148065-79-6Relevant academic research and scientific papers
Novel photoreaction using diphenyl disulfide derivatives: Photoinduced oxidation of allyl alcohol
Tsuboi, Takaaki,Takaguchi, Yutaka,Tsuboi, Sadao
experimental part, p. 361 - 368 (2009/04/07)
Allyl alcohols are oxidized to acrylaldehydes using diphenyl disulfide derivatives upon photoirradiation. The reaction occurs via α-hydrogen abstraction by a sulfanyl radical. Interestingly, the oxidation reaction occurs in moderate yield when a dendrimer disulfide is used as a mediator.
Organic thiol metal-free stabilizers and plasticizers for halogen-containing polymers
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Page/Page column 4, (2010/02/11)
Organic thiol compounds based on pentaerythritol and dipentaerythritol are described herein. More specifically, the compounds of the present invention are mixed esters of pentaerythritol and dipentaerythritol having at least one sulfhydryl group and preferably a plurality of sulfhydryl groups as well as at least one non-thiol-containing group. The organic thiol compounds are utilized to plasticize and/or heat stabilize halogen-containing polymer compositions especially poly(vinyl chloride) compositions. The compositions are substantially free or free of metal-based stabilizers, Lewis acids and terpenes. The compounds of the present invention are ideally utilized in polymers normally susceptible to deterioration and color change which can occur during processing of the polymer or exposure of the polymer to certain environments and surprisingly also serve as excellent plasticizers.
THE AQUEOUS PERIODATE OXIDATION OF AROMATIC AND ALIPHATIC CARBOXYLIC ACID DISULFIDES
Evans, Brian J.,Doi, Joyce Takahashi,Musker, W. Kenneth
, p. 5 - 14 (2007/10/02)
The water-soluble carboxylic acid-functionalized aromatic disulfides, 3,3'-dithiodibenzoic acid and 5,5'-dithiodiisophthalic acid (5,5'-dithiodi(1,3-benzenedicarboxylic acid)) were prepared and their rates of periodate oxidation to the sulfonic acids were determined.The reaction is first order in each of the reactants which indicates that the slow step is the initial oxidative cleavage step.These aromatic disulfides are oxidized to the sulfonic acids 4-8 times more slowly than a typical aliphatic disulfide.In all cases, water solubility of the disulfide is of prime importance.The periodate oxidation of two aliphatic carboxylic acid analogs were also examined, however, in these cases, the reactions were multiphasic and intermediate thiosulfinates were observed by 1H NMR along with the sulfonic acids.Key words: Periodate; disulfide; thiosulfonate; sulfonic acid, carboxylic acid, ABTS.
