八溴联苯醚 | 117964-21-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 八溴联苯醚
• 英文名称: 2,2',3,3',4,4',6,6'-octabromodiphenyl ether
• 英文别名: 1,2,3,5-tetrabromo-4-(2,3,4,6-tetrabromophenoxy)benzene
• CAS: 117964-21-3
• 化学式: C₁₂H₂Br₈O
• 分子量: 801.379
• InChiKey: AAFUUKPTSPVXJH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  9
• 重原子数：
  21
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  十溴二苯醚 在 dioxide titanium 作用下， 以 四氢呋喃 、 甲醇 为溶剂， 反应 1.0h， 生成 2,2',3,4,4',5,6,6'-八溴二苯醚 、 八溴联苯醚 、 2,2',3,3',4,4',5,6'-八溴二苯基醚 、 八溴二苯醚 、 2,2',3,3',4,5',6,6'-octabromodiphenyl ether
  参考文献：
  名称：

  Pd-TiO2上多溴联苯醚的快速，光催化和深度脱溴：中间体和途径

  摘要：

  带有表面负载钯的二氧化钛（Pd–TiO 2）在阳光或人工光源的照射下，在1 h内即可轻松地从十溴二苯醚（BDE209）中去除所有十个溴原子。相比之下，即使经过长时间照射（5小时），在原始TiO 2上也可以消除少于三个的溴原子。此外，在光催化脱溴过程中，所形成的BDE中间体在Pd-TiO 2和原始TiO 2体系之间显示出显着差异，并且观察到的脱溴在Pd-TiO 2上的位置选择性比在原始TiO 2表面上的位置选择性小得多。。对于另一种多溴二苯醚（BDE15），原始TiO2不能进行光催化还原，而Pd的负载使其能够在20分钟内脱溴成二苯醚。此外，在Pd-TiO 2上光催化脱溴BDE15出现了明显的诱导期。实验表明，Pd共催化作用会显着改变光催化还原性脱溴途径。

  DOI：

  10.1002/chem.201402477

文献信息

• Highly unsaturated fatty acid or highly unsaturated fatty acid ethyl ester with reduced environmental pollutants, and method for producing same
  申请人：NIPPON SUISAN KAISHA, LTD.

  公开号：US10399922B2

  公开（公告）日：2019-09-03

  A highly unsaturated fatty acid or a highly unsaturated fatty acid ethyl ester that has been produced using as a feedstock oil a fat or oil that contains highly unsaturated fatty acids as constituent fatty acids and which has been reduced in the contents of environmental pollutants, wherein among the dioxins contained, polychlorinated dibenzoparadioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) are contained in amounts of less than 0.05 pg-TEQ/g and coplanar PCBs (Co-PCBs) in amounts of less than 0.03 pg-TEQ/g. Also disclosed is a method for producing the highly unsaturated fatty acid or highly unsaturated fatty acid ethyl ester by the steps of removing free fatty acids and environmental pollutants by thin-film distillation from a feedstock oil, ethyl esterifying the resulting fat or oil, and refining the same by rectification and column chromatography.

  一种高度不饱和脂肪酸或高度不饱和脂肪酸乙酯，它是以含有高度不饱和脂肪酸作为组成脂肪酸的脂肪或油作为原料油生产的，其环境污染物含量已经降低，其中所含的二恶英中，多氯二苯并对二恶英（PCDD）和多氯二苯并呋喃（PCDF）的含量低于 0.05 pg-TEQ/g，共面多氯联苯（Co-PCB）的含量低于 0.03 pg-TEQ/g。05 pg-TEQ/g，共面多氯联苯（Co-PCBs）含量低于 0.03 pg-TEQ/g。本发明还公开了一种生产高度不饱和脂肪酸或高度不饱和脂肪酸乙酯的方法，其步骤是通过薄膜蒸馏法从原料油中去除游离脂肪酸和环境污染物，对所得脂肪或油进行乙酯化，并通过精馏和柱层析法对其进行精制。
• HIGHLY UNSATURATED FATTY ACID OR HIGHLY UNSATURATED FATTY ACID ETHYL ESTER WITH REDUCED ENVIRONMENTAL POLLUTANTS, AND METHOD FOR PRODUCING SAME
  申请人：NIPPON SUISAN KAISHA, LTD.

  公开号：US20150126760A1

  公开（公告）日：2015-05-07

  A highly unsaturated fatty acid or a highly unsaturated fatty acid ethyl ester that has been produced using as a feedstock oil a fat or oil that contains highly unsaturated fatty acids as constituent fatty acids and which has been reduced in the contents of environmental pollutants, wherein among the dioxins contained, polychlorinated dibenzoparadioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) are contained in amounts of less than 0.05 pg-TEQ/g and coplanar PCBs (Co-PCBs) in amounts of less than 0.03 pg-TEQ/g. Also disclosed is a method for producing the highly unsaturated fatty acid or highly unsaturated fatty acid ethyl ester by the steps of removing free fatty acids and environmental pollutants by thin-film distillation from a feedstock oil, ethyl esterifying the resulting fat or oil, and refining the same by rectification and column chromatography.
• US9540306B2
  申请人：——

  公开号：US9540306B2

  公开（公告）日：2017-01-10
• Rapid, Photocatalytic, and Deep Debromination of Polybrominated Diphenyl Ethers on Pd-TiO₂: Intermediates and Pathways
  作者：Lina Li、Wei Chang、Ying Wang、Hongwei Ji、Chuncheng Chen、Wanhong Ma、Jincai Zhao

  DOI：10.1002/chem.201402477

  日期：2014.8.25

  significant difference between the Pd–TiO2 and pristine TiO2 systems, and much less position selectivity for the debromination on Pd–TiO2 was observed than that on the pristine TiO2 surface. For another polybrominated diphenyl ether (BDE15), pristine TiO2 was incapable of its photocatalytic reduction, whereas the loading of Pd enabled its debromination to diphenyl ether within 20 min. In addition, an evident

  带有表面负载钯的二氧化钛（Pd–TiO 2）在阳光或人工光源的照射下，在1 h内即可轻松地从十溴二苯醚（BDE209）中去除所有十个溴原子。相比之下，即使经过长时间照射（5小时），在原始TiO 2上也可以消除少于三个的溴原子。此外，在光催化脱溴过程中，所形成的BDE中间体在Pd-TiO 2和原始TiO 2体系之间显示出显着差异，并且观察到的脱溴在Pd-TiO 2上的位置选择性比在原始TiO 2表面上的位置选择性小得多。。对于另一种多溴二苯醚（BDE15），原始TiO2不能进行光催化还原，而Pd的负载使其能够在20分钟内脱溴成二苯醚。此外，在Pd-TiO 2上光催化脱溴BDE15出现了明显的诱导期。实验表明，Pd共催化作用会显着改变光催化还原性脱溴途径。