In bio-refinery and other catalytic reactions, heterogeneous catalysts confer advantage over homogenous due to minimized recovery separation costs. However, templating surfactant solid support for the synthesis of ought consider their cheap sources environmentally friendliness sustainable use. Thus, with vision make process significantly benign, in present work, acids were synthesised from rene...

5-hydroxymethylfurfural (HMF), as one of the top ten important platform chemicals, can be used to produce 2,5-furandicarboxylic acid (FDCA), 2,5-dimethyl furan (DMF), levulinic acid, and other chemicals. An environmentally friendly system for synthesis sulfonated carbon materials from discarded masks has been proposed. A series mask-based solid catalysts (bMC-SO3H) were prepared by a simple two...

in this work, so3h-functionalizedphthalimide (sfp) as a so3h-containing solid acid is prepared by the reaction of phthalimide with chlorosulfonic acid, and characterized by ft-ir, 1h and 13c nmr, mass, tg, dtg, xrd and sem. then, it is utilized as a highly efficient, heterogeneous and green catalyst for the one-pot multi-component condensation of dimedone with arylaldehydes, β-ketoesters and am...

Lead detection for biological environments, aqueous resources, and medicinal compounds, rely mainly on either utilizing bulky lab equipment such as ICP-OES or ready-made sensors, which are based colorimetry with some limitations including selectivity low interference. Remote, rapid efficient of heavy metals in solutions at ppm sub-ppm levels have faced significant challenges that requires novel...

A SO3H-functionalized ionic liquid was used as an alternative to conventional inorganic acids in hydroxylamine stabilization, leading to the formation of a novel hydroxylamine ionic liquid salt that exhibits improved thermal stability and reactivity in the one-step, solvent-free synthesis of caprolactam in comparison with hydroxylamine hydrochloride and hydroxylamine sulfate.

Taking as a model the N-terminal folding of the cholecystokinin tyrosine-sulfated octapeptide [CCK-8; Asp-Tyr(SO3H)-Met-Gly-Trp-Met-Asp-Phe-NH2] deduced from conformational studies, two cyclic cholecystokinin (CCK) analogues were synthesized by conventional peptide synthesis: Boc-D-Asp-Tyr(SO3H)-Ahx-D-Lys-Trp-Ahx-Asp-Phe-NH2 [compound I (Ahx, 2-aminohexanoic acid)] and Boc-gamma-D-Glu-Tyr(SO3H)...

Postsynthetic modification can be used to introduce sulfonamide functionalities into MOF frameworks. Using sulfonyl chlorides as reactive intermediates, Cr-MIL-SO3H and CAU-1-NH2 have been further modified to give hitherto unknown functionalized MOFs in which a sulfonamide group is bound to the framework either by its N or its S atom.

We describe a bottom-up surface functionalization to design hybrid molecular coatings that tether biomembranes using wet chemistry. First, monolayer was formed by immersion in NH2-Ar-SO3H solution, allowing aryldiazonium salt radicals spontaneously bind it via strong C bonding. After formation of the air-stable and dense (–Ar-SO3H), subsequent activation used form highly reactive –Ar-SO2Cl grou...

The synthesis, electronic spectral, and photophysical properties of a new bithiophene derivative, (2,2′-bithiophene)-3,5,5′-trisulfonic acid, α2-SO3H, were investigated in organic or aqueous soluti...

A number of SO3H-functionalized solids (biochar, montmorillonites, carbon and halloysite nanotubes) has been studied as catalysts in the cascade Prins-Ritter reaction (-)-isopulegol with benzaldehyde acetonitrile for synthesis octahydro-2H-chromene amides (as 4R- 4S-isomers). high selectivity to these products at 30 °C presence H2O was observed on modified chlorosulfonic acid (CSA) reaching 84%...