Benzene, 1,2,4-tribromo-5-ethenyl- | 24162-65-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: Benzene, 1,2,4-tribromo-5-ethenyl-
• 英文别名: 1,2,4-tribromo-5-ethenylbenzene
• CAS: 24162-65-0
• 化学式: C₈H₅Br₃
• 分子量: 340.84
• InChiKey: ZFYXTBYFHIVKEC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.8
• 重原子数：
  11
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为产物：
  描述：

  1,2,3-三溴-4-(2-溴乙基)苯 、 sodium hydroxide 、 (1,2,2-tribromovinyl)benzene 在 (1-丁基)三乙基溴化铵 、 sodium nitrite ice water 、 溴化钠 、 hydroxide 、 异丙醇 、 (1,2,2-tribromovinyl)benzene 、 正己烷 、 盐酸 、 水 、 无水氯化钙 作用下， 以 异丙醇 为溶剂， 反应 16.83h， 以62 g 2,4,5-tribromostyrene were obtained (m.p=64° C.)的产率得到Benzene, 1,2,4-tribromo-5-ethenyl-
  参考文献：
  名称：

  Production of crystalline tribromostyrene

  摘要：

  本发明涉及一种改进的晶体三溴苯乙烯生产工艺。该工艺通过使用相转移催化剂在两相体系中去除氢溴酸。其中一个使用的相是含有碱金属氢氧化物的水相，而第二个相则是在醇中包含β-溴乙基三溴苯。

  公开号：

  US04748286A1

文献信息

• Process for the bromination of polystyrenes
  申请人：FERRO CORPORATION

  公开号：EP0047549A2

  公开（公告）日：1982-03-17

  The present process is one for the production of brominated styrene oligomers and polystyrene, preferably what are essentially tribrominated polystyrenes. One preferred embodiment of the process can be summarized as consisting of: 1. dissolving polystyrene having a molecular weight of at least 20,000 in a solvent and 2. reacting the dissolved polystyrene with a stoichiometric excess of bromine chloride over that required for achieving the desired degree of bromination in the presence of up to about 15% by weight of the polystyrene of a Lewis acid catalyst at about 20°C to about 50°C. The dominant substitution pattern in the trihalogenated product is at the 2,4,5 positions, with significantly lesser amounts of other isomers including 2,3,5. There does not appear to be any 2,4,6 substitution. A very small percentage of chlorine is believed to be nuclear bound.

  本工艺是生产溴化苯乙烯低聚物和聚苯乙烯的工艺，最好是生产基本上属于三溴 化聚苯乙烯的工艺。 该工艺的一个优选实施方案可概括为： 1. 将分子量至少为 20,000 的聚苯乙烯溶解在溶剂中， 2. 2. 在约 20°C 至约 50°C 的温度下，在路易斯酸催化剂的存在下，使溶解的聚苯乙烯与达到所需溴化程度所需的溴氯化物的过量进行反应，溴氯化物的过量以聚苯乙烯重量计最多约为 15%。 三卤化产品中的主要取代形式是 2、4、5 位，其他异构体（包括 2、3、5）的数量明显较少。似乎不存在任何 2,4,6 取代。据信只有极少量的氯与核结合。
• Process and composition for stabilization of ar-brominated styrenic monomer against premature polymerization
  申请人：GE CHEMICALS, INC.

  公开号：EP0291950A1

  公开（公告）日：1988-11-23

  A process and composition for stabilizing ar-brominated styrene polymer against polymerization which mixes an ar-brominated styrene monomer with a stabilizing amount of N,N-dialkylhydroxylamine to produce a stabilized monomer and novel stabilized compositions.

  一种用于稳定芳基溴化苯乙烯聚合物以防止聚合的工艺和组合物，它将芳基溴化苯乙烯单体与稳定量的 N,N-二烷基羟胺混合，生成稳定单体和新型稳定组合物。
• Heat-resistant resin composition
  申请人：SHOWA DENKO KABUSHIKI KAISHA

  公开号：EP0348906A1

  公开（公告）日：1990-01-03

  A resin composition comprising (A) at least one heat-resistant resin, (B) at least one thermoplastic resin, (C) an antimony oxide, (D) at least one bromine-­containing reaction product selected from the group consisting of (1) a compound having a molecular weight of from 1,200 to 6,000 and a bromine content of from 5.0 to 60% by weight which is obtained by reacting a bromine-containing epoxy compound and 1,3,5-­tribromophenol, and (2) a compound obtained by reacting a bromine-containing epoxy compound having an epoxy equivalent of from 450 to 7,000 and a bromine content of from 5.0 to 52% by weight and an acrylonitrile-butadiene copolymer having a carboxyl group at the both terminals thereof and a molecular weight of from 1,000 to 10,000, and (E) at least one silicon-containing compound selected from the group consisting of (1) silicone oil, (2) a ladder silicone resin, and (3) an alkoxysilane having a mercapto group, a vinyl group or a methacryloyl group, is disclosed. The resin composition is excellent in heat resistance, impact resistance, flame retardancy, and molding properties.

  一种树脂组合物，包括(A) 至少一种耐热树脂，(B) 至少一种热塑性树脂，(C) 氧化锑，(D) 至少一种含溴反应产物，该反应产物选自以下组别：(1) 一种化合物，其分子量为 1,200 至 6,000 之间，溴含量为 5.0至60%(重量)的化合物，它是由含溴环氧化合物和1,3,5-三溴苯酚反应得到的；和(2)由含溴环氧化合物和含溴环氧化合物反应得到的化合物，含溴环氧化合物的环氧当量为450至7,000，溴含量为5.(E) 至少一种含硅化合物，选自(1)硅油，(2)阶梯硅树脂和(3)具有巯基、乙烯基或甲基丙烯酰基的烷氧基硅烷组成的组。该树脂组合物具有优异的耐热性、抗冲击性、阻燃性和成型性能。
• Polymer polyols containing halogenated aromatic monomers
  申请人：ARCO Chemical Technology, L.P.

  公开号：EP0478332A1

  公开（公告）日：1992-04-01

  Novel polymer polyols based on halogenated aromatic monomers such as tribromostyrene give polyurethane foams with improved flame retardant properties. For example, replacing conventional SAN polymer polyols with tribromostyrene (TBS)/acrylonitrile polymer polyols allows the preparation of polyurethane foams passing British Standard 5852, Part 2, Ignition Source 5 Combustion Test and having better ASTM E-906 values without the need for solid fillers such as melamine or aluminum trihydrate, although these and other flame retardant additives may be optionally employed as well. Elimination of these fillers also provides other improvements such as superior strength and better compression set properties. The TBS dispersions may also be used in conjunction with melamine to eliminate the need for liquid fire retardant additives.

  基于卤代芳香族单体（如三溴苯乙烯）的新型聚合物多元醇可使聚氨酯泡沫的阻燃性能得到改善。例如，用三溴苯乙烯（TBS）/丙烯腈聚合物多元醇取代传统的 SAN 聚合物多元醇，可以制备出通过英国标准 5852 第 2 部分点火源 5 燃烧测试的聚氨酯泡沫，并且具有更好的 ASTM E-906 值，而无需使用三聚氰胺或三水铝等固体填充剂，尽管也可以选择使用这些填充剂和其他阻燃添加剂。不使用这些填料还能带来其他方面的改进，如更高的强度和更好的压缩永久变形性能。TBS 分散体还可与三聚氰胺一起使用，从而无需使用液体阻燃添加剂。
• AROMATIC POLYCARBONATE-STYRENE POLYMER RESIN COMPOSITION
  申请人：Asahi Kasei Kogyo Kabushiki Kaisha

  公开号：EP0767215A1

  公开（公告）日：1997-04-09

  An aromatic polycarbonate-styrene polymer resin composition comprising (A) an aromatic polycarbonate, (B) a specified rubber-modified styrene polymer, and (C) a compatibilizer comprising a copolymer of aromatic vinyl monomers wherein the distribution of the proportions of the comonomer components is so heterogeneous that the copolymer is composed of copolymer molecules having different solubility parameter (SP) values, that the difference in SP value between the copolymer molecule having the largest SP value and the copolymer molecule having the smallest SP value is 0.3-1.0 [(cal/cm3)0.5], and that the average SP value of the copolymer is 10.6-11.0 [(cal/cm3)0.5]. The composition has not only high impact and heat resistances but also high melt fluidity and is useful in the fields of household electric components and OA equipment components.

  一种芳香族聚碳酸酯-苯乙烯聚合物树脂组合物，包括(A)芳香族聚碳酸酯，(B)特定橡胶改性苯乙烯聚合物，和(C)由芳香族乙烯基单体共聚物组成的相容剂，其中共聚单体组分的比例分布非常不均匀，共聚物由具有不同溶解度参数（SP）值的共聚物分子组成，具有最大 SP 值的共聚物分子与具有最小 SP 值的共聚物分子之间的 SP 值差为 0.3-1.0 [(cal/cm3)0.5] ，共聚物的平均 SP 值为 10.6-11.0 [(cal/cm3)0.5] 。3-1.0 [(cal/cm3)0.5] ，共聚物的平均 SP 值为 10.6-11.0 [(cal/cm3)0.5] 。该组合物不仅具有较高的抗冲击性和耐热性，还具有较高的熔体流动性，可用于家用电气元件和 OA 设备元件领域。