trans-1-(2.4-dinitro-phenyl)-2-(naphthyl-(1))-ethylene | 251903-95-4

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 英文名称: trans-1-(2.4-dinitro-phenyl)-2-(naphthyl-(1))-ethylene
• 英文别名: trans-1-(2.4-Dinitro-phenyl)-2-(naphthyl-(1))-aethylen；Naphthalene, 1-(2,4-dinitrostyryl)-；1-[(E)-2-(2,4-dinitrophenyl)ethenyl]naphthalene
• CAS: 251903-95-4
• 化学式: C₁₈H₁₂N₂O₄
• 分子量: 320.304
• InChiKey: PIBSPTNFNZNNJZ-CMDGGOBGSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.1
• 重原子数：
  24
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  91.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  trans-1-(2.4-dinitro-phenyl)-2-(naphthyl-(1))-ethylene 在 sodium azide 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 20.0h， 以75%的产率得到2-[(E)-2-naphthalen-1-ylethenyl]-5-nitroaniline
  参考文献：
  名称：

  A novel regioselective method for aminostilbene preparation—the role of sodium azide

  摘要：

  The reaction between a derivative of 2,4-dinitrostilbene and sodium azide gave consistently 2-amino-4-nitrostilbenes as the sole products instead of the expected azidonitrostilbene. Based on this finding, we present a one-step preparative method for selective transformation of the ortho-NO2 group in (E)-2,4-dinitrostilbenes into an ortho-NH2 group to give (E)-2-amino-4-nitrostilbenes. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2012.09.066
• 作为产物：
  描述：

  萘 在 哌啶 、 盐酸 、 乙醇 、 乌洛托品 、 硫酸 、 溶剂黄146 作用下， 生成 trans-1-(2.4-dinitro-phenyl)-2-(naphthyl-(1))-ethylene
  参考文献：
  名称：

  衍生出5-溴-1-萘醛和1-萘酚。（3. Mitteilungüber萘乙醛）

  摘要：

  DOI：

  10.1002/hlca.194102401159

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。
• Polymerization process characterized by a two layer coating against scale formation deposited using a steam carrier
  申请人：SHIN-ETSU CHEMICAL CO., LTD.

  公开号：EP0934955A1

  公开（公告）日：1999-08-11

  An improved process for producing a polymer by polymerizing a monomer having an ethylenic double bond in a polymerization vessel having a polymer scale preventive coating film on its inner wall surfaces, etc. is provided. The coating film is formed by coating a first coating liquid containing a compound selected from the group consisting of an aromatic compound having 5 or more conjugated π bonds and a heterocyclic compound having 5 or more conjugated π bonds, and then coating a second coating liquid on the first layer. The first and second coating liquids are applied by means of steam as a carrier. The second layer has a surface having a contact angle to water of less than 60° after its surface has been brought into contact with a solution of mixture of water and a vinyl chloride monomer in a weight ratio of 1:1, at 50°C for 1 hour. This process can shorten the time for forming the coating film to improve productivity, can improve the effect of preventing adhesion of polymer scale, can make colored particles less mix into polymer products obtained by this process, can lessen fish eyes and initial discoloring of formed products and can improve the quality of polymeric products and their formed or molded products.

  本发明提供了一种通过在聚合容器中聚合具有乙烯双键的单体来生产聚合物的改进工艺，该聚合容器的内壁表面等处具有聚合物防垢涂膜。该涂膜是通过涂覆第一涂覆液形成的，第一涂覆液含有选自具有 5 个或更多共轭 π 键的芳香族化合物和具有 5 个或更多共轭 π 键的杂环化合物的一组化合物，然后在第一层上涂覆第二涂覆液。第一种和第二种涂覆液通过蒸汽作为载体进行涂覆。第二层表面与水和氯乙烯单体重量比为 1:1 的混合物溶液在 50°C 下接触 1 小时后，其表面与水的接触角小于 60°。这种工艺可以缩短涂膜的形成时间，从而提高生产率；可以提高防止聚合物鳞片附着的效果；可以使有色颗粒较少地混入通过这种工艺获得的聚合物产品中；可以减少成型产品的鱼眼和初期褪色现象；可以提高聚合物产品及其成型或模塑产品的质量。
• Process for producing a polymer by polymerization of a monomer having an ethylenic double bond
  申请人：SHIN-ETSU CHEMICAL CO., LTD.

  公开号：EP1063242A1

  公开（公告）日：2000-12-27

  A process for producing a polymer by polymerizing in a polymerization vessel a monomer having an ethylenic double bond is provided. In this process, the polymerization vessel has a polymer scale preventive coating film on its inner wall surfaces and other surfaces with which the monomer comes into contact during polymerization. The coating film is formed by coating a first coating liquid containing a compound selected from the group consisting of an aromatic compound having 5 or more conjugated π bonds and a heterocyclic compound having 5 or more conjugated π bonds and a second coating liquid containing at least one hydrophilic compound selected from the group consisting of a water-soluble polymeric compound, an inorganic colloid, an inorganic salt and an acid; the first coating liquid and the second coating liquid being simultaneously coated by means of steam as a carrier. This process can shorten the time for forming coating films of scale preventive agents to improve productivity, can improve the effect of preventing scales, can make colored particles less mix into polymer products obtained by this process, can lessen fish eyes and initial discoloring of formed products and can improve the quality of polymeric products and their formed or molded products.

  提供了一种通过在聚合容器中聚合具有乙烯双键的单体来生产聚合物的工艺。在该工艺中，聚合容器的内壁表面和聚合过程中单体接触的其他表面上有一层聚合物防垢涂膜。涂膜是通过涂覆第一涂覆液和第二涂覆液形成的，第一涂覆液含有一种选自具有 5 个或更多共轭 π 键的芳香族化合物和具有 5 个或更多共轭 π 键的杂环化合物的化合物，第二涂覆液含有至少一种选自水溶性高分子化合物、无机胶体、无机盐和酸的亲水性化合物；第一涂覆液和第二涂覆液通过蒸汽作为载体同时涂覆。这种工艺可以缩短防垢剂形成涂膜的时间以提高生产率，可以提高防垢效果，可以使有色颗粒较少地混入通过该工艺获得的聚合物产品中，可以减少成型产品的鱼眼和初始变色，可以提高聚合物产品及其成型或模塑产品的质量。
• Polymerisation process in a reactor with double coating against scale formation
  申请人：SHIN-ETSU CHEMICAL CO., LTD.

  公开号：EP1043338A1

  公开（公告）日：2000-10-11

  An improved process for producing a polymer by polymerizing a monomer having an ethylenic double bond in a polymerization vessel having a polymer scale preventive coating film on its inner wall surfaces, etc. is provided. The coating film is formed by coating a first coating liquid containing a compound selected from the group consisting of an aromatic compound having 5 or more conjugated π bonds and a heterocyclic compound having 5 or more conjugated π bonds, and then coating a second coating liquid a dye and/or pigment on the first layer. The first and second coating liquids are applied by means of steam as a carrier. The second layer has a surface having a contact angle to water of less than 60° after its surface has been kept in contact with a solution of mixture of water and a vinyl chloride monomer in a weight ratio of 1:1 at 50° C for 1 hour. This process can shorten the time for forming the coating film to improve productivity, can improve the effect of preventing adhesion of polymer scale, can make colored particles less mix into polymer products obtained by this process, can lessen fish eyes and initial discoloring of formed products and can improve the quality of polymeric products and their formed or molded products.

  本发明提供了一种通过在聚合容器中聚合具有乙烯双键的单体来生产聚合物的改进工艺，该聚合容器的内壁表面等处具有聚合物防垢涂膜。涂膜的形成方法是在第一层涂上含有选自具有 5 个或更多共轭 π 键的芳香族化合物和具有 5 个或更多共轭 π 键的杂环化合物的化合物的第一涂膜液，然后在第一层上涂上染料和/或颜料的第二涂膜液。第一种和第二种涂布液是以蒸汽为载体涂布的。第二层表面与水和氯乙烯单体重量比为 1:1 的混合物溶液在 50 摄氏度下接触 1 小时后，其表面与水的接触角小于 60°。这种工艺可以缩短涂膜的形成时间以提高生产率，可以提高防止聚合物鳞片附着的效果，可以使有色颗粒较少地混入通过这种工艺获得的聚合物产品中，可以减少成型产品的鱼眼和初期褪色，可以提高聚合物产品及其成型或模塑产品的质量。
• Addition condensation product, production method and use of same, polymerization vessel, and production method of polymer
  申请人：Shin-Etsu Chemical Co., Ltd.

  公开号：US11345651B2

  公开（公告）日：2022-05-31

  Provided is an addition condensation product of an aromatic compound and a carbonyl compound. The addition condensation product includes an aromatic compound dimer in which two composition units derived from the aromatic compounds are bonded via one composition unit derived from the carbonyl compound and an aromatic compound multimer in which each of three or more composition units derived from the aromatic compounds is bonded via one composition unit derived from the carbonyl compound. A ratio of the aromatic compound dimer to the aromatic compound multimer is in the range of 1:75 to 1:1,000.

  本文提供了一种芳香族化合物与羰基化合物的加成缩合产物。该加成缩合产物包括芳香族化合物二聚体（其中两个来自芳香族化合物的组成单元通过一个来自羰基化合物的组成单元键合）和芳香族化合物多聚体（其中三个或更多来自芳香族化合物的组成单元通过一个来自羰基化合物的组成单元键合）。芳香族化合物二聚体与芳香族化合物多聚体的比例范围为 1:75 至 1:1,000。