ASYMMETRIC ORGANIC PEROXIDE, CROSSLINKING AGENT COMPRISING THE SAME, AND METHOD OF CROSSLINKING WITH THE SAME
申请人:NOF CORPORATION
公开号:EP1233014A1
公开(公告)日:2002-08-21
A crosslinking agent comprising an asymmetry organic peroxide having at least one structure unit of (substituted)benzoylcarbonyloxy group represented by the following formula (1) in the molecule thereof.
Environmentally friendly crosslinking agents and crosslinked silicone rubber moldings are provided thereby.
Specifically, useful crosslinking agents and crosslinking processes for silicone rubber are provided.
Hydrogen Peroxide and Arenediazonium Salts as Reagents for a Radical Beckmann-Type Rearrangement
作者:Markus Heinrich、Agnes Prechter
DOI:10.1055/s-0030-1260006
日期:2011.5
The reductive ring-opening of hydroperoxides derivedfrom cyclic ketones leads to alkyl radicals which can effectively be trapped by arenediazonium salts. This synthetic transformation yielding azo carboxylic acids or lactams, after a reductive step, can be classified as a radical version of the well-known Beckmann rearrangement. In this article, we present results on the scope, the limitations and
Preparation of 2-(6-Carboxyhexyl)- and 2-(6-Methoxycarbonylhexyl)cyclopent-2-en-1-one Using Free Radical Reactions
作者:Yu. N. Ogibin、E. K. Starostin、A. V. Aleksandrov、K. K. Pivnitsky、G. I. Nikishin
DOI:10.1055/s-1994-25596
日期:——
Two short and simple synthetic routes to the prostaglandin synthons 2-(6-carboxyhexyl)- and 2-(6-methoxycarbonylhexyl)cyclopent-2-en-1-one have been developed. The first is based on a cyclohexanone oxidative transformation with hydrogen peroxide and di-tert-butyl peroxide, the second on the free radical addition reaction of methyl 9-oxononanoate to acrylaldehyde diacylal.
Electron-transfer reactions of alkylperoxy radicals
作者:Slobodan V. Jovanovic、Ivana Jankovic、Ljubica Josimovic
DOI:10.1021/ja00049a037
日期:1992.11
One-electron-transfer reactions of alkyl peroxyradicals were studied by pulse radiolysis of aqueoussolutions. At pH 13, the methyl peroxyradical was found to rapidly, k=1×10 5 -4.9×10 7 M -1 s -1 , and quantitatively oxidize organic substrates with E 13 =0.13-0.76 V vs NHE. On the other hand, this radical was unreactive with compounds with E 13 ≥0.85 V
通过水溶液的脉冲辐解研究了烷基过氧自由基的单电子转移反应。在 pH 13 时,发现甲基过氧自由基迅速,k=1×10 5 -4.9×10 7 M -1 s -1 ,并定量氧化有机底物,E 13 =0.13-0.76 V vs NHE。另一方面,该自由基与 E 13 ≥0.85 V 的化合物不反应