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
l-Arginine complex of copper on modified core–shell magnetic nanoparticles as reusable and organic–inorganic hybrid nanocatalyst for the chemoselective oxidation of organosulfur compounds
stable heterogeneous nanostructurecatalyst of copper immobilized on Fe3O4@SiO2@l-Arginine, for the oxidation of sulfides and oxidativecoupling of thiols. The prepared nanocatalyst has been characterized by different techniques such as FTIR, XRD, SEM, TEM and TGA. These nanoparticles were the effective catalyst for selective oxidation of sulfides and oxidativecoupling of thiolsusing 30% H2O2. The suggested
在本文中,我们报道了固定化在Fe 3 O 4 @SiO 2 @ 1-精氨酸上的铜的稳定多相纳米结构催化剂的制备和表征,该催化剂用于硫化物的氧化和硫醇的氧化偶联。所制备的纳米催化剂已经通过不同的技术进行了表征,例如FTIR,XRD,SEM,TEM和TGA。这些纳米粒子是使用30%H 2 O 2选择性硫化物氧化和硫醇氧化偶联的有效催化剂。所提出的方法具有几个突出的优点,例如条件温和,使用磁性可重复使用的催化剂,后处理步骤简单,产物的产率高到高以及选择性高。
N,N-bis(trimethylsilyl)alkenesulfenamides: synthesis and transaminations via S-alkenylthiophthalimides. A general route to alkenesulfenamides and alkenesulfonamides
作者:Adrian L. Schwan、Mitchell D. Refvik
DOI:10.1039/c39950001949
日期:——
N,N-bis(Trimethylsilyl)alkenesulfenamides 3, prepared by the reaction of trans-alkenesulfenates with TMSCI and LiHMDS, are modified to their corresponding S-alkenylthiophthalimides 6 which are then converted to alkenesulfenamides 7 bearing more general nitrogen functionality.
Preparation of N,N-bis(trimethylsilyl)-1-alkenesulfenamides and their desilylative conversion to 1-alkenesulfenimines. New stable 1-alkenesulfenic acid derivatives
作者:Mitchell D. Refvik、Adrian L. Schwan
DOI:10.1016/0040-4020(96)00406-1
日期:1996.6
Eight stable N,N-bis(trimethylsilyl)-1-alkenesulfenamides (3) were synthesized by the reaction of 1-alkenesulfenate anions with TMSCl and LiHMDS. Compounds 3 were isolated either by distillation or by chromatography. 1-Alkenesulfenamides (3) can be desilylated in the presence of aldehydes and ketones that do not bear α-hydrogens, to afford 1-alkenesulfenimines (7) either as single isomers or as mixtures