Results 81 to 90 of about 96,389 (286)
Advanced Science, EarlyView.(a) The outstanding lubricative properties of natural articular cartilage arise from a composite coating composed of HA, lubricin, and phospholipids at its surface. Notably, lubricin facilitates the enrichment of synovial HA onto cartilage surfaces, and HA complexes with phospholipids, a key component to maintain extremely low friction under high ...
Yongan Lin +12 more
wiley +1 more source
Toxicokinetic and Partial Mass Balance Assessment of 14C-Alpha Olefins in Rats
Journal of XenobioticsHigher olefins are a class of alkenes widely used as intermediates in the production of essential consumer and industrial products. This radiolabel disposition and partial mass balance study investigated the distribution and excretion of four 14C ...
Quan Shi +10 more
doaj +1 more source
(Z)-4-(2,5-Di-tert-butylanilino)pent-3-en-2-one
Acta Crystallographica Section E, 2011 In the crystal structure of the title ketoamine, C19H29NO, the bond lengths from the N atom through the alkene group to the ketone O atom show the presence of an extensively delocalized π-system.
Jesús Pastrán +4 more
doaj +1 more source
Advanced Science, EarlyView.A one‐dimensional sp2‐carbon covalent organic framework with spatially segregated redox centers integrates a dual photosensitizing system and a cationic interface for synergistic photocatalysis. The material achieves exceptional palladium recovery (1749 mg g−1) and bisphenol A mineralization (0.1710 min−1) without sacrificial agents, demonstrating ...
Yi‐Ru Chen +9 more
wiley +1 more source
, 2017 Catalytic cracking of alkenes takes place at elevated temperatures in the order of 773–833 K. In this work, the nature of the reactive intermediates at typical reaction conditions is studied in H-ZSM-5 using a complementary set of modeling tools.
P. Cnudde +4 more
semanticscholar +1 more source
Catalytic Determinants of Alkene Production by the Cytochrome P450 Peroxygenase OleTJE
Journal of Biological Chemistry, 2017 The Jeotgalicoccus sp. peroxygenase cytochrome P450 OleTJE (CYP152L1) is a hydrogen peroxide-driven oxidase that catalyzes oxidative decarboxylation of fatty acids, producing terminal alkenes with applications as fine chemicals and biofuels ...
Sarah Matthews +10 more
semanticscholar +1 more source
Atroposelective Construction of Axially Chiral Tetraarylethenes Via NHC‐Catalyzed Desymmetrization
Advanced Science, EarlyView.We report the first NHC‐catalyzed atroposelective synthesis of axially chiral TAEs via oxidative desymmetrization of prochiral TAE dialdehydes. This catalytic strategy operates under mild conditions and accommodates a broad range of phenolic and nitrogen nucleophiles, delivering diverse axially chiral TAEs in good yields and up to 99% ee.
Yang‐Ze Zheng +6 more
wiley +1 more source
Electrochemical radical cation aza-Wacker cyclizations
Beilstein Journal of Organic ChemistryElectrochemical or photochemical single-electron oxidation of bench-stable substrates can generate radical cations that offer unique reactivities as intermediates in various bond-formation processes.
Sota Adachi, Yohei Okada
doaj +1 more source
Alkene Hydrogenations by Soluble Iron Nanocluster Catalysts
Angewandte Chemie, 2017 The replacement of noble metal technologies and the realization of new reactivities with earth‐abundant metals is at the heart of sustainable synthesis. Alkene hydrogenations have so far been most effectively performed by noble metal catalysts.
Tim N. Gieshoff +3 more
semanticscholar +1 more source
Advanced Science, EarlyView.A metal‐directed carbonization strategy transforms hierarchical organic microspheres into spiky carbon catalysts with Pd nanoparticles embedded at the tips. This approach resolves the activity‐stability trade‐off, achieving exceptional poison resistance in semi‐hydrogenations, offering a versatile, scalable platform for designing high‐performance ...
Yintao Li +9 more
wiley +1 more source