Silica Bromide Research Articles

ChemInform Abstract: Selective Synthesis of Sulfoxides and Sulfones from Sulfides Using Silica Bromide as the Heterogeneous Promoter and Hydrogen Peroxide as the Terminal Oxidant.

Silica bromide as a heterogeneous promoter and reagent is prepared from the reaction of silica gel with PBr3 as a non-hydroscopic, filterable, cheap, and stable yellowish powder that can be stored for months. The results show that silica bromide is a suitable and efficient promoter for the chemoselective oxidation of sulfides to the corresponding sulfoxides or sulfones in the presence of 30% H2O2 in acetonitrile. The excellent yields, heterogeneous conditions, simplicity, compatibility with a variety of functionalities, and ease of isolation of the products make our procedure a practical alternative.

Selective synthesis of sulfoxides and sulfones from sulfides using silica bromide as the heterogeneous promoter and hydrogen peroxide as the terminal oxidant

Chemoselective oxidation of sulfides to sulfoxides and sulfones. Heterogeneous promoter. Synthesis of sulfoxides and sulfones at room temperature.

A very useful and mild method for the deoxygenation of sulfoxide to sulfide with silica bromide as heterogeneous promoter

Silica bromide (SB) as heterogeneous reagent and promoter is prepared from reaction of silica gel with PBr3 as a non-hydroscopic, filterable, cheap, and stable yellowish powder that can be stored for months. The results show that the SB is suitable and efficient reagent for deoxygenation of sulfoxides to the corresponding sulfides under mild conditions at room temperature. The easy availability of this reagent makes this simple procedure attractive and a practical alternative to the existing methods.

ChemInform Abstract: Synthesis of Silica Bromide as Heterogeneous Reagent and Its Application to Conversion of Alcohols to Alkyl Bromides.

AbstractThe reagent is highly efficient for the preparation of a broad spectrum of aliphatic and aromatic bromides.

Synthesis of Silica Bromide as Heterogeneous Reagent and its Application to Conversion of Alcohols to Alkyl Bromides

The reagent is highly efficient for the preparation of a broad spectrum of aliphatic and aromatic bromides.