Lewis acid‐promoted C–H Chalcogenation of Arenes and Heteroarenes
Sign Up to like & getrecommendations! Published in 2024 at "European Journal of Organic Chemistry"
DOI: 10.1002/ejoc.202400894
Abstract: An efficient catalytic system employing TMS•OTf for the regioselective thiolation of electron‐rich arenes with sulfonyl hydrazides has been developed. The reaction occurs in a solvent mixture of dichloroethane and trifluoroethanol under mild conditions, with the… read more here.
Keywords: chemistry; acid promoted; lewis acid; arenes heteroarenes ... See more keywords
Acid promoted Ni/NiO monolithic electrode for overall water splitting in alkaline medium
Sign Up to like & getrecommendations! Published in 2017 at "Science China Materials"
DOI: 10.1007/s40843-017-9089-y
Abstract: Exploring and designing bi-functional catalysts with earth-abundant elements that can work well for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in alkaline medium are of significance for producing clean fuel to relieve… read more here.
Keywords: alkaline medium; acid promoted; monolithic electrode; electrode ... See more keywords
Lewis acid promoted anomerisation of alkyl O- and S-xylo-, arabino- and fucopyranosides.
Sign Up to like & getrecommendations! Published in 2019 at "Carbohydrate research"
DOI: 10.1016/j.carres.2018.11.010
Abstract: Pentopyranoside and 6-deoxyhexopyranosides, such as those from d-xylose, l-arabinose and l-fucose are components of natural products, oligosaccharides or polysaccharides. Lewis acid promoted anomerisation of some of their alkyl O- and S-glycopyranosides is reported here. SnCl4… read more here.
Keywords: promoted anomerisation; acid promoted; lewis acid; anomerisation alkyl ... See more keywords
Lewis acid-promoted cascade reaction for the synthesis of Michael acceptors and its application in a dimerization reaction
Sign Up to like & getrecommendations! Published in 2017 at "Tetrahedron"
DOI: 10.1016/j.tet.2017.05.017
Abstract: Abstract An efficient Lewis acid-promoted cascade reaction with dimethyl sulfoxide as a methylene source for the synthesis of Michael acceptors is reported. The key to developing this procedure is the selection of a mild base… read more here.
Keywords: michael; lewis acid; cascade reaction; promoted cascade ... See more keywords
Influence of acyl groups on glucopyranoside reactivity in Lewis acid promoted anomerisation
Sign Up to like & getrecommendations! Published in 2018 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2018.05.076
Abstract: Abstract Lewis acid promoted anomerisation has potential in O- or S-glycoside synthesis. Herein, the anomerisation kinetics of thirty-one β- d -glucopyranosides was determined to determine how particular acyl protecting groups and their location influence reactivity… read more here.
Keywords: promoted anomerisation; acid promoted; lewis acid; reactivity ... See more keywords
Brønsted acid promoted C–C bond formation between indolylmethyl electrophiles and ketene dithioacetals: Diastereoselective synthesis of highly functionalized cyclopenta[b]indoles
Sign Up to like & getrecommendations! Published in 2020 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2020.152349
Abstract: Abstract A Bronsted-acid promoted method for the construction of carbon-carbon bonds between α-substituted indolylmethyl electrophiles and ketene dithioacetals is described. This strategy was utilized to access 2,3-disubstituted cyclopenta[b]indoles via formal [3+2] cycloadditions. Readily available indolyl… read more here.
Keywords: carbon; indolylmethyl electrophiles; cyclopenta indoles; acid promoted ... See more keywords
Acid-promoted Ir-La-S/AC-catalyzed methanol carbonylation on single atomic active sites
Sign Up to like & getrecommendations! Published in 2018 at "Chinese Journal of Catalysis"
DOI: 10.1016/s1872-2067(18)63019-0
Abstract: Abstract Highly active Ir-La-S/AC catalyst was successfully prepared by co-impregnation of an activated carbon (AC) carrier with a sulfuric acid solution of Ir and La species and compared with a traditionally prepared Ir-La/AC catalyst. High… read more here.
Keywords: methanol; promoted catalyzed; carbonylation; single atomic ... See more keywords
Oxalic Acid-Promoted Pollutant Attenuation by Hematite via Hydrogen Radical Generation under Aerobic Conditions.
Sign Up to like & getrecommendations! Published in 2025 at "Environmental science & technology"
DOI: 10.1021/acs.est.5c08129
Abstract: Despite oxalic acid (OA) is widely recognized for enhancing pollutant degradation by minerals via ligand-promoted electron transfer and molecular oxygen (O2) activation, its comprehensive mechanistic contributions are not yet fully understood. Herein, we uncover a… read more here.
Keywords: acid promoted; pollutant attenuation; promoted pollutant; attenuation hematite ... See more keywords
Lewis Acid Promoted Vicinal Oxytrifluoromethylselenolation of Alkenes.
Sign Up to like & getrecommendations! Published in 2023 at "Organic letters"
DOI: 10.1021/acs.orglett.3c00846
Abstract: Herein, we have developed a metal-free, Lewis acid promoted vicinal oxytrifluoromethylselenolation of alkenes using trifluoromethyl selenoxides as electrophilic trifluoromethylselenolation reagents and alcohols as nucleophiles. With less steric and good nucleophilic solvents (such as ethanol and… read more here.
Keywords: oxytrifluoromethylselenolation alkenes; oxytrifluoromethylselenolation; acid promoted; promoted vicinal ... See more keywords
Lewis Acid Promoted Deprotection of Benzylidene Acetals and p-Methoxybenzyl Ethers with Mercaptoacid Acid as Scavenger.
Sign Up to like & getrecommendations! Published in 2023 at "Organic letters"
DOI: 10.1021/acs.orglett.3c00958
Abstract: We demonstrate a new and high-yielding method for removal of benzylidene acetals and para-methoxybenzyl ethers under catalytic conditions (BF3:OEt2 orFeCl3, 10 mol%) with mercaptoacetic acid as a scavenger. The reaction coproducts are converted to water-soluble… read more here.
Keywords: benzylidene acetals; acid promoted; methoxybenzyl ethers; lewis acid ... See more keywords
Acid-Promoted Cyclization of α-Azidobenzyl Ketones through C═N Bond Formation: Synthesis of 6-Substituted Quinoline Derivatives.
Sign Up to like & getrecommendations! Published in 2024 at "Organic letters"
DOI: 10.1021/acs.orglett.3c03697
Abstract: An acid-promoted cyclization of α-azidobenzyl ketones has been developed for the synthesis of 6-substituted quinoline derivatives. A variety of synthetically useful 6-OTf or -OMs quinoline derivatives were obtained in moderate to good yields. The reaction… read more here.
Keywords: azidobenzyl ketones; promoted cyclization; acid promoted; cyclization azidobenzyl ... See more keywords