An Efficient and New Method on the Oxidative Coupling of Thiols under Mild and Heterogeneous Conditions

Abstract

Table 1. Oxidative coupling of thiols to the corresponding disulfides using combination of Al(NO3)3․9H2O I and silica sulfuric acid II in dichloromethane at room temperature.Ref.

A new neodymium complex on renewable magnetic biochar nanoparticles as an environmentally friendly, recyclable and efficient nanocatalyst in the homoselective synthesis of tetrazoles

“…15–18 Therefore, nanocatalysts as a bridge between homogeneous and heterogeneous catalysts have recently received attention because they have high catalytic activity and are easily recycled and reused, so they do not have the disadvantages of conventional catalysts, while having their own advantages. 19–22 In this context, different nanoparticles such as mesoporous silica materials, 23–25 graphene oxide, 26 polymers, 27,28 hercynite, 29 MOF nanoparticles, 30–32 boehmite, 33–36 magnetic nanoparticles, 37,38 carbon nanostructures, 39,40 biochar, 41–45 etc. have been reported as catalysts or catalyst supports.…”

3-(Sulfamic acid)-propyltriethoxysilane on biochar nanoparticles as a practical, biocompatible, recyclable and chemoselective nanocatalyst in organic reactions

“…On the other hand, the heterogeneous nature of nanocatalysts makes them recyclable and reusable similar to heterogeneous catalysts. [17][18][19][20][21][22][23][24] In this context, several nanostructure materials such as mesoporous materials, 25,26 carbon nanostructures, 27,28 modied polymers, 13,29,30 modied graphene oxide, 31 MOF structures, 32,33 modied boehmite nanoparticles, 34,35 biochar, 36 magnetic nanoparticles 37,38 have been employed as catalyst supports. Among them, biochar has unique features, which can be formed by the pyrolysis of organic waste, plant residues, tree bark, and animal manure.…”