...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Evidence for a Radical Mechanism of the Dechlorination of Chlorinated Propenes Mediated by the Tetrachloroethene Reductive Dehalogenase of Sulfurospirillum multivorans
【24h】

Evidence for a Radical Mechanism of the Dechlorination of Chlorinated Propenes Mediated by the Tetrachloroethene Reductive Dehalogenase of Sulfurospirillum multivorans

机译：硫代螺旋藻四氯乙烯还原脱卤酶介导的氯代丙烷脱氯自由基机理的证据。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The reductive dehalogenation of chlorinated propenes was studied with the tetrachloroethene reductive dehalogenase purified from Sulfurospirillum multivorans to obtain indications for a radical mechanism of this reaction. When reduced methyl viologen (MV), which is a radical cation, was applied as electron donor for the reduction of different chloropropenes, a significant part of MV could not be rereduced with Ti(III) citrate, indicating that a part of the MV was consumed in a side reaction. Mass spectrometric analysis of assays with MV as electron donor revealed the formation of side products, the masses of which might account for the formation of adducts from a chloropropenyl radical and reduced methyl viologen. With Ti(III) citrate as sole electron donor, 2,3-dichloropropene was reduced and as a side product, 2,5-dichloro-1,5-hexadiene was formed demonstrating that the reductive dechiorination of 2,3-dichloropropene proceeds via a radical reaction mechanism.
机译：用从多硫磺螺旋菌纯化的四氯乙烯还原性脱卤酶研究了氯化丙烯的还原性脱卤，以表明该反应的根本机理。当作为自由基阳离子的还原甲基紫精（MV）用作电子供体以还原不同的氯丙烯时，柠檬酸Ti（III）不能还原MV的很大一部分，表明一部分MV是在副反应中消耗。以MV作为电子给体的分析的质谱分析显示了副产物的形成，副产物的质量可能解释了氯丙烯基和还原的甲基紫精形成加合物的原因。用柠檬酸钛（III）作为唯一的电子给体，还原了2,3-二氯丙烯，并作为副产物形成了2,5-二氯-1,5-己二烯，表明2,3-二氯丙烯的还原脱氯反应通过自由基反应机制。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号