Articles with "toluenesulfonic acid" as a keyword



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Preparation, characterization and application of rod-like chitin nanocrystal by using p-toluenesulfonic acid/choline chloride deep eutectic solvent as a hydrolytic media.

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Published in 2019 at "Carbohydrate polymers"

DOI: 10.1016/j.carbpol.2019.02.092

Abstract: Chitin nanocrystal (ChiNC) was fabricated based on p-toluenesulfonic acid -choline chloride deep eutectic solvent treatment. The obtained ChiNC was about 12-44 nm in width and 206-399 nm in length. The crystalline structure and the functional groups of… read more here.

Keywords: chloride deep; choline chloride; toluenesulfonic acid; acid choline ... See more keywords
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Characterization of the major isomers of substituted tetrahydro-2H-pyrans from 1,3,5-triarylpentane-1,5-diols by p-toluenesulfonic acid treatment

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Published in 2018 at "Journal of Molecular Structure"

DOI: 10.1016/j.molstruc.2017.12.030

Abstract: Abstract This article describes the stereodivergent formation of 2,4,6-triaryl-tetrahydro- 2H -pyrans from 1,3,5-triarylpentane-1,5-diols in the presence of the catalytic amount of p -toluenesulfonic acid and their characterization. read more here.

Keywords: toluenesulfonic acid; triarylpentane diols; pyrans triarylpentane; tetrahydro pyrans ... See more keywords
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Removal of p-toluenesulfonic acid from wastewater using a filtration-enhanced electro-Fenton reactor

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Published in 2022 at "RSC Advances"

DOI: 10.1039/d2ra04921j

Abstract: Rapid global industrialization accompanies the discharge of industrial wastewater. p-Toluenesulfonic acid (PTSA), a kind of aromatic sulfonate that belongs to the refractory organic pollutant, is one of the most widely used chemicals in pharmaceutical, dye,… read more here.

Keywords: toluenesulfonic acid; fenton; wastewater; filtration enhanced ... See more keywords
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p-Toluenesulfonic Acid-Catalyzed Reaction of Phthalaldehydic Acids with Difluoroenoxysilanes: Access to 3-Difluoroalkyl Phthalides

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Published in 2021 at "Synthesis"

DOI: 10.1055/a-1581-2408

Abstract: A convenient approach for the synthesis of 3-difluoroalkyl phthalides has been developed from phthalaldehydic acids and difluoroenoxysilanes by using relatively inexpensive p-toluenesulfonic acid monohydrate (PTSA) as a catalyst. A series of 3-difluoroalkyl phthalides and cyclic… read more here.

Keywords: difluoroalkyl phthalides; difluoroalkyl; toluenesulfonic acid; phthalaldehydic acids ... See more keywords
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First sonochemical, simple and solvent-free synthesis of chiral tert-butanesulfinimines using silica supported p-toluenesulfonic acid

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Published in 2019 at "Synthetic Communications"

DOI: 10.1080/00397911.2018.1540047

Abstract: Abstract A solvent-free, versatile procedure has been developed for the effective synthesis of tert-butanesulfinylimines of a variety of aldehydes using chiral tert-butanesulfinamides under green, sonochemical conditions. This method utilizes silica supported p-toluenesulfonic acid (pTSA·SiO2) as… read more here.

Keywords: supported toluenesulfonic; toluenesulfonic acid; tert; solvent free ... See more keywords
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Brønsted Acidic Deep Eutectic Solvent Based on Imidazole and p-Toluenesulfonic Acid Intensified Prins Condensation of Styrene with Formaldehyde

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Published in 2021 at "Chemistry Letters"

DOI: 10.1246/cl.200877

Abstract: Bronsted acidic deep eutectic solvent (DES) formed from 1:2 mole ratio of imidazole (Im) and p-toluenesulfonic acid (PTSA) [Im:2PTSA] was applied for the first time to synthesize 4-phenyl-1,3-dioxa... read more here.

Keywords: imidazole toluenesulfonic; deep eutectic; acidic deep; eutectic solvent ... See more keywords
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p-Toluenesulfonic Acid Coated Natural Phosphate as an Efficient Catalyst for the Synthesis of 2-Substituted Benzimidazole

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Published in 2018 at "Journal of Chemical Research"

DOI: 10.3184/174751918x15420201703363

Abstract: 2-Substituted benzimidazoles are selectively synthesised in high yields via the condensation of o-phenylenediamine derivatives with aldehyde derivatives using catalytic amount of p-toluenesulfonic acid coated natural phosphate (NP/PTSA) under mild conditions. The use of NP/PTSA as… read more here.

Keywords: acid coated; coated natural; toluenesulfonic acid; natural phosphate ... See more keywords
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Febuxostat–p-Toluenesulfonic Acid Multi-Component Crystal: Characterization, Crystal Growth and Elucidation of the Salt/Co-Crystal Nature

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Published in 2023 at "Crystals"

DOI: 10.3390/cryst13050836

Abstract: The multi-component solid form of febuxostat (FEB) with p-toluenesulfonic acid was synthesized by solvent-drop grinding and cooling-evaporative crystallization and characterized by powder X-ray diffraction (XRPD), thermogravimetry (TGA), differential scanning calorimetry (DSC), and infrared spectroscopy (FT-IR).… read more here.

Keywords: toluenesulfonic acid; component; salt crystal; multi component ... See more keywords