New odorless method for the Corey–Kim and Swern oxidations utilizing dodecyl methyl sulfide (Dod-S-Me)
摘要:
Development of the odorless dodecyl methyl sulfide (Dod-S-Me, 1) as an alternative for dimethyl sulfide (DMS) and new odorless methods for the Corey-Kim and Swern oxidations are described. These reactions have been developed with a view toward green chemistry, utilizing Dod-S-Me (1) and common solvents instead of dichloromethane. (C) 2003 Elsevier Ltd. All rights reserved.
Fe<sub>3</sub>
O<sub>4</sub>
@S-ABENZ@VO: Magnetically separable nanocatalyst for the efficient, selective and mild oxidation of sulfides and oxidative coupling of thiols
Oxovanadium(IV) immobilized on Fe3O4@S‐ABEN is reported as a highly efficient nanocatalyst for the oxidation of sulfides and oxidative coupling of thiols (using H2O2 as green oxidant), the products of which are obtained in high to excellent yields. The products can be separated by a simple extraction with organic solvent and the catalyst is highly efficient, especially in terms of selectivity of desired product
据报道,固定在Fe 3 O 4 @ S-ABEN上的氧钒(IV)是一种高效的纳米催化剂,可用于硫化物的氧化和硫醇的氧化偶联(使用H 2 O 2作为绿色氧化剂),其产物可在高浓度下获得。高产。可以通过用有机溶剂的简单萃取来分离产物,并且该催化剂是高效的,特别是在所需产物的选择性方面。催化体系可以循环使用,而不会明显降低催化活性。
Synthesis and characterization of oxo-vanadium complex anchored onto SBA-15 as a green, novel and reusable nanocatalyst for the oxidation of sulfides and oxidative coupling of thiols
Abstract The present work describes the synthesis of a new oxo-vanadium complex immobilized on SBA-15 nanostructure as an efficient catalyst for oxidation of sulfides and oxidative coupling of thiols. Characterization of the resultant AMPD@SBA-15 nanostructure was performed by various physico-chemical techniques such as Fourier transform infrared spectroscopy, transmission and scanning electron microscopies
Abstract A novelmagnetic nanoparticle was synthesized with effective catalytic properties and recyclable ability. This heterogeneous nanocatalyst was identified using Fourier transform infrared, scanning electron microscopies, X‐ray diffraction, vibrating sample magnetometer, inductively coupled plasma atomic emission spectroscopy and thermogravimetric analysis methods. The nanocatalyst was used for
Synthesis and characterization of MCM-41@XA@Ni(II) as versatile and heterogeneous catalyst for efficient oxidation of sulfides and acetylation of alcohols under solvent-free conditions
strategy. The structure of the catalyst was characterized by X-ray diffraction. The thermal property of the as-synthesized materials was studied using thermogravimetric-differential thermal analysis. The average particles size and morphology of MCM-41@XA@Ni(II) were investigated using scanning electron microscopy and transmission electron microscopy. This nanostructure catalyst was effective for the selective
本文中,通过简便的顺序策略设计并合成了固定在改性介孔二氧化硅MCM-41上的Ni(II)。催化剂的结构通过X射线衍射表征。使用热重差热分析研究了合成后材料的热性能。使用扫描电子显微镜和透射电子显微镜研究了MCM-41 @ XA @ Ni(II)的平均粒径和形态。这种纳米结构催化剂在无溶剂条件下对硫化物的选择性氧化和醇的乙酰化有效。催化剂的易回收性及其在硫化物氧化中对底物硫基团的完全化学选择性是该催化剂的重要“绿色”特性。
A magnetically retrievable heterogeneous copper nanocatalyst for the synthesis of 5-substituted tetrazoles and oxidation reactions
advantages of this catalyst. The catalytic activity has been explored for the oxidation of sulfides, oxidative coupling of thiols and synthesis of 5-substituted tetrazoles.Graphical AbstractA magnetically retrievable heterogeneous copper nanocatalyst for the synthesis of 5-substituted tetrazoles and oxidation reactions