Results 31 to 40 of about 7,590 (235)

Isoenzyme- and Allozyme-Specific Inhibitors: 2,20-Dihydroxybenzophenones and Their Carbonyl N-Analogues that Discriminate between Human Glutathione Transferase A1-1 and P1-1 Allozymes [PDF]

, 2015
The selectivity of certain benzophenones and their carbonyl N-analogues was investigated towards the human GSTP1-1 allozymes A, B and C involved in MDR. The allozymes were purified from extracts derived from E.
Clonis, Yannis D., Eliopoulos, Elias E., Labrou, Nikolaos E., Pouliou, Foteini M., Thireou, Trias N., Tsoungas, Petros G.   +5 more
core   +1 more source

Transition-metal-free trifluoromethylthiolation–acylation of arynes by insertion into the C–S bonds

Green Synthesis and Catalysis, 2021
An efficient procedure to access to ortho-SCF3 substituted benzophenones from arynes and trifluoromethylthioesters has been developed under transition-metal free conditions. This difunctionalization process involves the first insertion of arynes into the
Chengyao Kimmy Cao, Evgeny Tretyakov, Chao Chen   +2 more
doaj   +1 more source

An improved and general synthesis of monomers for incorporating trityl linker groups into polystyrene synthesis supports [PDF]

, 2004
A straightforward synthesis of trityl alcohols in which one of the aryl rings is substituted with a vinyl group is presented. The synthesis of the alcohols involves the direct addition of the Grignard reagent prepared from 4-bromostyrene to substituted ...
Choi, MKW, Toy, PH
core   +1 more source

Chemical Upcycling of Nitrile Butadiene Rubbers to Polyamines and Polyols by Chemoselective Catalytic Hydrogenation

Angewandte Chemie, EarlyView.
We demonstrate here the transformation of NBR (Nitrile butadiene rubber) including post‐consumer waste sourced from nitrile gloves and o‐rings into polyamines and polyols via ruthenium catalyzed hydrogenation. ABSTRACT We report here two new approaches for the chemical recycling/upcycling of nitrile butadiene rubber (NBR) to make either polyamines or ...
Alejandra Sophia Lozano Perez, Raymundo Marcial‐Hernandez, Harini Sampathkumar, Oluchi Emenike, Ketan Pancholi, Claire N. Brodie, Daniel M. Dawson, Amit Kumar   +7 more
wiley   +2 more sources

2,20-Dihydroxybenzophenones and their carbonyl N-analogues as inhibitor scaffolds for MDR-involved human glutathione transferase isoenzyme A1-1 [PDF]

, 2014
The MDR-involved human GSTA1-1, an important isoenzyme overexpressed in several tumors leading to chemotherapeutic-resistant tumour cells, has been targeted by 2,2′-dihydroxybenzophenones and some of their carbonyl N-analogues, as its potential ...
Clonis, Yannis D., Douni, Eleni K., Eliopoulos, Elias E., Labrou, Nikolaos E., Perperopoulou, Fereniki D., Rinotas, Vagelis E., Thireou, Trias N., Tsoungas, Petros G.   +7 more
core   +1 more source

Magnetic Polyamide Nanocomposites for the Microextraction of Benzophenones from Water Samples

Molecules, 2019
In this article, the influence of the monomers on the extraction efficiency and the effect of the addition of surfactants during the synthesis have also been considered.
Hoda Ghambari, Emilia M. Reyes-Gallardo, Rafael Lucena, Mohammad Saraji, Soledad Cárdenas   +4 more
doaj   +1 more source

N‐heterocyclic carbene catalyzed photoenolization/Diels–Alder reaction of acid fluorides [PDF]

, 2019
The combination of light activation and N‐heterocyclic carbene (NHC) organocatalysis has enabled the use of acid fluorides as substrates in a UVA‐light‐mediated photochemical transformation previously observed only with aromatic aldehydes and ketones ...
Agrawal, Arush, Golz, Paul, Götze, Jan P., Hopkinson, Matthew N., Mavroskoufis, Andreas, Rajes, Keerthana, Ruß, Vincent   +6 more
core   +1 more source

Hydrogen Atom Transfer Induces Photodegradation in Carbonyl‐Based Multi‐Resonance TADF Emitters

Angewandte Chemie, EarlyView.
Boosting triplet harvesting in N/C═O MR‐TADF emitters unexpectedly induces rapid photodegradation under oxygen‐free conditions. Spectroscopic studies reveal that triplet excited states trigger hydrogen‐atom transfer from solvent to the carbonyl unit, driven by triplet energetics and hydrogen electrophilicity.
Changfeng Si, Elvie F. P. Beaumont, Jenn Zi Yu Tan, Mitchell J. Demchuk, Zachary M. Hudson   +4 more
wiley   +2 more sources

Bent N‐Heterocyclic Allenes From a Well‐Defined Titanium Vinylidene Complex

Angewandte Chemie, EarlyView.
The syntheses and the structures of N‐heterocyclic allenes are reported. Allenes bearing fluorenylidene capping groups show markedly bent C═C═C units, a carbene‐like reactivity, and they can act as potent C‐donor ligands for metal complexes. ABSTRACT Allenes typically display a linear geometry. A notable exception occurs in allenes bearing two electron‐
Bastiaan Kooij, Damien W. Chen, Rosario Scopelliti, Farzaneh Fadaei‐Tirani, Kay Severin   +4 more
wiley   +2 more sources

Phototesting and photoprotection in LE [PDF]

, 1997
Photosensitivity and induction of skin lesions following UV radiation is a common problem of patients with cutaneous and systemic forms of lupus erythematosus.
Cazenave A., Dubois EL, Fisher AA, Freund H., Fuhs E., G. Messer, Garzon R., Gilliam JN, Hölzle E., Jesionek A., Kind P., Kind P., M. Walchner, P. Kind, Tuffanelli DL, Wallace DJ   +15 more
core   +1 more source