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Computational Insights into the Mechanism of Lewis Acid-Catalyzed Alkene-Aldehyde Coupling.
Chempluschem
January 2025
University of Vienna, Faculty of Chemistry, Währinger Str. 17, 1090, Vienna, AUSTRIA.
The Lewis acid-catalyzed coupling of alkenes and aldehydes presents a modern, versatile synthetic alternative to classical carbonyl addition chemistry, offering exceptional regio- and stereoselectivity. In this work, we present a comprehensive computational investigation into the reaction mechanism of this transformation. Our findings confirm the occurrence of an enantioselective trans-annular [1,5]-hydride shift step and demonstrate that the enantioselectivity of the reaction arises predominantly from steric clashes between functional groups in the cyclization step.
View Article and Find Full Text PDFA C4 plant K+ channel accelerates stomata to enhance C3 photosynthesis and water use efficiency.
Plant Physiol
January 2025
Laboratory of Plant Physiology and Biophysics, Bower Building, and.
Accelerating stomatal kinetics through synthetic optogenetics and mutations that enhance guard cell K+ flux has proven a viable strategy to improve water use efficiency and biomass production. Stomata of the model C4 species Gynandropsis gynandra, a relative of the C3 plant Arabidopsis thaliana, are similarly fast to open and close. We identified and cloned the guard cell rectifying outward K+ channel (GROK) of Gynandropsis and showed that GROK is preferentially expressed in stomatal guard cells.
View Article and Find Full Text PDFCrystallisation Based Deracemisation and Chiral Resolution of Small Molecules.
Chem Asian J
January 2025
Mahatma Gandhi University, School of Chemical Sciences, Priyadarsini Hills, 686560, Kottayam, INDIA.
Enantiomeric separation of chiral molecules is pivotal for exploring fundamental questions about life's origin and many other fields. Crystallisation is an important platform for the separation of chiral molecules, elegantly applied to many systems, for instance, the formation of conglomerates, where the enantiomers crystallise as separate phases. Many approaches have been proposed to explore crystallisation-driven enantiomeric separation with fewer insights into the complex pathways associated with the separation processes.
View Article and Find Full Text PDFEnhanced K-storage kinetics for N-doped carbon via controllable dedoping strategy.
Chemistry
January 2025
Nanjing University of Aeronautics and Astronautics, School of Materials Science and Engineering, 29 Yudao St., 210016, Nanjing, CHINA.
As a potential alternative to next-generation LIBs, carbonous materials have garnered significant attention as anode materials for potassium-ion batteries due to their low cost and environmental friendliness. However, carbonaceous materials cannot fulfill the demand of anode for PIBs, due to volume expansion and poor stability during charging/discharging process. It is well-known that N doping can provide active sites for K-storage, and expand the layer distance between graphite layers.
View Article and Find Full Text PDFTremor in the Age of Omics: An Overview of the Transcriptomic Landscape of Essential Tremor.
Cerebellum
January 2025
Department of Human Genetics, McGill University, Montréal, Québec, Canada.
Essential Tremor (ET) is the most common movement disorder and has a worldwide prevalence of 1%, including 5% of the population over 65 years old. It is characterized by an active, postural or kinetic tremor, primarily affecting the upper limbs, and is diagnosed based on clinical characteristics. The pathological mechanisms of ET, however, are mostly unknown.
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