Results 101 to 110 of about 1,015 (244)

Nitrooxylation in Organic Synthesis: From Classical Nitrate Ester Formation to Modern Catalytic Strategies

Chemistry – A European Journal, EarlyView.
Nitrooxylation—the installation of nitrate esters (–ONO2) has evolved from classical mixed‐acid protocols to catalytic and mechano‐, flow‐, photo‐, and electrochemical strategies. This review delineates ionic and radical manifolds for C–ONO2 bond formation, emphasizing mechanistic control, selected substrate scope, and selectivity.
Jayanta Dey, Dmitry Katayev
wiley   +1 more source

GH172 Difructose Dianhydride I Synthase: A Two‐Stepped Journey via Glycosylation and Cyclization Using QM/MM Metadynamics

Chemistry – A European Journal, EarlyView.
Unlocking the chemistry of caramel by simulations and experimental validation. αFFase1${\alpha }\rm{FFase1}$ converts inulobiose into difructose dianhydride I, one component of caramel, through two steps: a rate‐limiting glycosylation (with a rare sugar ring flip) followed by a cyclization step, guided by residues E85, K147, and N226.
Santiago Alonso‐Gil, Bruno Di Geronimo, Toma Kashima, Akihiro Ishiwata, Katsunori Tanaka, Kiyotaka Fujita, Shinya Fushinobu, Pedro A. Sánchez‐Murcia   +7 more
wiley   +1 more source

Phosphonomethyl (Thio)Phosphonamidite Reagents for the Construction of Phosphonylmethyl Phosphono(Di)Thioate Mono‐ and Diesters

Chemistry – A European Journal, EarlyView.
A set of new phosphonomethyl (thio)phosphonamidite reagents is introduced to generate unprecedented pyrophosphate mimetics. The versatile P(III)‐P(V) reagents allow for the construction of various pyrophosphate isosteres, and the applicability of the chemistry is illustrated in the assembly of a diverse set of stabilized CDP‐glycerol and CDP‐ribitol ...
Pascal Balić, Roy Steneker, Gijsbert A. van der Marel, Jeroen D. C. Codée, Dmitri V. Filippov   +4 more
wiley   +1 more source

Butanols

, 2013
Norbert Rupprich, Hubert Bahl, Heinz-Dieter Hahn, Georg Dämbkes, Guido D. Frey   +4 more
core   +1 more source

Role of Lewis centres on ethanol dehydrogenation over the Cu‐Cr/γ‐Al2O3 system

The Canadian Journal of Chemical Engineering, EarlyView.
Cu–Cr interactions on alumina enhance Lewis acid site density, boosting selectivity towards ethanol dehydrogenation products. Soft coke formation on copper and Cu–Cr sites drives deactivation, shifting the reaction towards unwanted dehydration products.
Sakun Preedavijitkul, Wei Tian, Andres Rodriguez‐Marmolejo, Pantita Trongjitraksa, Chaowat Autthanit, Piyasan Praserthdam, Bunjerd Jongsomjit, Jose E. Herrera   +7 more
wiley   +1 more source

Schülerexperimente zur Synthese naturidentischer, geruchsaktiver Ester im Mikromaßstab durch alkalisch katalysierte Umesterung von Glyceriden

CHEMKON, EarlyView.
In diesem Beitrag wird ein einfaches Schülerexperiment vorgestellt, bei dem durch Umesterung von Triacylglyceriden mit n‐Alkanolen im Mikromaßstab geruchsaktive Alkylalkanoate hergestellt werden. Die Reaktion erfolgt alkalisch katalysiert bei Raumtemperatur in kleinen Gefäßen; es entstehen flüchtige Ester mit charakteristischen Frucht‐ und ...
Horst Klemeyer
wiley   +1 more source

Enhanced Photocatalytic Antibiotic Micropollutants Removal Resulting From a Synergism Between Cu Single Atoms and Carbon Vacancies on Graphitic Carbon Nitride

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Scheme of the synergistic degradation for antibiotic micropollutants in the Cu/ag‐C3N4 system. Photocatalytic processes driven by visible‐light irradiation offer a sustainable means of micropollutants removal from aquatic environments without the addition of reagents.
Xiaozhe Song, Cong Yan, Qinghua Yan, Congzhe Ren, Xin Liu, Ruiyan Zhang, Lei Chen, Chongqing Xu, Zhouyang Long, Wenyu Wang, Mingming Song, Xiaoguo Shi, Hui Wang   +12 more
wiley   +1 more source

Isolation and Identification of Secondary Metabolites in <i>Rheum tataricum</i> L.fil. Growing in Kazakhstan and Surveying of Its Anticancer Potential. [PDF]

Molecules
Turgunbayeva AA, Sultanova NA, Hamad MS, Savelyev VA, Chernyak EI, Bagryanskaya IY, Pokrovsky MA, Pokrovsky AG, Gemejiyeva NG, Shults EE.   +9 more
europepmc   +1 more source

CO2 Conversion Into Energy Rich Fuels Over Nascent COF Decorated‐Lead Free Halide Perovskites Hybrid Nano Catalysts: Experimental and Computational Investigation

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A panoramic scheme signifies the CO2 conversion into energy‐rich fuels over nascent COF‐decorated lead‐free halide perovskite hybrid nano‐catalysts. Even though lead‐containing halide perovskites have been deemed emerging materials. However, the presence of toxic and carcinogenic lead (Pb) metal, small surface area, low charge separation, and a high ...
Iltaf Khan, Ghulam Yasin, Anuj Kumar, Chunjuan Wang, Ali Bahadur   +4 more
wiley   +1 more source

Leucyl-tRNA synthetase as a molecular target of isobutanol-mediated growth inhibition in Saccharomyces cerevisiae. [PDF]

J Biol Chem
Hasegawa M, Oshimura N, Hitomi K, Furukawa A, Sugase K, Kuroda K.   +5 more
europepmc   +1 more source