Results 31 to 40 of about 39,066 (297)

Gold(I)-catalyzed 6-endo hydroxycyclization of 7-substituted-1,6-enynes

Beilstein Journal of Organic Chemistry, 2013
The cyclization of o-(alkynyl)-3-(methylbut-2-enyl)benzenes, 1,6-enynes having a condensed aromatic ring at C3–C4 positions, has been studied under the catalysis of cationic gold(I) complexes. The selective 6-endo-dig mode of cyclization observed for the
Ana M. Sanjuán, Alberto Martínez, Patricia García-García, Manuel A. Fernández-Rodríguez, Roberto Sanz   +4 more
doaj   +1 more source

The impact of metal dopants on the properties of nZVI: a theoretical study

JPhys Materials
The substitution of Fe with metal dopants shows potential for enhancing the wastewater remediation performance of nanoscale zero-valent iron (nZVI). However, the specific roles and impacts of these dopants remain unclear.
Jessica Jein White, Jack Jon Hinsch, William W Bennett, Yun Wang   +3 more
doaj   +1 more source

Population and hierarchy of active species in gold iron oxide catalysts for carbon monoxide oxidation

Nature Communications, 2016
The identity of active species in supported gold catalysts for low-temperature carbon monoxide oxidation remains an open question. Here, the authors look at the catalytic behaviours of supported catalysts prepared under different conditions and correlate
Qian He, Simon J. Freakley, Jennifer K. Edwards, Albert F. Carley, Albina Y. Borisevich, Yuki Mineo, Masatake Haruta, Graham J. Hutchings, Christopher J. Kiely   +8 more
doaj   +1 more source

Reactant-induced photoactivation of in situ generated organogold intermediates leading to alkynylated indoles via Csp 2-Csp cross-coupling

Nature Communications, 2022
Dual photo- and metal-catalysis is generally not well-understood when the metal catalyst is a gold complex. Here the authors show that a variation of a known metallaphotoredox annulation is possible without an added photocatalyst, proceeding putatively ...
Fen Zhao, Mehdi Abdellaoui, Wided Hagui, Maria Ballarin-Marion, Jérôme Berthet, Vincent Corcé, Stéphanie Delbaere, Héloïse Dossmann, Agathe Espagne, Jérémy Forté, Ludovic Jullien, Thomas Le Saux, Virginie Mouriès-Mansuy, Cyril Ollivier, Louis Fensterbank   +14 more
doaj   +1 more source

Catalysis by Gold Nanoparticles [PDF]

Gold Bulletin, 2002
Gold catalysts have superior activity in CO and other oxidations at low temperatures. Both a small (~ 5nm) particle size and the presence of a partly reducible oxide (ceria or a transition metal oxide) have a beneficial effect on the catalyst performance.
Grisel, Ruud, Weststrate, Kees-Jan, Gluhoi, Andrea, Nieuwenhuys, Bernard E   +3 more
openaire   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Dataset of polyoxometalate-assisted N-heterocyclic carbene gold(I) complexes

Data in Brief, 2019
The present paper is the Supplemental materials for our original paper entitled “highly active, homogeneous catalysis by polyoxometalate-assisted N-heterocyclic carbene gold(I) complexes for hydration of diphenylacetylene.
Kenji Nomiya, Yuichi Murata, Yuta Iwasaki, Hidekazu Arai, Takuya Yoshida, Noriko Chikaraishi Kasuga, Toshiaki Matsubara   +6 more
doaj   +1 more source

Supramolecular Ligands in Gold(I) Catalysis

, 2013
A supramolecular ligand-template strategy is applied to gold(I) catalysis. The supramolecular ligands, formed from a phosphoramidite backbone and two templates, display different regioselectivity in the hydroalkoxylation of allenes compared to non ...
Reek, J.N.H., Rintjema, J., Bellini, R., Gramage-Doria, R.   +3 more
core   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Special Issue: Gold Nanoparticles for Catalytic Applications

Applied Sciences, 2019
Catalysis by gold nanoparticles is a topic of increasing interest [...]
Sónia A. C. Carabineiro
doaj   +1 more source