Asymmetric Fluorofunctionalizations with Carboxylate-Based Phase-Transfer Catalysts.
Sign Up to like & getrecommendations! Published in 2023 at "Chemical record"
DOI: 10.1002/tcr.202200285
Abstract: Fluorine is an attractive element in the field of pharmaceutical and agrochemical chemistry due to its unique properties. Considering the chiral environment in nature, where enantiomers often show different biological activities, the introduction of fluorine… read more here.
Keywords: phase transfer; carboxylate based; transfer catalysts; based phase ... See more keywords
Methylation of 5-nitrotetrazole sodium salt under phase-transfer catalysis conditions
Sign Up to like & getrecommendations! Published in 2017 at "Chemistry of Heterocyclic Compounds"
DOI: 10.1007/s10593-017-2118-5
Abstract: The alkylation of 5-nitrotetrazole sodium salt with dimethyl sulfate was studied in a two-phase water–dichloromethane system in the presence of tetrabutylammonium bromide as a phase-transfer catalyst. The reaction produced a mixture of regioisomers – 1-methyl-… read more here.
Keywords: phase; phase transfer; transfer catalysis; sodium salt ... See more keywords
Phase Transfer Induced Enhanced Stability of Monolayer Protected Silver Quantum Clusters
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DOI: 10.1007/s10876-017-1299-5
Abstract: Mercaptosuccinic acid (MSA) protected silver clusters (Ag@MSA) were synthesized and their stability was monitored both in an aqueous and in a toluene phase. In the former, the pH of the cluster solution was tuned between… read more here.
Keywords: phase; protected silver; phase transfer; toluene phase ... See more keywords
Preparation of nanoscale organosols and hydrosols via the phase transfer route
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Nanoparticle Research"
DOI: 10.1007/s11051-017-4095-0
Abstract: AbstractAqueous reactions support the preparation of a wide variety of inorganic nanoparticles (NPs), starting from relatively inexpensive precursors. However, the long-term stability of hydrosols is sensitive to changes in water chemistry, especially at high NP… read more here.
Keywords: phase transfer; transfer; route; preparation ... See more keywords
Phase-transfer Tsuji—Trost allylation of CH-acids with the assistance of palladium complexes with bidentate PIII—N—PIII ligands
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DOI: 10.1007/s11172-017-1788-6
Abstract: The Tsuji—Trost allylation of CH acids, in particular, those of the YCH2CO2Et type (Y = CO2Et, C(O)Me, CN), with allylic acetates in the K2CO3—DMF system in the presence of palladium catalysts with ligands RN(PPh2)2 (R… read more here.
Keywords: trost allylation; phase transfer; tsuji trost; allylation acids ... See more keywords
Multi-site phase transfer catalyzed radical polymerization of methyl methacrylate in mixed aqueous–organic medium: a kinetic study
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DOI: 10.1007/s40090-017-0125-0
Abstract: This work establishes the kinetics of radical polymerization of methyl methacrylate in an aqueous–organic two-phase system using 1,4-bis (triethylmethylammonium) benzene dichloride (TEMABDC) as multi-site phase transfer catalyst and potassium peroxydisulphate (K2S2O8) as water-soluble initiator at… read more here.
Keywords: polymerization methyl; phase; polymerization; radical polymerization ... See more keywords
Biphasic reaction of glycerol and oleic acid: Byproducts formation and phase transfer autocatalytic effect
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DOI: 10.1016/j.cattod.2019.02.011
Abstract: Abstract This work investigates two new aspects of the biphasic esterification reaction of glycerol (G) and oleic acid (A), i.e. the formation of several oxidation/dehydration co-products and the effect of the ester products as phase… read more here.
Keywords: phase transfer; oleic acid; reaction; glycerol ... See more keywords
Synergistic combination of graphitic C3N4 and polyoxometalate-based phase-transfer catalyst for highly efficient reductant-free aerobic hydroxylation of benzene
Sign Up to like & getrecommendations! Published in 2018 at "Chemical Engineering Journal"
DOI: 10.1016/j.cej.2017.10.083
Abstract: Abstract A facilely recyclable catalytic system towards liquid-phase reductant-free aerobic oxidation of benzene to phenol is built by simultaneously using graphitic carbon nitride (C3N4) and Ch5PMoV2. Especially, the hybrid Ch5PMoV2 is regarded as a temperature-controlled… read more here.
Keywords: phase; phase transfer; c3n4; reductant free ... See more keywords
Phase transfer agents facilitate the production of superinsulating silica aerogel powders by simultaneous hydrophobization and solvent- and ion-exchange
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DOI: 10.1016/j.cej.2019.122421
Abstract: Abstract A fast and simple, one-step synthesis for the preparation of silica aerogel powders is reported. A waterglass based sol was prepared without prior ion-exchange and stirred with an immiscible organic phase (heptane) that contains… read more here.
Keywords: silica aerogel; phase transfer; hydrophobization; phase ... See more keywords
Environmentally-friendly dewatering of sewage sludge: A novel strategy based on amphiphilic phase-transfer induced by recoverable organic solvent
Sign Up to like & getrecommendations! Published in 2021 at "Chemical Engineering Journal"
DOI: 10.1016/j.cej.2020.128212
Abstract: Abstract This study proposed a novel strategy for sludge dewaterability improvement by eliminating the solid-liquid affinity through the polarity regulation of liquid phase. Initial screening experiments with different types of organic amendments (e.g., polar solvents,… read more here.
Keywords: sludge; novel strategy; phase; phase transfer ... See more keywords
Phase-transfer method synthesis hydroxyethyl cellulose lauryl ether
Sign Up to like & getrecommendations! Published in 2019 at "Colloids and Surfaces A: Physicochemical and Engineering Aspects"
DOI: 10.1016/j.colsurfa.2018.11.055
Abstract: Abstract This article provided a phase-transfer method to synthesize hydrophobic modify HEC with 1-bromododecane (1-BD). The synthesis of hydroxyethyl cellulose lauryl ether (HECLE) by an etherification reaction between hydroxyethyl cellulose (HEC) and 1-bromododecane (1-BD) using… read more here.
Keywords: cellulose lauryl; hydroxyethyl cellulose; phase transfer; synthesis hydroxyethyl ... See more keywords