Results 131 to 140 of about 20,814 (259)

Total Syntheses of Agelamadin F and (±)‐Tauroacidin A, Enabled by NaClO2‐Mediated Coupling Reactions of Oroidin and Amines

Chemistry – A European Journal, Volume 32, Issue 27, 17 July 2026.
Total syntheses of agelamadin F and (±)‐tauroacidin A were achieved by sodium chlorite (NaClO2)‐mediated oxidative C─N coupling. Nine C15–N–amino acid‐substituted oroidin derivatives were successfully prepared to demonstrate the applicability and versatility of this oxidative coupling reaction.
Ryosuke Hirozumi, Yuta Kudo, Yuko Cho, Mari Yotsu‐Yamashita   +3 more
wiley   +1 more source

Flowzonolysis: Continuous Oxidative Ozonolysis of Algae‐Derived Palmitoleic Acid for the Synthesis of Azelaic Acid

Chemistry–Methods, Volume 6, Issue 7, July 2026.
Flowzonolysis enables the continuous oxidative cleavage of algae‐derived palmitoleic acid to azelaic acid in a single integrated process. By combining alkene cleavage and oxidation without isolating reactive intermediates, this method minimizes auxiliary reagents, improves atom economy, and supports safer, more sustainable diacid production from ...
Caitlin Hudecek, Michael D. Burkart
wiley   +1 more source

Marine Isotope Stage 4 glaciation in northern England, UK: Evidence from Victoria Cave, North Yorkshire

Journal of Quaternary Science, Volume 41, Issue 5, Page 770-783, July 2026.
ABSTRACT Victoria Cave, north Yorkshire, England, contains a long sequence of Pleistocene clastic sediments and calcite flowstones. Earlier work, using U–Th dating, established that the flowstone units formed in interglacial stages corresponding to Marine Isotope Stages (MIS) 13, 11, 9, 7 and 5.
Tom C. Lord, Peter Wilson, Joyce Lundberg, Adrian P. Palmer, Matt W. Telfer, Rhiannon E. Stevens, Phillip J. Murphy, Mark Lewis   +7 more
wiley   +1 more source

Photooxidation of 18‐Carbon Polyunsaturated Fatty Acids to Prepare Mono‐Hydroxylated Octadecanoids

Lipids, Volume 61, Issue 4, Page 447-458, July 2026.
We developed a fast and simple one‐step synthetic strategy to produce mono‐hydroxylated metabolites based on the photosensitized oxidation of 18‐carbon polyunsaturated fatty acids (PUFAs). This approach could likely be extended to other PUFAs, suggesting that photosensitized oxidation could be employed to rapidly prepare hydroperoxides from multiple ...
Johanna Revol‐Cavalier, Mats Hamberg, Craig E. Wheelock   +2 more
wiley   +1 more source

Chlorite chemical refinement during giant quartz vein formation [PDF]

The major elemental composition of chlorite is widely used for petrogenetic investigations on low-temperature geological processes. However, compositional variations of chlorite within a given tectonic environment are common and, when overlooked, can ...
González-Esvertit, Eloi, Canals i Sabaté, Àngels, Nieto García, Fernando, Gómez Rivas, Enrique, Casas Tuset, Josep Maria, Bons, Paul D.   +5 more
core   +1 more source

Equation of state measurements of chlorite, pyrophyllite, and talc [PDF]

, 2002
The compressibilities of five sheet silicates-three chlorite compositions, pyrophyllite, and talc- have been measured in situ using energy-dispersive powder diffraction in a multi-anvil apparatus at the synchrotron radiation source, Daresbury Laboratory,
Chinnery, N. J., Pawley, A. R.; id_orcid, Clark, S. M.   +2 more
core   +2 more sources

Magma Mixing Processes in a Continental Collision Zone: Insights From Mineralogical and Geochemical Constraints

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract Eocene magmatism in southern Tibet records deep geodynamic processes associated with the India‐Asia collision. The Quxu batholith, a representative segment of the Gangdese magmatic belt, hosts widespread mafic microgranular enclaves (MMEs) indicating magma mixing.
Yuanku Meng, Jinghao Zhou, Di Wang, Junling Pei, Qingling Wang, Yu Zhang   +5 more
wiley   +1 more source

Analysis on water layers with high resistivity of Chang-8 oil formation in Huaqing Area

Youqicang pingjia yu kaifa, 2020
The resistivity of water layers of part of Chang-8 oil formation of Huaqing area in Ordos Basin is higher than that of conventional ones, which leads that the water layers are often explained to be oil layers and limit the process of exploration and ...
ZHAO Yang, DUAN Yi
doaj  

Emplacement of Hybrid Continental‐Oceanic Arc Terranes Without Collision: The Devonian Calliope Arc (New England Orogen, Australia)

Tectonics, Volume 45, Issue 7, July 2026.
Abstract The accretion of allochthonous provinces, derived from oceanic plates, has traditionally been considered an important contributor to continental growth. However, increasing evidence shows that some oceanic terranes (e.g., island arcs) are not “exotic,” as suggested by the presence of continental‐derived sedimentary provenance.
Igor V. Gomes, Gideon Rosenbaum, Carlos A. Spier, Jack F. Ward, Luke A. Milan   +4 more
wiley   +1 more source

Origin, Tectonic Processes, and Metasomatism of Serpentinite in the Shimanto Accretionary Complex, SW Japan: Possible Diapiric Intrusion of Serpentinized Oceanic Lithosphere

Tectonics, Volume 45, Issue 7, July 2026.
Abstract Serpentinite plays a major role in the geodynamics of subduction zones. However, the processes by which serpentinite is incorporated into accretionary complexes, and the extent to which it interacts chemically and physically with accretionary lithologies, remain unclear.
Yusuke Shimura, Shunsuke Endo, Yoshihiro Asahara, Toshiki Haji, Kentaro Ushimaru, Koshi Yamamoto   +5 more
wiley   +1 more source