810669-72-8Relevant academic research and scientific papers
Highly efficient AgNO3-catalyzed approach to 2-(benzo[d]azol-2-yl)phenols from salicylaldehydes with 2-aminothiophenol, 2-aminophenol and benzene-1,2-diamine
He, Xinwei,Wu, Yuhao,Jin, Wenjing,Wang, Xiaoshun,Wu, Cong,Shang, Yongjia
, (2018/02/13)
A new, convenient and efficient AgNO3-catalyzed strategy for the preparation of 2-(benzo[d]azol-2-yl)phenol derivatives in good to excellent yields (63–98%) is described. The reaction proceeds via condensation/intramolecular nucleophilic addition/oxidation process between substituted salicylaldehydes and 2-aminothiophenol, 2-aminophenol or benzene-1,2-diamine under mild reaction conditions. Notably, this reaction utilizes cheap AgNO3 as a readily available and low-cost benign oxidant at low catalyst loadings with excellent functional group tolerance.
A bioinspired construct that mimics the proton coupled electron transfer between P680?+ and the Tyrz-his190 pair of photosystem II
Moore, Gary F.,Hambourger, Michael,Gervaldo, Miguel,Poluektov, Oleg G.,Rajh, Tijana,Gust, Devens,Moore, Thomas A.,Moore, Ana L.
supporting information; experimental part, p. 10466 - 10467 (2009/02/05)
A bioinspired hybrid system, composed of colloidal TiO2 nanoparticles surface modified with a photochemically active mimic of the PSII chlorophyll-Tyr-His complex, undergoes photoinduced stepwise electron transfer coupled to proton motion at the phenolic site. Low temperature electron paramagnetic resonance studies reveal that injected electrons are localized on TiO2 nanoparticles following photoexcitation. At 80 K, 95% of the resulting holes are localized on the phenol moiety and 5% are localized on the porphyrin. At 4.2 K, 52% of the holes remain trapped on the porphyrin. The anisotropic coupling tensors of the phenoxyl radical are resolved in the photoinduced D-band EPR spectra and are in good agreement with previously reported g-tensors of tyrosine radicals in photosystem II. The observed temperature dependence of the charge shift is attributed to restricted nuclear motion at low temperature and is reminiscent of the observation of a trapped high-energy state in the natural system. Electrochemical studies show that the phenoxyl/phenol couple of the model system is chemically reversible and thermodynamically capable of water oxidation. Copyright
PHENOL-HETEROCYCLIC LIGANDS, METAL COMPLEXES, AND THEIR USES AS CATALYSTS
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Page/Page column 78-79, (2010/11/08)
Ligands, compositions, and metal-ligand complexes that incorporate phenol-heterocyclic compounds are disclosed that are useful in the catalysis of transformations such as the polymerization of monomers into polymers. The catalysts have high performance characteristics, including high comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts particularly polymerize styrene to form polystyrene.
Phenolate and phenoxyl radical complexes of Co(II) and Co(III)
Benisvy, Laurent,Bill, Eckhard,Blake, Alexander J.,Collison, David,Davies, E. Stephen,Garner, C. David,Guindy, Christina I.,McInnes, Eric J. L.,McArdle, Graeme,McMaster, Jonathan,Wilson, Claire,Wolowska, Joanna
, p. 3647 - 3653 (2007/10/03)
The new phenol-imidazole pro-ligands RLH react with Co(BF 4)2·6H2O in the presence of Et 3N to form the corresponding [CoII(RL) 2] compound (R = Ph (1), PhOMe (2), or
