Results 131 to 140 of about 26,979 (280)

Toward the Synthesis of Pestalustaine A: Structural Revision and Formation of Original Strained Tricyclic Architectures

Angewandte Chemie, EarlyView.
Our synthetic endeavor toward the total synthesis of the reported unprecedented tricyclic skeleton of the sesquiterpene pestalustaine A allowed us to perform divergent cyclizations of a bicyclo[4.4.1]undec‐3‐ene into complex tricyclic architectures and to revise the structure of the natural product.
Wei Cao, Alicia Ross, Jean‐Pierre Baltaze, Régis Guillot, Menglin Xu, Rongzhen Qin, Bingcheng Yang, Isabel Wong, Katayoon Formul, Cyrille Kouklovsky, Dean J. Tantillo, Vincent Gandon, Guillaume Vincent   +12 more
wiley   +2 more sources

Quantitative Photo‐Reforming of Biomass to CO Spurred by In Situ Protonation of Carbon Dioxide Radical Anions

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, Jinshu Huang, Qizhi Luo, Song Yang, Anders Riisager, Hu Li   +5 more
wiley   +2 more sources

Effect of additional side groups on the vibrational frequencies of benzoquinone molecules

Bibechana, 2016
The present work enumerates detailed computational investigation into the IR spectra in gas phase and in solvent of 1, 4- Benzoquinone family (benzoquinone (BQ), duroquinone (DQ), plastoquinone (PQ), ubiquinone (UQ), and dimethoxy dimethyl benzoquinone (
Nabin Kumar Raut, Hari Prasad Lamichhane
doaj  

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, Félix Léon, Vlad Martin‐Diaconescu, Baptiste Martin, Sonia Mallet‐Ladeira, Juan José Gamboa‐Carballo, Karinne Miqueu, György Szalóki, Didier Bourissou   +8 more
wiley   +2 more sources

Impacts of Quinone Structure on Trade-Offs Between Redox Potential and CO₂ Binding Strength. [PDF]

Chemphyschem
Taylor JS, Forse AC, Thom AJW.
europepmc   +1 more source

Rhodium-Catalyzed Arene Alkenylation Using Benzoquinone Derivatives as Oxidants. [PDF]

Organometallics
Bennett MT, Goupalova M, Chapman CM, Dickie DA, Gunnoe TB.   +4 more
europepmc   +1 more source

Heterologous expression of 1,4-benzoquinone reductases from white-rot fungi in Saccharomyces cerevisiae confers protection against p-benzoquinone toxicity. [PDF]

Microb Cell Fact
Bello-Villarino M, Jönsson LJ.
europepmc   +1 more source

Photocatalytic Solar Hydrogen Peroxide Production on Donor+Acceptor Linear Polymer Semiconductor Powders Reconfigurable by H‐Bonding and π‐Stacking Interactions

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, Yasuhiro Shiraishi, Satoshi Ichikawa, Shunsuke Tanaka, Takayuki Hirai   +4 more
wiley   +1 more source

Hydroquinone Oxidation by Redox-active Guanidines and Thioguanidines: Faster Conversion to High-Potential Than to Low-Potential Quinones. [PDF]

Chemistry
Wild U, Hübner O, Jaworski S, Kaifer E, Himmel HJ.   +4 more
europepmc   +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