Glycidyl esters, frequently employed as reactive groups on polymeric supports, were functionalized with alcohols as stoichiometric reagents, yielding β-alkoxyalcohols. Among the solvents studied, best results were obtained in ethers in the presence of a strong proton acid as a catalyst. Alcohols include simple alkanols, diols, protected polyols, 3-butyn-1-ol 3-hydroxypropanenitrile and cholesterol. This protocol represents a convenient way for introduction of various functionalities onto epoxy-functionalized polymers. Under the reaction conditions, some side reactions take place, mostly due to the reactive ester group and water present in the reaction mixture.
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http://dx.doi.org/10.17344/acsi.2014.1306 | DOI Listing |
Org Lett
January 2025
Department of Chemistry and Materials Science, College of Science, Nanjing Forestry University, Nanjing 210037, China.
The Nozaki-Hiyama-Kishi reaction offers effective and reliable strategies for the preparation of alcohols via carbon-carbon bond formation. Typical methods usually require stoichiometric amounts of chromium salts, co-transition metals, and auxiliary reagents, which limits their practical application in industrial chemistry. To mitigate these limitations, substantial efforts have been made to develop chromium-catalytic approaches.
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January 2025
Centre CEA Paris-Saclay: Commissariat a l'Energie Atomique et aux Energies Alternatives Centre de Saclay, IRAMIS Institute, CEA - Saclay, 91190, Gif-Sur-Yvette, FRANCE.
The Schwartz's reagent Cp2Zr(H)Cl is a well known stoichiometric reagent for the reduction of unsaturated organic molecules but it has rarely been used in catalytic transformations. Herein, we describe the reduction of a variety of organic carbonates using the catalyst Cp2Zr(H)Cl in combination with Me(MeO)2SiH (DMMS) as reductant. This method was further applied to the reductive depolymerization of some polycarbonate materials and yielded silylated alcohols and diols in mild conditions.
View Article and Find Full Text PDFJ Biol Chem
January 2025
Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan. Electronic address:
Many patients with diabetes use self-measurement devices for blood glucose to understand their blood glucose levels. Most of these devices utilize FAD-dependent glucose dehydrogenase (FAD-GDH) to determine blood glucose levels. For this purpose, FAD-GDHs specifically oxidizing glucose among the sugars present in blood is required.
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January 2025
Department of Chemistry, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008, India.
In this work, we have reduced CO with HBpin to afford borylated methanol product selectively in ~99 % yield using Ce[N(SiMe)](THF) as a catalyst. This led to multigram scale isolation of methanol obtained from CO reduction via the hydrolysis of borylated methanol, this establishes the potential of Ce[N(SiMe)](THF) as an efficient homogeneous catalyst for the bulk scale methanol synthesis. A practical application of this catalytic system was also shown by reducing CO-containing motorbike exhaust efficiently and selectively.
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January 2025
School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Xinjiang, 832003, China.
An N,N,N-type Cu(II) complex-catalyzed desaturation method for converting alcohols, ketones, lactones, and lactams to their α,β-unsaturated carbonyl compounds is reported. The dehydrogenation reaction can be conducted with a green terminal oxidant O without requiring strong acid/base or stoichiometric oxidants. The Cu(II) complex/TEMPO/O system uses a non-noble catalyst, and a green terminal oxidant as well as demonstrates high activity and functional group tolerance.
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