel mesoporous cross-linked poly (vinyl imidazole) s with sulfonic acid
tags,[PVI-SO3H] Cl (1) and [PVI-SO3H] FeCl4 (2), were prepared and characterized by a …
tags,[PVI-SO3H] Cl (1) and [PVI-SO3H] FeCl4 (2), were prepared and characterized by a …
1, 3-Disulfonic acid imidazolium hydrogen sulfate as an efficient and reusable ionic liquid catalyst for the N-Boc protection of amines
1, 3-Disulfonic acid imidazolium hydrogen sulfate is easily prepared and used as an efficient
and recyclable ionic liquid for the N-Boc protection of amines at room temperature and neat …
and recyclable ionic liquid for the N-Boc protection of amines at room temperature and neat …
Synthesis and Structure-Electrochemical Property Relationships of Hybrid Imidazole-Based Proton Conductors for Medium-Temperature Anhydrous Fuel Cells
Medium-temperature anhydrous operation (above 120° C) of polymer electrolyte membrane
fuel cells (PEMFCs) has been extensively investigated, particularly for heavy-duty fuel cell …
fuel cells (PEMFCs) has been extensively investigated, particularly for heavy-duty fuel cell …
Poly (N-vinylimidazole) as an efficient catalyst for acetylation of alcohols, phenols, thiols and amines under solvent-free conditions
NG Khaligh - RSC advances, 2013 - pubs.rsc.org
Poly (N-vinylimidazole) is able to promote instantaneous quantitative acetylation of a variety
of functionalized alcohols, phenols, thiols and amines with acetic anhydride at room …
of functionalized alcohols, phenols, thiols and amines with acetic anhydride at room …
Introduction of N-sulfonic acid poly (4-vinylpyridinum) chloride as an efficient and reusable catalyst for the chemoselective 1, 1-diacetate protection and deprotection of …
F Shirini, OG Jolodar - Journal of Molecular Catalysis A: Chemical, 2012 - Elsevier
N-sulfonic acid poly (4-vinylpyridinium) chloride is easily prepared by the reaction of poly (4-
vinylpyridine) with neat chlorosulfonic acid. This reagent can be used as an efficient catalyst …
vinylpyridine) with neat chlorosulfonic acid. This reagent can be used as an efficient catalyst …
[HTML][HTML] Ultrasound-assisted one-pot synthesis of substituted coumarins catalyzed by poly (4-vinylpyridinium) hydrogen sulfate as an efficient and reusable solid acid …
NG Khaligh - Ultrasonics sonochemistry, 2013 - Elsevier
Poly (4-vinylpyridinium) hydrogen sulfate solid acid was found to be efficient catalyst for
synthesis of substituted coumarins via Pechmann reaction using ultrasound irradiation at …
synthesis of substituted coumarins via Pechmann reaction using ultrasound irradiation at …
[HTML][HTML] Introduction of poly (4-vinylpyridinium) perchlorate as a new, efficient, and versatile solid acid catalyst for one-pot synthesis of substituted coumarins under …
Poly (4-vinylpyridinium) perchlorate, is a supported, recyclable, eco-benign catalyst for
synthesis of substituted coumarins via Pechmann reaction using ultrasound irradiation at …
synthesis of substituted coumarins via Pechmann reaction using ultrasound irradiation at …