Results 41 to 50 of about 5,810 (254)

Oxidation of benzoin catalyzed by oxovanadium (IV) schiff base complexes [PDF]

, 2013
BACKGROUND: The oxidative transformation of benzoin to benzil has been accomplished by the use of a wide variety of reagents or catalysts and different reaction procedures.
A McKillop, A Syamal, AP de Azevedo Marques, B Kaitner, D Ferri, DM Boghaei, DR Jensen, G Licini, H Petek, H Siegel, Hanna S Abbo, J Selbin, J Selbin, Jabbar S Hadi, JAL da Silva, K Ebitani, K Nakamoto, K Skobridis, KPC Vollhardt, LV Boas, M Goodgame, M Kirihara, M Mathew, MR Maurya, MR Maurya, MR Maurya, MR Maurya, Omar N Ali, P Reddy, PM Reis, Q-X Guo, R Dinda, RS Walmsley, S Bunce, S Kobayashi, S Mohebbi, S-W Hon, SA Tymonko, Salam JJ Titinchi, T Mallat, TA Alsalim, Tahseen A Alsalim, TK Venkatachalam, V Vergopoulos, VD Makwana, Z Luo   +45 more
core   +1 more source

Atroposelective Construction of Axially Chiral Tetraarylethenes Via NHC‐Catalyzed Desymmetrization

Advanced Science, EarlyView.
We report the first NHC‐catalyzed atroposelective synthesis of axially chiral TAEs via oxidative desymmetrization of prochiral TAE dialdehydes. This catalytic strategy operates under mild conditions and accommodates a broad range of phenolic and nitrogen nucleophiles, delivering diverse axially chiral TAEs in good yields and up to 99% ee.
Yang‐Ze Zheng, Ting‐Rui Luan, Ming‐Hao Song, Zhaofeng Sun, Chuan‐Jun Lu, Long‐Long Xi, Ren‐Rong Liu   +6 more
wiley   +1 more source

Trichloroisocyanuric acid, a New and Efficient Catalyst for the Synthesis of 2′- Aminobenzothiazolo-arylmethyl-2-naphthols

E-Journal of Chemistry, 2012
An efficient one-pot synthesis of 2′-aminobenzothiazolo-arylmethyl-2-naphthols is described. This involves the three-component reaction of β-naphthol, aromatic aldehydes and 2-aminobenzothiazole in the presence of a catalytic amount of ...
Limin Yang
doaj   +1 more source

Surface photochemistry of the herbicide napropamide. The role of the media and environmental factors in directing the fates of intermediates [PDF]

, 2008
The photochemical behaviour of the herbicide napropamide is studied on cellulose and silica surfaces, using steady-state and laser-flash diffuse ectance techniques.
Aguer, Aguer, Burgos, Chang, Da Silva, Da Silva, Das, do Rego, Donaldson, Edgar V. Bastos, Ferreira, Ferreira, Gu, Gu, Gu, Hara, Jiménez, José P. Da Silva, Koodanjeri, Leifer, Luis F. V. Ferreira, Lukeman, Maillard, Molokov, Mori, Pitchumani, Pulgarín, Richard G. Weiss, Shizuka, Sigman, Suchard, Syamala, Tomlin, Weiss, Xu, Yamaji   +35 more
core   +1 more source

A New Customizable Surfactant LLPS Strategy for Sustainable and Highly Efficient Radioactive Metal Ion Separation

Advanced Science, EarlyView.
A diluent‐free, customizable liquid–liquid phase separation (LLPS) platform enables highly efficient radioactive metal ion extraction and stripping. By encapsulating hydrophobic extractants into an ionic surfactant‐rich condensed phase, this LLPS system leverages synergistic electrostatic and coordination interactions.
Ruihan Yan, Yifu Hu, Wentao Wang, Zhi Cao, Meiwen Cao, Weifang Zheng, Guoan Ye, Taihong Yan   +7 more
wiley   +1 more source

Divers modes d'oxygénation des composés hydroxylés. Deuxième partie: cas des phénols et composés apparentés. Various Ways of Oxygenation Hydroxyl Compounds.Part Two: Case of Phenols and Related Compounds

Oil & Gas Science and Technology, 2006
Cet article examine les divers modes d'oxygénation des phénols, naphtols, anthranols et flavonols en mettant en évidence, dans la mesure du possible, la formation des peroxydes intermédiaires.Ainsi, en plus des éléments fournis dans d'autres publications
Karnojitzky V. J.
doaj   +1 more source

Three component, one-pot synthesis of amidoalkyl naphthols using polyphosphate ester under solvent-free conditions

Journal of Saudi Chemical Society, 2014
Amidoalkyl naphthols are synthesized via a simple, one-pot, three-component reaction between aldehydes, 2-naphthol and amides or ureas using polyphosphate ester (PPE) as a reaction mediator under solvent-free conditions in good to excellent yields.
Hassan Moghanian, Sattar Ebrahimi
doaj   +1 more source

A Catalytic Osmium Redox Couple Collapses Cancer Redox Balance

Advanced Science, EarlyView.
A stable Os(III)/Os(IV) redox couple is developed to disrupt the tumor cell redox balance by concurrently catalyzing ROS generation and GSH depletion. Osmium‐treated cells exhibit multiple cell death pathways, including apoptosis, ferroptosis, and immunogenic cell death.
Wan‐Qiong Huang, Tao Huang, Yiming Hao, Gui‐Feng Huang, Yi‐Lang Yan, Xin Fang, Ying Chen, Xiao‐Long Wei, Wai‐Lun Man, Wen‐Xiu Ni   +9 more
wiley   +1 more source

Comparison between Electrooxidation of 1-Naphthol and 2-Naphthol in Different Non-Aqueous Solvents and Suppression of Layer Growth of Polymers

Surfaces
The two naphthol isomers were investigated in different organic solvents by taking cyclic voltammograms, and fouling took place on a platinum electrode surface, except for dimethyl sulfoxide and dimethyl formamide. Studies in allyl alcohol rarely used in
László Kiss, Péter Szabó, Sándor Kunsági-Máté   +2 more
doaj   +1 more source

Synthesis and application of novel heterocyclic dyes based on 11-amino-13H-acenaphtho[1,2-e]pyridazino[3,2-b]-quinazoline-13-one [PDF]

Journal of the Serbian Chemical Society, 2002
A new fused heterocyclic compound, 11-amino-13H-acenaphtho[1,2-e]pyridazino [3,2-b]quinazolin-13-one was synthesized and used to prepare a novel series of heterocyclic mono azo dyes by coupling with various naphthols.
Patel Vijay J., Patel Manish P., Patel Ranjan G.   +2 more
doaj   +1 more source