按主题分类的文章 "Catalyst"

1. Molybdenum hexacarbonyl
   发布于 2025年3月7日

   2
   Molybdenum hexacarbonyl
2. Indium (low valent)
   发布于 2024年11月22日

   6
   Low-valent metal compounds are frequently employed as reducing agents. Given that its most stable oxidation state is 3+, indium is utilized in its 2+ oxidation state to function as a one-electron reducing agent.
3. Rh2(esp)2 Catalyst
   发布于 2024年8月21日

   2
   The Stanford-based Du Bois group has refined the catalytic prowess of Rh in oxidative C-H activation reactions, targeting sulfamate, sulfamide, carbamate, urea, and guanidine substrates. This enhancement stems from their ingenious substitution of tetramethylated m-benzenediproprionic acid 1 ...
4. Chiral Phosphoric Acids——Versatile Organocatalysts with Expanding Applications
   发布于 2023年9月21日

   3
   Aladdin Reagents Company is able to offer a range of BINOL-derived chiral phosphoric acids in its asymmetric catalyst/ligand product portfolio. This class of well-established chiral Brønsted acid catalysts has been increasingly used in efficient conversion reactions.
5. Alcohol Oxidation Catalysts with Higher Activity than TEMPO——AZADOL®
   发布于 2023年9月19日

   4
   Recently, environmentally friendly oxidation reactions catalyzed by a nitrogen-oxygen radical, TEMPO, have attracted attention. Iwabuchi et al. reported that a nitrogen-oxygen radical, 2-azadamantane-N-oxygen (AZADO), efficiently catalyzed oxidation reaction of alcohols.
6. Proline-type Organocatalysts
   发布于 2023年8月18日

   6
   Since the first proline-catalyzed asymmetric synthesis was reported in 1971, a number of asymmetric syntheses using proline and derivatives have been developed. Proline-type organocatalysts are predominantly applicable to a wide assortment of asymmetric aldol reactions and asymmetric ...
7. MacMillan Imidazolidinone Organocatalysts
   发布于 2023年8月17日

   3
   In recent years, asymmetric organic catalytic processes have increasingly become more mature and have been utilized in practical application scenarios.In comparison to metal catalytic processes, organic amine catalysts present numerous potential advantages, such as a more stable physicochemical ...
8. Asymmetric Organocatalysts
   发布于 2023年8月15日

   10
   Asymmetric organocatalysis has emerged as a powerful synthetic tool that is complementary to metal-catalyzed reactions. Pioneering work in this area dates back to the 1970s in which Eder et al. and Hajos et al. separately reported an intramolecular asymmetric aldol reaction which employed ...
9. Photoredox Iridium Catalyst for Single Electron Transfer (SET) Cross-Coupling
   发布于 2023年8月11日

   6
   C(sp2)- and C(sp)-hybridized coupling reactions are established catalytic approaches. However, multi-step C(sp3)- and C(sp2)-coupling reactions of boronic acids and related derivatives are still limited by ineffective two-electron transmetalation reactions. These conventional protocols exhibit ...
10. Visible Light Photoredox Catalysts
    发布于 2023年7月14日

    2
    The photoreaction undergoes a special molecular transformation to form a product that is not obtained through a thermal reaction. In recent years, the light reaction induced by visible light has been further developed. The light reaction in visible light does not require high-energy ultraviolet ...