An efficient and new protocol for the Heck reaction using palladium nanoparticle‐engineered dibenzo‐18‐crown‐6‐ether/MCM‐41 nanocomposite in water
Sign Up to like & getrecommendations! Published in 2018 at "Applied Organometallic Chemistry"
DOI: 10.1002/aoc.4271
Abstract: Palladium nanoparticle-incorporated mesoporous organosilica (MCM-41-Crown.Pd) was synthesized via the grafting of dibenzo-18-crown-6-ether moieties on the MCM-41 surface, followed by reaction of the nanocomposite with palladium acetate and then its reduction in ethanol. The cavity of… read more here.
Keywords: palladium nanoparticle; crown ether; reaction; dibenzo crown ... See more keywords
Computational study of selectivity of dibenzo-18-crown-6-ether dimer for alkaline-earth divalent cations
Sign Up to like & getrecommendations! Published in 2020 at "Computational and Theoretical Chemistry"
DOI: 10.1016/j.comptc.2019.112671
Abstract: Abstract We performed a DFT calculation of the cationic selectivity for 2:1 complexes of two dibenzo-18-crown-6-ethers (DB18C6s) and one alkaline-earth cation with the M06-2X functional and IEFPCM/SMD solvation models. In Ba2+-(DB18C6)2 or Sr2+-(DB18C6)2, the ion… read more here.
Keywords: alkaline earth; ba2; selectivity; dibenzo crown ... See more keywords
4-formyl dibenzo-18-crown-6 grafted polyvinyl alcohol as anion exchange membranes for fuel cell
Sign Up to like & getrecommendations! Published in 2019 at "European Polymer Journal"
DOI: 10.1016/j.eurpolymj.2018.10.020
Abstract: Abstract 4-formyl dibenzo-18-crown-6 (FDB18C6) was synthesized through dibenzo-18-crown-6 (DB18C6), and it was added into polyvinyl alcohol (PVA) through acetal reaction to form a new type of membrane (FX%-P). Then the FX%-P membranes were immersed into… read more here.
Keywords: dibenzo crown; polyvinyl alcohol; formyl dibenzo; anion exchange ... See more keywords
Enthalpies of fusion, vaporisation and sublimation of crown ethers determined by thermogravimetry and differential scanning calorimetry
Sign Up to like & getrecommendations! Published in 2017 at "Thermochimica Acta"
DOI: 10.1016/j.tca.2016.03.013
Abstract: Abstract The phase change enthalpies of 18-crown-6 ether (18C6), dibenzo-18-crown-6 ether (DB18C6), dibenzo-24-crown-8 ether (DB24C8) and dibenzo-30-crown-10 ether (DB30C10), which are chemical structures that are of interest in supramolecular chemistry, were determined by thermogravimetry (TGA)… read more here.
Keywords: crown ether; scanning calorimetry; differential scanning; dibenzo crown ... See more keywords
Polystyrene/poly(dibenzo-18-crown-6) composite nanofibers for the selective adsorption of plasma catecholamines
Sign Up to like & getrecommendations! Published in 2017 at "RSC Advances"
DOI: 10.1039/c7ra00430c
Abstract: In this paper, 10 types of electrospun polystyrene (PS) nanofibers doped with poly(dibenzo-18-crown-6) (PDB18C6) were prepared and the ones which gave the best recovery of catecholamines – dopamine, norepinephrine and epinephrine from other interfering endogenous… read more here.
Keywords: adsorption; plasma; dibenzo crown; poly dibenzo ... See more keywords
Association of liquid-assisted grinding with aging accelerates the inherently slow slipping-on of a dibenzo-24-crown-8 over the N-hydroxysuccinimide ester of an ammonium-containing thread
Sign Up to like & getrecommendations! Published in 2019 at "RSC Advances"
DOI: 10.1039/c9ra05045k
Abstract: Very efficient slipping-on of the dibenzo-24-crown-8 over the NHS end of an ammonium-containing molecular axle was carried out through a solvent-less procedure. read more here.
Keywords: dibenzo crown; slipping dibenzo; ammonium containing; liquid assisted ... See more keywords
Ring rotation of ferrocene in interlocked molecules in single crystals†
Sign Up to like & getrecommendations! Published in 2021 at "Chemical Science"
DOI: 10.1039/d0sc06876d
Abstract: This work describes unique molecular motions of ferrocene-containing interlocked molecules observed by single-crystal X-ray crystallography. The rotational flexibility of ferrocene is achieved using combinations of ferrocene-tethered ammonium and 30-membered ring dibenzo-crown ether. By contrast, ferrocene… read more here.
Keywords: rotation ferrocene; ferrocene; dibenzo crown; interlocked molecules ... See more keywords
Synthesis and applications of (5-substituted benzimidazolo)-benzo-15-crown-5 and 4,4′-bis-benzimidazolo-dibenzo-15-crown-5 for the colorimetric detection of Au3+
Sign Up to like & getrecommendations! Published in 2019 at "Synthetic Communications"
DOI: 10.1080/00397911.2019.1599951
Abstract: AbSTRACT In the present work, we have reported the synthesis of benzimidazoles functionalized crown ether derivatives of 4-formyl benzo-15-crown-5/4,4′-diformyl dibenzo-15-crown-5 and substituted diamine pyridine using sulfamic acid as a catalyst in DMSO. These molecules are… read more here.
Keywords: benzo crown; dibenzo crown; applications substituted; benzimidazolo benzo ... See more keywords
Hydrogenation of Dibenzo-18-Crown-6 Ether Using γ-Al2O3 Supported Ru-Pd and Ru-Ni Bimetallic Nanoalloy Catalysts
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Chemical Reactor Engineering"
DOI: 10.1515/ijcre-2018-0049
Abstract: Abstract Ruthenium-palladium (Ru-Pd) and ruthenium-nickel (Ru-Ni) bimetallic nanoalloy particles with various metal compositions were synthesized by microwave irradiated (MWI) solvothermal technique using PVP (poly-N-vinyl-2-pyrrolidone) as capping agent and ethylene glycol as a solvent as well… read more here.
Keywords: dibenzo crown; crown ether; hydrogenation dibenzo; bimetallic nanoalloy ... See more keywords