2-bromo-4-chloro-resorcinol | 57542-76-4

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 英文名称: 2-bromo-4-chloro-resorcinol
• 英文别名: 4-Chlor-2-brom-1.3-dihydroxy-benzol；2-Brom-4-chlor-resorcin；2-Bromo-4-chlorobenzene-1,3-diol
• CAS: 57542-76-4
• 化学式: C₆H₄BrClO₂
• 分子量: 223.454
• InChiKey: VACXFGGHZNERCU-UHFFFAOYSA-N

物化性质

• 沸点：
  245.8±35.0 °C(Predicted)
• 密度：
  1.952±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 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：
  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-4-chloro-resorcinol 在 硫酸 、 水 、 溴 作用下， 生成 2,4-dibromo-6-chlororesorcinol
  参考文献：
  名称：

  Petjunin; Kutschina, Zhurnal Obshchei Khimii, 1947, vol. 17, p. 1351,1354

  摘要：

  DOI：
• 作为产物：
  描述：

  2,4-二羟基-5-氯苯甲酸 在 水 、 溴 、 溶剂黄146 作用下， 生成 2-bromo-4-chloro-resorcinol
  参考文献：
  名称：

  Petjunin; Kutschina, Zhurnal Obshchei Khimii, 1947, vol. 17, p. 1351,1354

  摘要：

  DOI：

文献信息

• Process for the preparation of halogenated (meth)acrylic esters and poly (meth) arcylates obtained with said (meth)acrylic esters
  申请人：Akzo Nobel N.V.

  公开号：EP0824096A2

  公开（公告）日：1998-02-18

  The present invention is directed to a process for the preparation of (meth)acrylates of halogenated alcohols by direct esterification of said alcohols with (meth)acrylic acid (chloride) wherein at least 2,6-substituted pyridine derivative is used as a polymerization inhibitor at room temperature or lower. Suitable at least 2,6-substituted pyridine derivatives are 2,6-lutidine, 2,4,6-collidine or 2,6-di-tert.butyl-4-methyl pyridine. With the halogenated (meth)acrylate esters prepared with the process according to the invention, very pure homo- and copolymers can be prepared, resulting in polymers having a low optical loss of 0.1 dB/cm or lower at 1300 nm and lower than 0.4 dB/cm at 1550 nm.

  本发明涉及一种通过将卤代醇与（甲基）丙烯酸（氯化物）直接酯化来制备（甲基）丙烯酸酯的方法，其中至少使用一种2,6-取代吡啶衍生物作为聚合抑制剂，温度为室温或更低。适用的至少2,6-取代吡啶衍生物包括2,6-吡啶、2,4,6-考林或2,6-二叔丁基-4-甲基吡啶。 通过根据本发明的方法制备的卤代（甲基）丙烯酸酯，可以制备非常纯净的同聚物和共聚物，从而得到在1300纳米处光学损耗低至0.1 dB/cm或更低，在1550纳米处低于0.4 dB/cm的聚合物。
• 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。
• 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。
• NLO SIDE CHAIN POLYMERS HAVING LOW OPTICAL LOSS
  申请人：Akzo Nobel N.V.

  公开号：EP0664014A1

  公开（公告）日：1995-07-26
• US8129493B2
  申请人：——

  公开号：US8129493B2

  公开（公告）日：2012-03-06