Results 31 to 40 of about 34,795 (237)

Weak Acids Enhance Halogen Activation on Atmospheric Water’s Surfaces [PDF]

, 2011
We report that rates of I_2(g) emissions, measured via cavity ring-down spectroscopy, during the heterogeneous ozonation of interfacial iodide: I^–(surface, s) + O_3(g) + H+(s) →→ I_2(g), are enhanced several-fold, whereas those of IO·(g) are unaffected,
Colussi, Agustín J., Enami, Shinichi, Hayase, Sayaka, Hoffmann, Michael R., Kawasaki, Masahiro, Yabushita, Akihiro   +5 more
core   +2 more sources

Impact of Oxygen and Sulfur Heteroatom Core Substitution on Catalyst Properties of Phenoxazines and Their Performance in Organocatalyzed Atom Transfer Radical Polymerization (O‐ATRP)

Chemistry – A European Journal, EarlyView.
Phenoxazine core structural modification reveals the impact of charge transfer on stronger excited state reduction potentials. We observed that modifying the core of a photocatalyst that does not exhibit charge transfer yields a highly reducing singlet excited state reduction potential compared to a charge transfer equivalent. Abstract Phenoxazines are
Jessica L. Lathrop, Brandon S. Portela, Robert S. Paton, Garret M. Miyake   +3 more
wiley   +1 more source

The degradation of L-lysine in guinea pig liver homogenate: formation of alpha-aminoadipic acid [PDF]

, 1948
A summary of the little that is known of the metabolism of lysine in animals is as follows: it is indispensable in the diet, its α-amino group does not participate in reversible transamination reaction in vivo (2), neither the L nor D form is attacked by
Borsook, Henry, Deasy, Clara L., Haagen-Smit, A. J., Keighley, Geoffrey, Lowy, Peter H.   +4 more
core   +1 more source

Overturning established chemoselectivities : selective reduction of arenes over malonates and cyanoacetates by photoactivated organic electron donors [PDF]

, 2013
The prevalence of metal-based reducing reagents, including metals, metal complexes, and metal salts, has produced an empirical order of reactivity that governs our approach to chemical synthesis.
Asensio X., Atherton N. M., Baizer M. M., Benkeser R. A., Bhaskar Mondal, Birch A. J., Bodnar B. S., Bouveault L., Cahard E., Carbery D. R., Cram D. J., Cutulic S. P. Y., Cutulic S. P. Y., Doni E., Eswararao Doni, Finley K. T., Fischer H., Garnier J., Garnier J., Garnier J., Hunter C. A., John A. Murphy, Jolly P. I., Kang H.-Y., Kohn W., Krishnan R., Krollpfeiffer F., Lam K., Lam K., Maslak P., Maslak P., McLean A. D., Mortensen J., Murphy J. A., Murphy J. A., Murphy J. A., Murphy J. A., Murphy J. A., Newcomb M., Parmar D., Parr R. G., Portella C., Rühlmann K., S. Grimme S., Sautier B., Steven O’Sullivan, Studer A., Sword R., Szostak M., Tanko J. M., Tell Tuttle, Tomasi J., Xu Q.   +52 more
core   +1 more source

Recent Advances in Detergent Chemistry and Handling Support Membrane Protein Analysis Including Lipid Interactions

Chemistry – A European Journal, EarlyView.
Detergent design parameters determine experimental successes in membrane protein research. Recent progresses in detergent chemistry are reviewed to promote the top‐down design of non‐ionic detergents for the purification and analysis of intact membrane proteins, including lipid interactions.
Katharina Alker, Jan‐Simon Behnke, Leonhard H. Urner   +2 more
wiley   +1 more source

ZZE-Configuration of chromophore ß-153 in C-phycocyanin from Mastigocladus laminosus [PDF]

, 1987
The photochemistry of C-phycocyanin has been studied after denaturation in the dark. It shows an irreversible reaction which has characteristics of a Ζ,Ζ,Ε- to Z,Z,Z-isomerization of dihydrobilins. Its amplitude depends on the reaction conditions, with
Bode, W., Fischer, R., Huber, R., Rüdiger, W., Scheer, Hugo, Schirmer, T., Schmidt, G., Siebzehnrübl, S.   +7 more
core   +1 more source

Gels for CO2 geo‐storage and conformance control: A systemic review of behavior and performance

Deep Underground Science and Engineering, EarlyView.
This review provides a systemic evaluation of potential sealants used in CO2 subsurface storage practices. Critical analyses of how external factors like CO2, pH, brine salinity and hardness, rock mineralogy, pressure, temperature, and injectivity could affect the performance of different sealants are provided. Abstract Carbon capture and storage (CCS)
Funsho Afolabi, Iskandar Dzulkarnain, Sunil Kwon, Dmitriy A. Martyushev, Jang H. Lee, Shiferaw R. Jufar, Fahd Al‐Akbari   +6 more
wiley   +1 more source

Hydrogenative Cyclopropanation and Hydrogenative Metathesis

, 2019
The unusual geminal hydrogenation of a propargyl alcohol derivative with [CpXRuCl] as the catalyst entails formation of pianostool ruthenium carbenes in the first place; these reactive intermediates can be intercepted with tethered alkenes to give either
Biberger, T., Fürstner, A., Guthertz, A., Peil, S.   +3 more
core   +1 more source

Synthesis and Activity of Six-Membered Cyclic Alkyl Amino Carbene–Ruthenium Olefin Metathesis Catalysts [PDF]

, 2020
Ru–cyclic alkyl amino carbene (Ru–CAAC) olefin metathesis catalysts perform extraordinarily in metathesis macrocyclization and ethenolysis, but previous studies have been limited to the use of five-membered CAAC (CAAC-5) ligands.
Grubbs, Robert H., Samkian, Adrian E., Virgil, Scott C., Xu, Yan, Yoon, Ki-Young   +4 more
core  

Enantioselective isothiourea catalysed Michael-Michael-lactonisation cascade; synthesis of δ-lactones and 1,2,3,4-substituted cyclopentanes [PDF]

, 2017
The authors thank the EPSRC (ERTR – grant code EP/J500549/1; ABF - grant code EP/J018139/1), the Spanish government for a FPU Fellowship and the University of Seville (V Plan Propio de Investigación) for financial support (PER).
Elías-Rodríguez, Pilar, Frost, Aileen B., Robinson, Emily R. T., Smith, Andrew D.   +3 more
core   +1 more source