naphthalene-1,2,5,8-tetraol | 84952-09-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: naphthalene-1,2,5,8-tetraol
• 英文别名: Naphthalin-1,2,5,8-tetraol；1.2.5.8-Tetraoxy-naphthalin；Naphthalene-1,2,5,8-tetrol
• CAS: 84952-09-0
• 化学式: C₁₀H₈O₄
• 分子量: 192.171
• InChiKey: JHBCAOBRUPIFBZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  14
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  80.9
• 氢给体数：
  4
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  naphthalene-1,2,5,8-tetraol 、 乙酸酐 在 sodium acetate 作用下， 生成 (4,5,8-三乙酰氧基萘-1-基)乙酸酯
  参考文献：
  名称：

  Zincke; Schmidt, Justus Liebigs Annalen der Chemie, 1895, vol. 286, p. 43

  摘要：

  DOI：
• 作为产物：
  描述：

  4,7,8-trihydroxynaphthalene-1,2-dione 在 盐酸 、 tin(ll) chloride 作用下， 生成 naphthalene-1,2,5,8-tetraol
  参考文献：
  名称：

  484.醌。第六部分 一些新的聚羟基萘醌

  摘要：

  DOI：

  10.1039/jr9570002483

文献信息

• NAPHTHOBISCHALCOGENADIAZOLE DERIVATIVE AND PRODUCTION METHOD THEREFOR
  申请人：OSAKA UNIVERSITY

  公开号：US20190337966A1

  公开（公告）日：2019-11-07

  In order to provide a naphthobischalcogenadiazole derivative that can be used as an intermediate for producing a naphthobischalcogenadiazole compound into which a fluorine atom has been introduced, the naphthobischalcogenadiazole derivative in accordance with an aspect of the present invention is represented by a formula (I): where each of A 1 and A 2 is independently an oxygen atom, a sulfur atom, a selenium atom, or a tellurium atom; and each of X 1 and X 2 is independently a hydrogen atom, a halogen atom, a boronic acid group, a boronic acid ester group, a boronic acid diaminonaphthalene amide group, an N-methyliminodiacetic acid boronate group, a trifluoroborate salt group, or a triolborate salt group.

  为了提供一种可用作生产引入氟原子的萘基双硫/硒/碲-二唑化合物的中间体的萘基双硫/硒/碲-二唑衍生物，本发明的一个方面提供的萘基双硫/硒/碲-二唑衍生物由式(I)表示：其中，A1和A2分别独立地为氧原子、硫原子、硒原子或碲原子；X1和X2分别独立地为氢原子、卤素原子、硼酸基、硼酸酯基、硼酸二氨基萘酰胺基、N-甲基亚乙二酸硼酸酯基、三氟硼酸盐基或三羟基硼酸盐基。
• 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。
• COMPOSITE SEMIPERMEABLE MEMBRANE AND METHOD FOR PRODUCING SAME
  申请人：Toray Industries, Inc.

  公开号：EP2517782A1

  公开（公告）日：2012-10-31

  A composite semipermeable membrane comprising a porous support membrane on which a separating functional polyamide layer resulting from the polycondensation reaction of polyfunctional aromatic amines with polyfunctional acid halides is formed, wherein the separating functional polyamide layer has carboxy groups, amino groups, phenolic hydroxyl groups, and azo groups, wherein XA, the ratio of the amino groups (molar equivalent of the amino groups / (molar equivalent of the azo groups + molar equivalent of the phenolic hydroxyl groups + molar equivalent of the amino groups)) on a feed water contact surface of the separating functional polyamide layer (an A surface), is in the range 0.5 or less, and XB, the ratio of the amino groups (molar equivalent of the amino groups / (molar equivalent of the azo groups + molar equivalent of the phenolic hydroxyl groups + molar equivalent of the amino groups)) on a permeate-side surface of the separating functional polyamide layer (a B surface), i.e., the opposite side to the A surface, is in the range of 0.5 to 1. The present invention provides a composite semipermeable membrane that achieves a balance between high solute removal properties and a high permeate flow rate and has high organic-solvent resistance, and a method for producing same.

  一种复合半透膜，包括多孔支撑膜，在支撑膜上形成由多官能团芳香胺与多官能团酸卤化物缩聚反应生成的分离功能聚酰胺层，其中分离功能聚酰胺层具有羧基、氨基、酚羟基和偶氮基团，其中XA，氨基的比例（氨基的摩尔当量/偶氮基团的摩尔当量+酚羟基的摩尔当量+偶氮基团的摩尔当量）、和偶氮基团，其中 XA，在分离功能聚酰胺层的进料水接触表面（A 表面）上的氨基比例（氨基的摩尔当量/（偶氮基团的摩尔当量+酚羟基的摩尔当量+氨基的摩尔当量））在 0.5 或更低，而 XB，即分离功能聚酰胺层的渗透侧表面（B 表面），即与 A 表面相反的一侧的氨基比率（氨基的摩尔当量/（偶氮基的摩尔当量+酚羟基的摩尔当量+氨基的摩尔当量））、本发明提供了一种能在高溶质去除性能和高渗透流速之间取得平衡并具有高有机溶剂耐受性的复合半透膜，以及生产该膜的方法。
• Perkin; Weizmann, Journal of the Chemical Society, 1906, vol. 89, p. 1655
  作者：Perkin、Weizmann

  DOI：——

  日期：——
• US4757124A
  申请人：——

  公开号：US4757124A

  公开（公告）日：1988-07-12