Alcohol synthesis is critical to the chemical and pharmaceutical industries. The addition of water across olefins to form primary alcohols (anti-Markovnikov olefin hydration) would be a broadly useful reaction but has largely proven elusive; an indirect hydroboration/oxidation sequence requiring stoichiometric borane and oxidant is currently the most practical methodology. Here, we report a more direct approach with the use of a triple relay catalysis system that couples palladium-catalyzed oxidation, acid-catalyzed hydrolysis, and ruthenium-catalyzed reduction cycles. Aryl-substituted terminal olefins are converted to primary alcohols by net reaction with water in good yield and excellent regioselectivity.
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http://dx.doi.org/10.1126/science.1208685 | DOI Listing |
Aliment Pharmacol Ther
January 2025
Division of Gastroenterology and Hepatology, Department of Medicine, University of Arizona College of Medicine, Phoenix, Arizona, USA.
Front Public Health
January 2025
Faculty of Nursing, Department of Medical Nursing, Aydin Adnan Menderes University, Aydin, Türkiye.
Background: Non-communicable diseases (NCDs) are a major global concern. This study aimed to examine the prevalence and co-occurrence of lifestyle risk factors among university students.
Methods: This analytical, cross-sectional study was conducted between January and April 2022.
Surg Pract Sci
June 2023
Department of General Surgery "Ospedaliera". Polyclinic Hospital of Bari, Piazza G. Cesare, 11, 70124 Bari, Italy.
Background: Simple hepatic cysts are commonly detected in the general population, both solitary and associated with Adult Dominant Polycystic Kidney Disease (ADPKD). Laparoscopic fenestration is a surgical option adopted as first-line treatment and to treat complications. The techniques reported in the literature are associated with cyst recurrence in up to 41% of cases.
View Article and Find Full Text PDFJ Migr Health
December 2024
Department of Health Service Research, Norwegian Institute of Public Health, Sandakerveien 24C, 0473 Oslo, Norway.
Background: Since the beginning of the COVID-19 pandemic, various infection control measures and advice have been issued by different authorities across the world to prevent the spread of the infection and associated mortality. However, the support for and ability to follow recommendations varies across countries and populations. In Norway, studies have shown that immigrants bear a higher burden of COVID-19 infections, hospitalizations, and associated mortality compared with the general population.
View Article and Find Full Text PDFJ Mater Chem B
January 2025
School of Chemistry and Materials Science, Ludong University, Key Laboratory of High Performance and Functional Polymer in the Universities of Shandong Province, Collaborative Innovation Center of Shandong Province for High Performance Fibers and Their Composites, Yantai 264025, China.
With the miniaturization, integration and intelligence of sweat electrochemical sensor technology, hydrogel flexible sensors have demonstrated immense potential in the field of real-time and non-invasive personal health monitoring. However, it remains a challenge to integrate excellent mechanical properties, self-healing properties, and electrochemical sensing capabilities into the preparation of hydrogel-based flexible sensors. The utilization of CBPG (cellulose nanocrystals (CNCs)@bovine serum albumin (BSA)@polyethyleneimine (PEI) glucose oxidase (GOD) nanomaterial) as both an enhancing phase and sensor probe within a hydrogel matrix, with poly(vinyl alcohol) (PVA) serving as the primary network constituent, has been proposed as a non-invasive technique for monitoring trace glucose levels in sweat.
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