Results 151 to 160 of about 16,770 (249)
Angewandte Chemie, EarlyView.Light‐transparent, cage‐type porous organic salts (POSs) function as nanoreactors that heterogenize molecularly defined photocatalysts through size exclusion. Photocatalysts are encapsulated intact during crystallization, providing confined yet accessible reaction fields under visible light without catalyst modification.
Kazuki Shiga +5 more
wiley +2 more sources
Angewandte Chemie, EarlyView.Heterogeneous iron‐catalyzed environmentally benign and sustainable CH‐oxidative esterification methodology has been developed for the synthesis of esters. This challenging reaction has been achieved by the rational design of specific single atom iron‐based catalyst with Fe‐N4 active centers, which empowered the oxidative esterification of methyl and ...
Zhuang Ma +8 more
wiley +2 more sources
Angewandte Chemie, EarlyView.A “two‐in‐one” photoreduction strategy enabled by electron‐rich yolk Cd species both remote from and adjacent to sulfur vacancies is delivered to be ultraselective for the reduction of O2 and •CO2− in situ formed on the shell Bi2S3 composition (hole) by water oxidation and oxidative C–C cleavage of various biomass organic acids, furnishing CO with > 99%
Tengyu Liu +5 more
wiley +2 more sources
Gold(III) Semiquinone Complexes: Synthesis, Structure, and Application in Photocatalysis
Angewandte Chemie, EarlyView.Au(III) catecholate complexes engage into electron donor acceptor (EDA) interactions with aryldiazonium salts, enabling single‐electron transfer under green light irradiation. Ligand‐centered one‐electron oxidation to stable semi‐quinone complexes provides a new platform for standalone Au(III) photoredox catalysis, as substantiated by the C–H arylation
Miguel A. Gonzálvez +8 more
wiley +2 more sources
Effect of quinones to flk cells.
, 2009 Many of recently used chemotherapeutic agents have a quinoidal structure. It is supposed that the main mechanism of antitumour aziridinyl substituted benzoquinones is their two-electron reduction to alkylating products.
Dirginčiutė, Vaidilutė,
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Recent Trends in Heterocyclic Quinones
, 2012 Hetrocyclic quinones are plant secondary metabolites that have found numerous applications. Resulting from exhaustive studies of the past decades, their biological activity in relation to a variety of diseases was reported and countless attempts for ...
Erdelyi, Mate,, Endale, Milkyas,
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The Synthesis and Reactivity of Vitamin E Quinones
, 2017 Vitamin E has been the subject of numerous studies over the last nine decades since its discovery. Still, the biological activity of vitamin E is not completely understood.
Krueger, Nicholas W.
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Angewandte Chemie International Edition, EarlyView.A linear polymer, poly(2,3‐dihydroxynaphthalene), when insolubilized, leads to self‐assembly into a hydroquinone–quinone donor+acceptor semiconducting architecture through H‐bonding and π‐stacking interactions. The polymer behaves as a heterogeneous photocatalyst in water for H2O2 production via water oxidation and O2 reduction under visible light.
Koki Yoshida +4 more
wiley +1 more source
Toward Chromoselective Transformations in Biological Systems: Perspectives and Challenges
Angewandte Chemie International Edition, EarlyView.Controlling biological systems with small‐molecule chromophores has evolved into a powerful strategy and is applied from chemical biology to medicine. However, the complexity of in vivo systems cannot be matched by a single wavelength of light. Developing methods to combine and individually control multiple chromophores is crucial.
Nadja A. Simeth
wiley +1 more source