A Sulfitylation−Oxidation Protocol for the Preparation of Sulfates
作者:M. Huibers、Álvaro Manuzi、Floris P. J. T. Rutjes、Floris L. van Delft
DOI:10.1021/jo060404v
日期:2006.9.1
A novel, high-yielding method for sulfation of alcohols has been developed, proceeding via sulfite- and sulfate diester intermediates. Sulfite diesters serve as versatile sulfate monoester precursors, allowing for transformations that are difficult or impossible with the latter compounds.
A Mechanistic Study of the Alkaline Hydrolysis of Diaryl Sulfate Diesters
作者:Jarod M. Younker、Alvan C. Hengge
DOI:10.1021/jo0488309
日期:2004.12.1
alkyl aryl diesters, which undergo reaction by carbon−oxygen bondfission. Sulfuryl transfer reactions of sulfate diesters (RO−SO2−OR‘) proceeding by attack at sulfur have been little explored. When both ester groups are aryl groups the hydrolysis reaction (sulfuryl transfer to water) occurs by way of attack at sulfur. The alkaline hydrolysis of diaryl sulfate diesters was shown to obey first-order kinetics
Diperoxyacid precursors process for production thereof and use in bleaching compositions
申请人:The Clorox Company
公开号:EP0262895A1
公开(公告)日:1988-04-06
Novel sulfonated phenyl esters of dicarboxylic acids are useful as diperoxyacid precursors in bleaching and laundering applications when combined with a source or peroxide. These diperoxyacid precursors can be produced by reacting a dicarboxylic acid, a phenol sulfonate, and a lower alkyl acid anhydride in an alkyl hydrocarbon solvent and removing a carboxylic acid by-product through distillation. The diperoxyacid precursors have the structure:
wherein n is an integer from about 4 to about 18 and M is an alkali metal. an alkaline earth metal. or ammonium. The diperoxyacid precursors have a high perhydrolysis profile coupled with a relatively low-to-moderate hydrolysis profile.
STABILIZED HYDROGEN PEROXIDE COMPOSITIONS AND METHOD OF MAKING SAME
申请人:Metrex Research LLC
公开号:EP3101105A1
公开(公告)日:2016-12-07
Stabilized hydrogen peroxide-containing compositions and methods of making same are disclosed. The compositions contain a stabilizer system made up of a disulfonate surfactant, a diester solvent, and a sulfonic acid or a salt thereof in a sufficient quantity to provide the stabilized hydrogen peroxide with an acidic pH value. The compositions are suitable for use as disinfectants, as cleaning agents, and in various personal care applications such as hair care and tooth whitening.
Stable pharmaceutical product and vessel comprising sodium picosulfate, magnesium oxide and citric acid
申请人:Hetero Labs Limited
公开号:US11471447B2
公开(公告)日:2022-10-18
Described herein is a stable oral liquid pharmaceutical product comprising sodium picosulfate, magnesium oxide and citric acid. Particularly, sodium picosulfate is physically separated from magnesium oxide and citric acid prior to dispensing and is mixed at the time of administration.