1,2-di-O-benzylpropane-1,2-diol

• 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: 1,2-di-O-benzylpropane-1,2-diol
• 英文别名: 1,2-dibenzyloxypropane；1-Phenylmethoxypropan-2-yloxymethylbenzene
• 化学式: C₁₇H₂₀O₂
• 分子量: 256.345
• InChiKey: JYBQZRNPJUQRMW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  19
• 可旋转键数：
  7
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  1,2-丙二醇 、 氯化苄 在 sodium hydroxide 、 四丁基硫酸氢铵 作用下， 以 苯 为溶剂， 反应 3.0h， 以62%的产率得到1,2-di-O-benzylpropane-1,2-diol
  参考文献：
  名称：

  Electron-transfer reduction of selected alcohols with alkalide K−, K+(15-crown-5)2 via organometallic intermediates

  摘要：

  The course of the reaction of alkalide K-, K+(15-crown-5)(2) 1 with selected alcohols depends on the kind of alcohol and the mode of substrate delivery. In the case of methanol, potassium methoxide formed initially undergoes destruction at the excess of 1. It results in potassium oxide and methylpotassium. The latter opens the crown ether ring giving potassium tetraethylene glycoxide vinyl ether and methane. A similar course of the process is observed for propanol. Potassium glycidoxide is the main product formed in the reaction of 1 with glycidol. Its oxirane ring is opened at the excess of 1. Organopotassium alkoxides, i.e., potassium potassiomethoxide and dipotassium potassiopropane-1,2-dioxide are intermediate products of this reaction. They react then with the crown ether. Potassium methoxide, potassium enolate of acetaldehyde, dipotassium, propane-1,2-dioxide and potassium tetraethylene glycoxide vinyl ether are the final products of this process. (C) 2004 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2004.04.026

文献信息

• Polycarbonate resin composition
  申请人：MITSUBISHI ENGINEERING-PLASTICS CORPORATION

  公开号：EP0753540A2

  公开（公告）日：1997-01-15

  A polycarbonate resin composition according to the present invention is suited to be used for medical supplies or appliances and shows a very low yellow discoloration when exposed to an ionizing radiation for sterilization. The polycarbonate resin composition comprises 100 parts by weight of a polycarbonate resin; 0.01 to 5 parts by weight of an aromatic compound containing oxy group or carbonyl group; and 0.01 to 5 parts by weight of at least one compound selected from the group consisting of: (A) a compound containing cyclic acetal group; (B) a sulfone compound; (C) a sulfoxide compound; (D) polyalkylene glycol, an ether of polyalkylene glycol or an ester of polyalkylene glycol; (E) a compound containing sulfonate group; and (F) an aromatic hydrocarbon-aldehyde resin.

  根据本发明的一种聚碳酸酯树脂组合物适合用于医疗用品或器具，在暴露于电离辐射灭菌时，黄色褪色程度很低。聚碳酸酯树脂组合物包括 100 重量份的聚碳酸酯树脂；0.01 至 5 重量份的含氧基或羰基的芳香族化合物；以及 0.(A) 含环缩醛基团的化合物；(B) 砜化合物；(C) 亚砜化合物；(D) 聚亚烷基二醇、聚亚烷基二醇的醚或聚亚烷基二醇的酯；(E) 含磺酸基团的化合物；(F) 芳香烃-醛树脂。
• Polycarbonate resin composition stabilized against radiation
  申请人：MITSUBISHI ENGINEERING-PLASTICS CORPORATION

  公开号：EP0794218A2

  公开（公告）日：1997-09-10

  The present invention relates to a polycarbonate resin composition comprising 100 parts by weight of a polycarbonate resin; 0.01 to 5 parts by weight of a compound containing oxymethylene unit, a compound containing oxymethylene unit having substituent or a cyclic ether compound having substituent.

  本发明涉及一种聚碳酸酯树脂组合物，该组合物包括 100 重量份的聚碳酸酯树脂； 0.01 至 5 重量份的含氧亚甲基单元的化合物、含氧亚甲基单元且具有取代基的化合物或 具有取代基的环醚化合物。
• POLYCARBONATE RESIN COMPOSITION AND MEDICAL INSTRUMENT COMPRISING THE SAME
  申请人：MITSUBISHI ENGINEERING-PLASTICS CORPORATION

  公开号：EP1829927A1

  公开（公告）日：2007-09-05

  The present invention relates to a polycarbonate resin composition which comprises an aromatic polycarbonate resin (A) and a colorant (B) and which has such a property that a molded test specimen comprising said polycarbonate resin composition and having a thickness of 3 mm is exposed to 25 kGy of a cobalt-60 gamma radiation, and the b value of test specimen measured by the Hunter's Lab method after 7 days from the exposure is not more than 2. A molded product comprising the said polycarbonate resin composition is invisible in the yellow discoloration and excellent in the transparency even though it is exposed to 25 kGy of a cobalt-60 gamma radiation for sterilization, especially excellent in such a transparency that the fluid level and color of content such as a medicinal solution or blood in a medical appliance can be easily confirmed, and also is small in mechanical properties deterioration. Therefore, the molded product is suitably used for medical appliances.

  本发明涉及一种聚碳酸酯树脂组合物，它由芳香族聚碳酸酯树脂（A）和着色剂（B）组成，具有如下特性：将由所述聚碳酸酯树脂组合物组成且厚度为 3 毫米的模制试样暴露于 25 kGy 的钴-60 伽马辐射中，暴露 7 天后用亨特实验室方法测量的试样 b 值不超过 2。由上述聚碳酸酯树脂组合物构成的模塑产品，即使暴露于 25 kGy 的钴-60 伽马辐射灭菌，也不会出现黄色变色，而且透明度极佳，尤其是透明度极佳，可以轻松确认医疗器械中药液或血液等内容物的液面和颜色，而且机械性能劣化程度小。因此，这种模制产品非常适合用于医疗器械。
• HETEROPHASIC PROPYLENE POLYMERIC MATERIAL
  申请人：Sumitomo Chemical Company, Limited

  公开号：EP3495420A1

  公开（公告）日：2019-06-12

  A heterophasic propylene polymerization material comprising a propylene homopolymer component or a specific propylene copolymer component, and a specific ethylene-α-olefin copolymer component, in which (i) the amount of the xylene-soluble component is 40% by weight or more, (ii) the limiting viscosity [η]CXIS of the xylene-insoluble component is 1.50 dL/g or more, (iii) the ratio of the limiting viscosity [η]CXS of the xylene-soluble component to the limiting viscosity [η]CXIS of the xylene-insoluble component is 1.5 or less, and (iv) the content of monomer units derived from ethylene and α-olefins having 4 to 12 carbon atoms in the xylene-insoluble component is 6% by weight or more.

  一种异相丙烯聚合材料，包括丙烯均聚物组分或特定丙烯共聚物组分，以及特定乙烯-α-烯烃共聚物组分，其中(i)二甲苯可溶组分的量为40%（重量）或以上，(ii)二甲苯不溶组分的极限粘度[η]CXIS为1.(iii) 二甲苯可溶组分的极限粘度[η]CXS 与二甲苯不溶组分的极限粘度[η]CXIS 之比为 1.5 或以下，以及 (iv) 二甲苯不溶组分中来自乙烯和具有 4 至 12 个碳原子的 α-烯烃的单体单元的含量为 6%（重量比）或以上。
• THERMOPLASTIC ELASTOMER COMPOSITION AND METHOD OF PRODUCING THE SAME
  申请人：SUMITOMO CHEMICAL COMPANY, LIMITED

  公开号：EP3744784A1

  公开（公告）日：2020-12-02

  There is provided a thermoplastic elastomer composition from which a molded article having an appearance suitable for non-painting use can be produced. In the thermoplastic elastomer composition containing at least two olefin polymers, a content of an insoluble component in ortho-dichlorobenzene at 140°C is 20 wt% to 50 wt% and an isothermal crystallization time measured at 130°C is 300 seconds or longer.

  本发明提供了一种热塑性弹性体组合物，用该组合物可以生产出外观适用于非涂漆用途的模塑制品。在含有至少两种烯烃聚合物的热塑性弹性体组合物中，140°C 时邻二氯苯中的不溶组分含量为 20 wt% 至 50 wt%，130°C 时的等温结晶时间为 300 秒或更长。