2-bromo-3,5-dimethyl-hydroquinone | 409316-82-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 英文名称: 2-bromo-3,5-dimethyl-hydroquinone
• 英文别名: 4-Brom-2.5-dihydroxy-m-xylol；2-Brom-3,5-dimethyl-hydrochinon；1,4-Benzenediol, 2-bromo-3,5-dimethyl-；2-bromo-3,5-dimethylbenzene-1,4-diol
• CAS: 409316-82-1
• 化学式: C₈H₉BrO₂
• 分子量: 217.062
• InChiKey: WQOUHYODKULQOU-UHFFFAOYSA-N

物化性质

• 沸点：
  299.1±35.0 °C(Predicted)
• 密度：
  1.607±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  11
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  40.5
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-bromo-3,5-dimethyl-hydroquinone 在 4-二甲氨基吡啶 、 N-溴代丁二酰亚胺(NBS) 、 甲烷磺酸 、 1-羟基苯并三唑 、 2,3-二脱氧胞啶 作用下， 以 水 、 乙腈 为溶剂， 反应 3.0h， 生成 (S)-3-{4-[Bis-(2-chloro-ethyl)-amino]-phenyl}-2-[3-(5-bromo-2,4-dimethyl-3,6-dioxo-cyclohexa-1,4-dienyl)-3-methyl-butyrylamino]-propionic acid methyl ester
  参考文献：
  名称：

  Weerapreeyakul, Natthida; Visser, Petra; Brummelhuis, Mathijn, Medicinal Chemistry Research, 2000, vol. 10, # 3, p. 148 - 163

  摘要：

  DOI：
• 作为产物：
  描述：

  2,6-二甲基-2,5-环己二烯-1,4-二酮 在 盐酸 、 溴 、 溶剂黄146 、 tin(ll) chloride 作用下， 生成 2-bromo-3,5-dimethyl-hydroquinone
  参考文献：
  名称：

  The Reaction between Quinones and Metallic Enolates. XX.¹ Second Paper on Bromotrimethylquinone and Sodio Malonic Esters

  摘要：

  DOI：

  10.1021/ja01209a056

文献信息

• MODIFIER FOR AROMATIC POLYESTER AND AROMATIC POLYESTER RESIN COMPOSITION COMPRISING THE SAME
  申请人：TABATA Masayoshi

  公开号：US20110224343A1

  公开（公告）日：2011-09-15

  The present invention provides a modifier for aromatic polyesters which enhances the melt fluidity of aromatic polyesters without a significant decrease in the heat resistance of the aromatic polyesters, and an aromatic polyester resin composition including the modifier for aromatic polyesters. The present invention relates to a modifier for aromatic polyesters comprising polyhydric phenol residues and residues of aromatic polycarboxylic acid, acid halide or acid anhydride thereof, and the modifier comprises a material having a structure composed of a first residue selected from the group consisting of divalent residues represented by Formula (I): —Ar—W 1 x —Ar— and by Formula (II): —Ar—, the first residues being bonded to two identical or different second residues selected from the group consisting of monovalent residues represented by Formula (III): and monovalent residues represented by Formula (IV): —O—C(O)—R 7 —.

  本发明提供了一种用于芳香族聚酯的改性剂，可以增强芳香族聚酯的熔融流动性，而不明显降低芳香族聚酯的耐热性，以及包括该改性剂的芳香族聚酯树脂组合物。本发明涉及一种用于芳香族聚酯的改性剂，包括多羟基酚残基和芳香族多羧酸、酸卤或其酸酐残基，该改性剂包括具有以下结构的材料：第一残基，选择自由式(I)所代表的二价残基：—Ar—W1x—Ar—和自由式(II)所代表的：—Ar—，第一残基与选择自由式(III)所代表的单价残基：和自由式(IV)所代表的单价残基：—O—C(O)—R7—的两个相同或不同的第二残基结合。
• Process for synthesizing d-tocotrienols
  申请人：Couladouros A. Elias

  公开号：US20050124687A1

  公开（公告）日：2005-06-09

  A process of forming a d-tocotrienols from a (2S) 2-hydroxymethyl-6-hydroxy-alkylchroman compound, through reaction with a farnesyl Grignard or sulfone compound. Various methods of making the (2S) 2-hydroxymethyl-6-hydroxy-alklychroman compound are disclosed.

  一种从（2S）2-羟甲基-6-羟基-烷基香兰素化合物通过与法尼烯基格氏试剂或磺酰化合物反应形成d-生育醇的过程。公开了制备（2S）2-羟甲基-6-羟基-烷基香兰素化合物的各种方法。
• AROMATIC POLYESTER
  申请人：Muroran Institute of Technology

  公开号：EP2479203A1

  公开（公告）日：2012-07-25

  The present invention provides an aromatic polyester which is substantially free from the occurrence of coloration and retains significantly high transparency even after being thermally processed at high temperature and which has high flowability. The aromatic polyester contains a polyhydric phenol residue and a residue of any one of aromatic polycarboxylic acid, halide thereof, and anhydride thereof, and terminals of the aromatic polyester have a structure represented by the formula -C(O)-R. The aromatic polyester has an end-capping rate of 90% or higher and a weight average molecular weight (Mw) ranging from 3,000 to 1,000,000.

  本发明提供了一种芳香族聚酯，该聚酯基本上不会发生着色，即使在高温热加工后仍能保持明显的高透明度，并且具有高流动性。芳香族聚酯含有多羟基苯酚残留物和芳香族多羧酸、其卤化物和其酸酐中任意一种的残留物，芳香族聚酯的端基具有式 -C(O)-R 所代表的结构。芳香族聚酯的端盖率为 90% 或更高，重量平均分子量（Mw）为 3,000 至 1,000,000 之间。
• Process for synthesizing d-tocotrienols from 2-vinylchromane compound
  申请人：Couladouros A. Elias

  公开号：US20050124688A1

  公开（公告）日：2005-06-09

  A process of forming a d-tocotrienol from a (2S)-vinylchromane compound, through hydroboration of the (2S)-vinylchromane to provide an organoborane, followed by coupling the organoborane with a halogenated C-14 sidechain compound under conditions of palladium-catalyzed cross-coupling is taught. Methods for providing the (2S)-vinylchromane compound and the halogenated C-14 compound are disclosed.

  本发明教导了一种由(2S)-乙烯基铬烷化合物形成 d-生育三烯酚的工艺，通过对(2S)-乙烯基铬烷进行氢硼化合以提供有机硼烷，然后在钯催化交叉偶联条件下将有机硼烷与卤化 C-14 侧链化合物偶联。还公开了提供(2S)-乙烯基铬烷化合物和卤代 C-14 化合物的方法。
• Gharat, Laxmikant; Visser, Petra; Brummelhuis, Mathijn, Medicinal Chemistry Research, 1998, vol. 8, # 7-8, p. 444 - 456
  作者：Gharat, Laxmikant、Visser, Petra、Brummelhuis, Mathijn、Guiles, Ronald、Chikhale, Prashant

  DOI：——

  日期：——