4-benzoyloxy-2,3,5,6-tetrachloro-phenol | 21250-69-1

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 缩酚酸和缩酚酸环醚类
• 英文名称: 4-benzoyloxy-2,3,5,6-tetrachloro-phenol
• 英文别名: 4-Benzoyloxy-2,3,5,6-tetrachlor-phenol；(2,3,5,6-Tetrachloro-4-hydroxyphenyl) benzoate
• CAS: 21250-69-1
• 化学式: C₁₃H₆Cl₄O₃
• 分子量: 352.001
• InChiKey: DKYHORRBQWVXFX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.5
• 重原子数：
  20
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  四氯苯醌 、 苯甲醛 生成 4-benzoyloxy-2,3,5,6-tetrachloro-phenol
  参考文献：
  名称：

  48.在苯醌中光化学加苯甲醛

  摘要：

  DOI：

  10.1039/jr9530000238

文献信息

• Process for production of vinyl chloride polymer
  申请人：Shin-Etsu Chemical Co., Ltd.

  公开号：EP0172427A2

  公开（公告）日：1986-02-26

  This process is a process for production of a vinyl chloride polymer by suspension polymerization or emulsion polymerization of vinyl chloride monomer or a mixture of vinyl chloride monomer with a vinyl monomer copolymerizable with said vinyl chloride monomer in an aqueous medium, characterized in that the polymerization is carried out in a polymerizer, the inner wall surface and portions of the auxiliary equipment thereof which may come into contact with the monomer during polymerization being previously coated with a scaling preventive comprising at least one selected from dyes, pigments and aromatic or heterocyclic compounds having at least 5 conjugated π bonds, while controlling the chloride ion concentration in the reaction mixture to not higher than 100 ppm. According to said process, scaling onto the inner wall surface of a polymerizer, etc. during polymerization can be prevented effectively and surely.

  该工艺是通过氯乙烯单体或氯乙烯单体与可与所述氯乙烯单体共聚的乙烯基单体混合物在水介质中进行悬浮聚合或乳液聚合来生产氯乙烯聚合物的工艺，其特征在于聚合是在聚合器中进行的、内壁表面及其辅助设备中可能在聚合过程中与单体接触的部分事先涂上一层防垢剂，该防垢剂至少包括一种选自染料、颜料和至少有 5 个共轭 π 键的芳香族或杂环化合物的防垢剂，同时控制反应混合物中的氯离子浓度不高于 100 ppm。根据上述工艺，可有效、可靠地防止聚合过程中聚合器等内壁表面结垢。
• US4757124A
  申请人：——

  公开号：US4757124A

  公开（公告）日：1988-07-12
• US4758639A
  申请人：——

  公开号：US4758639A

  公开（公告）日：1988-07-19