ethylenebis(oxyethylene) bis[3-(5-tert-butyl-4-hydroxy-m-tolyl)propionate] | 34569-49-8

• 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: ethylenebis(oxyethylene) bis[3-(5-tert-butyl-4-hydroxy-m-tolyl)propionate]
• 英文别名: Triethylene glycol bis{3-(3,5-di-tert.-butyl-4-hydroxyphenyl)propionate}；2-[2-[2-[3-(3,5-Ditert-butyl-4-hydroxyphenyl)propanoyloxy]ethoxy]ethoxy]ethyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate
• CAS: 34569-49-8
• 化学式: C₄₀H₆₂O₈
• 分子量: 670.927
• InChiKey: HZQMAGZJUOWDHN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  9.5
• 重原子数：
  48
• 可旋转键数：
  21
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.65
• 拓扑面积：
  112
• 氢给体数：
  2
• 氢受体数：
  8

反应信息

• 作为产物：
  描述：

  三乙二醇 、 3-(3,5-二叔丁基-4-羟基苯基)丙酸甲酯 在 碳酸氢钠 作用下， 120.0~180.0 ℃ 、101.3 kPa 条件下， 以89 %的产率得到ethylenebis(oxyethylene) bis[3-(5-tert-butyl-4-hydroxy-m-tolyl)propionate]
  参考文献：
  名称：

  PROCESS FOR THE PREPARATION OF HYDROXYPHENYLCARBOXYLIC ACID ESTERS USING CATALYTIC TRANSESTERIFICATION

  摘要：

  A process for the preparation of hydroxyphenylcarboxylic acid esters comprising a catalytic transesterification step using alkali metal carbonates or alkali metal bicarbonates as catalysts. The transesterification process, wherein (a) a vessel is charged with a substituted phenol comprising a carboxylic methoxy ester moiety, which moiety is linked directly - or indirectly via an alkyl chain CmH2m- to the phenolic ring, and a fatty alcohol, (b) the mixture of the two components is heated above the melting point of the two components and vacuum is applied, and an alkali metal carbonate or an alkali metal bicarbonate is already present at step (b) or is added to the liquid mixture at step (c), and the transesterification reaction is allowed to happen. The use of alkali metal carbonates or alkali metal bicarbonate as catalysts leads to a safe, sustainable, environmentally friendly process, which avoids toxic side products and does not require extensive conditioning.

  公开号：

  WO2024170610A1

文献信息

• Thermostabilized copolymer composition
  申请人：SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.

  公开号：EP0289077A2

  公开（公告）日：1988-11-02

  A stabilized composition comprising an alternating copolymer of carbon monoxide and an olefinically un­saturated compound and, based on the weight of the copolymer, from 0.03 to 5.0 %w to an additive selected from phenolic dicarboxylates, and phenolic dicarbox­amides, optionally together with phenolic phosphites.

  一种稳定组合物，包括一氧化碳和烯烃不饱和化合物的交替共聚物，以及基于共聚物重量的 0.03 至 5.0 %w 的添加剂，该添加剂选自酚醛二羧酸盐和酚醛二羧酸酰胺，可选择与酚醛亚磷酸酯一起使用。
• Stabilization systems for polyacetals
  申请人：CIBA-GEIGY AG

  公开号：EP0333660A2

  公开（公告）日：1989-09-20

  A blend of a phenolic antioxidant and a hydrazine or oxamido derivative in appropriate proportions for use in stabilizing acetal homo- and copolymers against oxidative and thermal degradation.

  一种酚类抗氧化剂与肼或草酰胺衍生物按适当比例混合的混合物，用于稳定缩醛均聚物和共聚物，防止氧化和热降解。
• Oxymethylene copolymer composition
  申请人：MITSUBISHI GAS CHEMICAL COMPANY, INC.

  公开号：EP0465086A1

  公开（公告）日：1992-01-08

  An oxymethylene copolymer composition which comprises an intimate mixture containing; (A) 100 parts by weight of an oxymethylene copolymer, (B) 0.01 to 2 parts by weight of an ester composed of a polyhydric alcohol having 2 to 10 carbon atoms and a higher fatty acid having 22 to 32 carbon atoms, and (C) 0.01 to 3 parts by weight of an alkaline earth metal salt of a fatty acid having 12 to 35 carbon atoms.

  一种氧亚甲基共聚物组合物，由含有以下成分的亲密混合物组成： (A) 100 份(重量)氧亚甲基共聚物、 (B) 0.01 至 2 份（按重量计）由具有 2 至 10 个碳原子的多元醇和具有 22 至 32 个碳原子的高级脂肪酸组成的酯，和 (C) 0.01 至 3 份（重量）具有 12 至 35 个碳原子的脂肪酸的碱土金属盐。
• Prevention of oxidation in petrochemical extraction solvents
  申请人：CIBA-GEIGY AG

  公开号：EP0467843A2

  公开（公告）日：1992-01-22

  A wide variety of hindered phenolic compounds are effective as antioxidant stabilizers to prevent the oxidation of liquid hydrocarbons and of oxygenated compounds, such as sulfolane or tetraethylene glycol, used as extraction solvents in the petroleum industry.

  多种受阻酚类化合物可作为抗氧化稳定剂，有效防止液态碳氢化合物和含氧化合物（如石油工业中用作萃取溶剂的磺烷或四甘醇）的氧化。
• POLYOXYMETHYLENE COMPOSITION
  申请人：POLYPLASTICS CO. LTD.

  公开号：EP0884362A1

  公开（公告）日：1998-12-16

  A polyoxymethylene composition is provided, which is reduced in malfunctions caused by the formic acid formed from the composition, such as staining caused by bleeding from rubber or corrosion of a metallic magnetic substance. It comprises polyoxymethylene and (a) 0.01 to 3% by weight of a sterically hindered phenolic antioxidant, (b) 0.001 to 0.3% by weight of a polyamide, and (c) 0.001 to 0.5% by weight of magnexium oxide having a specific surface area of at least 10 m2/g, each percentage being based on the polyoxymethylene.

  本发明提供了一种聚甲醛组合物，它可减少由该组合物形成的甲酸引起的故障，如橡胶出血引起的染色或金属磁性物质的腐蚀。 它包括聚甲醛和（a）0.01-3%（按重量计）的立体受阻酚类抗氧化剂，（b）0.001-0.3%（按重量计）的聚酰胺，以及（c）0.001-0.5%（按重量计）的氧化镁，氧化镁的比表面积至少为 10 m2/g，各百分比均以聚甲醛为基础。