3,4,5-tribromophenol | 116434-90-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 英文名称: 3,4,5-tribromophenol
• 英文别名: 3,4,5-tribromo-phenol；3,4,5-Tribrom-phenol
• CAS: 116434-90-3
• 化学式: C₆H₃Br₃O
• mdl: MFCD03658866
• 分子量: 330.801
• InChiKey: KAVNMOZXRFSVPM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  10
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  3,4,5-tribromophenol 在 sodium hydroxide 、 硝酸 作用下， 生成 3,4,5-tribromo-2,6-dinitro-anisole
  参考文献：
  名称：

  Kohn; Soltesz, Monatshefte fur Chemie, 1925, vol. 46, p. 250

  摘要：

  DOI：
• 作为产物：
  描述：

  3,4,5-三溴苯胺 在 三氟乙酸 、 sodium nitrite 、 硫酸 、 sodium sulfate 作用下， 反应 0.83h， 以68%的产率得到3,4,5-tribromophenol
  参考文献：
  名称：

  Synthesis of Polybrominated Diphenyl Ethers and Their Capacity to Induce CYP1A by the Ah Receptor Mediated Pathway

  摘要：

  Polybrominated diphenyl ethers (PBDEs) have become widely distributed as environmental contaminants due to their use as flame retardants. Their structural similarity to other halogenated aromatic pollutants has led to speculation that they might share toxicological properties such as hepatic enzyme induction. In this work we synthesized a number of PBDE congeners, studied their affinity for rat hepatic Ah receptor through competitive binding assays, and determined their ability to induce hepatic cytochrome P-450 enzymes by means of EROD (ethoxyresorufin-O-deethylase) assays in human, rat, chick, and rainbow trout cells. Both pure PBDE congeners and commercial PBDE mixtures had Ah receptor binding affinities 10(-2)-10(-5) times that of 2,3,7,8-tetrachlorodibenzo-p-dioxin. In contrast with polychlorinated biphenyls, Ah receptor binding affinities of PBDEs could not be related to the planarity of the molecule, possibly because the large size of the bromine atoms expands the Ah receptor's binding site. EROD activities of the PBDE congeners followed a similar rank order in all cells. Some congeners, notably PBDE 85, did not follow the usual trend in which strength of Ah receptor binding affinity paralleled P-450 induction potency. Use of the gel retardation assay with a synthetic oligonucleotide indicated that in these cases the liganded Ah receptor failed to bind to the DNA recognition Sequence.

  DOI：

  10.1021/es0107475

文献信息

• Unit Cell Indexing of Luminescent Tantalum Zinc Oxide
  作者：Santosh K. Kurinec、Philip D. Rack、Michael D. Potter、Thomas N. Blanton

  DOI：10.1557/jmr.2000.0191

  日期：2000.6

  Tantalum zinc oxide (TZO) with the chemical formula Ta₂Zn₃O₈ can be generated from the reaction of 3 mol ZnO and 1 mol Ta₂O₅ at elevated temperatures. This phase has been shown to exhibit blue cathodoluminescence at low electron beam voltages. It has also been realized in thin film form on silicon substrate, making TZO an important material for monolithic field emission display devices. The structure type of TZO has been investigated using powder x-ray diffraction techniques. The unit cell of this phase has been determined and found to be monoclinic. These results allow for indexing of the powder pattern first reported by Kasper in 1967 and correct for a discrepancy in the single-crystal structure lattice constants reported by Waburg and Muller-Buschbaum in 1984.

  化学式为 Ta2Zn3O8 的氧化钽锌（TZO）可由 3 mol ZnO 和 1 mol Ta2O5 在高温下反应生成。研究表明，这种物相在低电子束电压下可发出蓝色阴极荧光。它还能在硅衬底上形成薄膜，使 TZO 成为单片场发射显示设备的重要材料。我们使用粉末 X 射线衍射技术研究了 TZO 的结构类型。经测定，该相的单胞为单斜。根据这些结果，可以对 Kasper 于 1967 年首次报告的粉末图案进行索引，并纠正了 Waburg 和 Muller-Buschbaum 于 1984 年报告的单晶结构晶格常数的偏差。
• Adsorption and Kinetic Effects on Crack Growth in MnZn Ferrites
  作者：M. A. H. Donners、L. J. M. G. Dortmans、G. de With

  DOI：10.1557/jmr.2000.0200

  日期：2000.6

  The variation of the fracture toughness of MnZn ferrite ceramics with varying loading rate and humidity was determined with the aid of the single edge notched beam (SENB) test. A strong decrease with increasing humidity and decreasing loading rate was observed. A model for subcritical crack growth incorporating kinetic and adsorption effects was formulated to analyze the data. The value of the adsorptioncontrolled fracture toughness was determined independently by double torsion experiments and agreed favorably with the values as determined from the SENB data using the model. The strength of the material was determined, and analysis showed a strength behavior similar to the fracture toughness behavior, as predicted by the model. The analysis presented can be used to assess the subcritical crack growth behavior using a limited number of SENB specimens.

  借助单边缺口梁（SENB）试验，测定了锰锌铁氧体陶瓷的断裂韧性随加载速率和湿度的变化而变化。结果表明，随着湿度的增加和加载速率的降低，锰锌铁氧体陶瓷的断裂韧性显著降低。为了分析这些数据，建立了一个包含动力学效应和吸附效应的亚临界裂纹生长模型。通过双扭转实验独立测定了吸附控制的断裂韧性值，该值与使用该模型从 SENB 数据中测定的值相吻合。对材料的强度进行了测定，分析表明其强度行为与断裂韧性行为类似，正如模型所预测的那样。所做的分析可用于评估使用有限数量 SENB 试样的亚临界裂纹生长行为。
• Process for producing compound, catalyst component for addition polymerization, process for producing catalyst for addition polymerization, and process for producing addition polymer
  申请人：Oshima Hideki

  公开号：US20050222351A1

  公开（公告）日：2005-10-06

  There are provided (1) a process for producing a compound, which comprises the step of contacting a compound (A) defined by the formula, M 1 L 1 3 , a compound (B) defined by the formula, R 1 t-1 TH, and a compound (C) defined by the formula, R 2 t-2 TH 2 ; (2) a catalyst component for addition polymerization, which comprises a compound produced by said process; (3) a process for producing a polymerization catalyst, which comprises the step of contacting said catalyst component with a transition metal compound and an optional organoaluminum compound; and (4) a process for producing an addition polymer, which comprises the step of addition polymerizing an addition polymerizable monomer in the presence of a catalyst produced by said process.

  提供以下内容：（1）生产化合物的过程，包括将由M1L13公式定义的化合物（A）、由R1t-1TH公式定义的化合物（B）和由R2t-2TH2公式定义的化合物（C）接触的步骤；（2）用于加成聚合的催化剂组分，包括通过上述过程产生的化合物；（3）生产聚合催化剂的过程，包括将催化剂组分与过渡金属化合物和可选的有机铝化合物接触的步骤；（4）生产加成聚合物的过程，包括在上述过程产生的催化剂存在下加成聚合可聚合单体的步骤。
• TRANSITION METAL COMPOUND AND CATALYST FOR OLEFIN POLYMERIZATION
  申请人：HANAOKA Hidenori

  公开号：US20110319578A1

  公开（公告）日：2011-12-29

  A transition metal compound represented by the formula (1-1) or the formula (1-2) (M is a transition metal atom) and a process for producing a catalyst for olefin polymerization comprising a step of bringing the transition metal compound into contact with a co-catalytic component for activation.

  一种由化学式(1-1)或化学式(1-2)所代表的过渡金属化合物（其中M是一种过渡金属原子）和制备催化剂的方法，包括将该过渡金属化合物与协同催化剂成分接触以激活的步骤。
• Peptides capable of inhibiting the activity of HIV protease, their preparation and their therapeutic use
  申请人：SANKYO COMPANY LIMITED

  公开号：EP0587311A1

  公开（公告）日：1994-03-16

  Compounds of formula (I) : [wherein: R¹ is hydrogen, alkyl, aralkyl, -CORa, -CORb, -CSRa, -CSRb, -SO₂Rb, -CONHRb, -CSNHRb, -CONRbRb or -CSNRbRb; R² is hydrogen or alkyl; R³ is hydrogen, alkylidene, substituted alkyl, or Rb; R⁴ is optionally substituted alkyl, cycloalkyl, or aryl; R⁵ is RbO-, RbRbN-, RbHN-, aralkyloxycarbonyloxy or aralkyloxycarbonylamino, or R⁵ is -(CH₂)p-D-(CH₂)r- [where D is a single bond, carbonyl, oxygen, sulphur, -NH-, -(CH₂=CH₂)- or -NHCO-; and p and r are each 0 or an integer from 1 to 5]; A is -(CH₂)m-B-(CH₂)n- [where B is a single bond, carbonyl, oxygen, sulphur, -NH-, -(CH₂=CH₂)- or -NHCO-; and m and n are each 0 or an integer from 1 to 5]; Ra is alkoxy, aralkyloxy, aryloxy or alkoxycarbonyl; Rb is optionally substituted alkyl, cycloalkyl, heterocyclic, aryl or arylalkenyl]; and pharmaceutically acceptable salts and esters thereof and pro-drugs therefor, have the ability to inhibit the activity of HIV protease and may thus be used for the treatment and prophylaxis of AIDS.

  化合物的化学式为(I)：[其中：R¹为氢，烷基，芳基烷基，-CORa，-CORb，-CSRa，-CSRb，-SO₂Rb，-CONHRb，-CSNHRb，-CONRbRb或-CSNRbRb；R²为氢或烷基；R³为氢，烷基亚甲基，取代烷基或Rb；R⁴为可选取代的烷基，环烷基或芳基；R⁵为RbO-，RbRbN-，RbHN-，芳基烷氧羰氧基氧或芳基烷氧羰氨基，或R⁵为-(CH₂)p-D-(CH₂)r- [其中D为单键，酰基，氧，硫，-NH-，-(CH₂=CH₂)-或-NHCO-；p和r分别为0或1到5的整数]；A为-(CH₂)m-B-(CH₂)n- [其中B为单键，酰基，氧，硫，-NH-，-(CH₂=CH₂)-或-NHCO-；m和n分别为0或1到5的整数]；Ra为烷氧基，芳基烷氧基，芳氧基或烷氧羰基；Rb为可选取代的烷基，环烷基，杂环，芳基或芳基烷烯基]；以及其药学上可接受的盐和酯以及其前药，具有抑制HIV蛋白酶活性的能力，因此可用于治疗和预防艾滋病。