7-Ethyloctadecanedioic acid | 76980-51-3

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: 7-Ethyloctadecanedioic acid
• CAS: 76980-51-3
• 化学式: C₂₀H₃₈O₄
• 分子量: 342.5
• InChiKey: WPDNUCQHNPMNEO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.2
• 重原子数：
  24
• 可旋转键数：
  18
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.9
• 拓扑面积：
  74.6
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  7-Ethyloctadecanedioic acid 、 甲醇 生成 dimethyl 7-ethyloctadecanedioate
  参考文献：
  名称：

  KATAFUCHI, TADASHI;MITAZAKI, HIROO;SHIDO, SEIICHI;TOMARI, YASUNORI;ONODER+

  摘要：

  DOI：

文献信息

• METHOD FOR PREPARING QUATERNARY PHOSPHONIUM SALTS
  申请人：Microvast Power Systems Co.,Ltd.

  公开号：US20150166587A1

  公开（公告）日：2015-06-18

  A two-step pathway for preparing high pure quaternary phosphonium salts is disclosed. In the first step, hydrogen phosphide (PH 3 ) or a higher phophine reacts with a protonic compound to produce a phosphonium salt, which then reacts with a carbonic acid diester to produce a quaternary phosphonium salt in the second step. On one hand, hydrogen phosphide (PH 3 ) and higher phophines, including primary phosphines, secondary phosphines, and tertiary phosphines, after neutralization with protonic compound, become sufficiently reactive and can be alkylated by carbonic acid diester to form quaternary phosphonium cations. On the other hand, as an anion-exchange procedure is completely avoided, the process not only gives quaternary phosphonium salts of high purity, but also gives people freedom to design the cation and the anion of a quaternary phosphonium salt synchronously by choosing a preferred phosphine and a protonic compound that can supply a desired anion.

  揭示了一种制备高纯度四元磷铵盐的两步途径。在第一步中，氢磷化物（PH3）或更高的磷化物与质子化合物发生反应，产生磷铵盐，然后在第二步中与碳酸二酯发生反应，产生四元磷铵盐。一方面，氢磷化物（PH3）和更高的磷化物，包括一次磷化物、二次磷化物和三次磷化物，在与质子化合物中和后变得足够活性，可以被碳酸二酯烷基化形成四元磷铵阳离子。另一方面，由于完全避免了阴离子交换程序，该过程不仅提供高纯度的四元磷铵盐，还使人们可以通过选择理想的磷化物和可以提供所需阴离子的质子化合物，同时设计四元磷铵盐的阳离子和阴离子。
• Polyester resin composition for forming an impact resistant article
  申请人：UNITIKA LTD.

  公开号：EP0194808A1

  公开（公告）日：1986-09-17

  A polyester resin composition for forming an impact resistant article is described, comprising from 40 to 97 parts by weight of polyethylene terephthalate and from 3 to 60 parts by weight of at least one polyester selected from (1) an ethylene terephthalate-based polyester comprising from 5 to 25 wt% of at least one dibasic acid represented by formula (I) wherein A and B each represents a hydrogen atom, an alkyl group, or a phenyl group, and n is an integer of not less than 10, and ester bond-forming derivatives, (2) an ethylene terephthalate-based polyester comprising 3 to 25 wt% of at least one polyalkylene glycol having a molecular weight of from about 500 to 20,000, and (3) polyarylate, which composition further contains, per 100 parts by weight of the polyester, (a) from 0.05 to 10 parts by weight of at least one of an inorganic crystal nucleating agent having an average particle diameter of not more than 50 µm, an organic compound containing a metal salt of a carboxyl group, and a polymer compound containing a metal salt of a carboxyl group, (b) from 3 to 30 parts by weight of modified polyolefin or modified olefin-based elastomer prepared by adding from 0.001 to 10 mot% of an alicyclic carboxylic acid containing a cis-double bond in the ring or its functional derivative to a polyolefin or olefin-based elastomer, (c) from 1 to 30 parts by weight of a copolymer comprising from 80 to 99 wt% of a -olefin, from 1 to 20 wt% of glycidyl methacrylate or glycidyl acrylate, and up to 19 wt% of vinyl acetate, (d) from 0.3 to 10 parts by weight of an ester-based plasticizer, and (e) up to 150 parts by weight of a fibrous reinforcing material.

  描述了一种用于形成抗冲击制品的聚酯树脂组合物，它包括 40 至 97 份（按重量计）的聚对苯二甲酸乙二醇酯和 3 至 60 份（按重量计）的至少一种聚酯，这些聚酯选自以下材料 (1) 以对苯二甲酸乙二醇酯为基料的聚酯，其中含有 5 至 25 重量份的至少一种二元酸，由式 (I) 表示 其中 A 和 B 分别代表氢原子、烷基或苯基，n 为不小于 10 的整数，以及酯键形成衍生物、 (2) 以对苯二甲酸乙二醇酯为基料的聚酯，包含 3 至 25 wt%的至少一种分子量在 500 至 20000 之间的聚亚烷基二醇，以及 (3) 聚芳酸酯，该组合物每 100 重量份的聚酯还含有 (a) 0.05 至 10 重量份的至少一种平均颗粒直径不超过 50 微米的无机晶核剂、含有羧基金属盐的有机化合物和含有羧基金属盐的聚合物化合物， (b) 3 至 30 重量份的改性聚烯烃或改性烯烃基弹性体，其制备方法是在聚酯中加入 0.001 至 10 个摩尔％的环状羧酸或其官能衍生物到聚烯烃或烯烃基弹性体中， (c) 1 至 30 份（按重量计）共聚物，其中包括 80 至 99 wt％的烯烃、1 至 20 wt％的甲基丙烯酸缩水甘油酯或丙烯酸缩水甘油酯和最多 19 wt％的醋酸乙烯酯， (d) 0.3 至 10 重量份的酯基增塑剂，以及 (e) 最多 150 重量份的纤维增强材料。
• Polyamides
  申请人：Union Camp Corporation

  公开号：EP0182957A1

  公开（公告）日：1986-06-04

  Polyamide hot-melt adhesives are prepared from condensation of a mixture of polymeric fatty acids and 1,18-octadecane-dicarboxylic acid or 1,16-hexadecane- dicarboxylic acid and a substantially equivalent proportion of a polyamine.

  聚酰胺热熔粘合剂是由聚合脂肪酸和 1,18-十八烷二羧酸或 1,16-十六烷二羧酸的混合物以及基本上等比例的聚胺缩合而成。
• Process for producing quaternary salts
  申请人：MITSUBISHI PETROCHEMICAL CO., LTD.

  公开号：EP0291074A2

  公开（公告）日：1988-11-17

  A process for producing quaternary salts of high purity is disclosed, comprising reacting a tertiary amine or phosphine with a carbonic acid diester to form a correspond­ing quaternary carbonate and further mixing it with an acid to perform decarboxylation. The quaternary salts thus ob­tained are useful compounds which can be used in wide fields as various catalysts, electrolytes, additives, medicaments, etc.

  本发明公开了一种生产高纯度季盐的工艺，包括将叔胺或膦与碳酸二酯反应生成相应的季碳酸盐，并进一步与酸混合进行脱羧反应。由此获得的季盐是有用的化合物，可广泛用作各种催化剂、电解质、添加剂、药物等。
• Polyester resin laminated plate and process for production thereof
  申请人：UNITIKA LTD.

  公开号：EP0591801A1

  公开（公告）日：1994-04-13

  A polyester resin laminated plate which has a smooth surface, has less anisotropy of mechanical properties, is inexpensive, has no restriction in size, thickness, etc., and has a good cutting workability is produced by a process including the steps of melt-extruding a composition including 100 parts by weight of a thermoplastic polyester resin compounded with from 5 to 40 parts by weight of a fibrous reinforcing material and from 5 to 50 parts by weight of a granular inorganic compound to form sheets, forcibly cooling the sheets to a temperature lower than the glass transition point of the polyester resin to provide plural sheets having a surface crystallinity of less than 10%, laminating these plural sheets, and hot-pressing them at a pressure of from 15 to 150 kg/cm² and at a temperature of from 80 to 260°C, with the rate of temperature increase of 3°C/minute or more to reach the temperature.

  一种表面光滑、机械性能各向异性较小、价格低廉、尺寸和厚度等不受限制并具有良好切割加工性的聚酯树脂层压板是通过以下步骤生产出来的：熔融挤出一种组合物，该组合物包括按重量计 100 份的热塑性聚酯树脂和按重量计 5 至 40 份的掺合料、一种表面光滑、机械性能各向异性较小、价格低廉、尺寸和厚度等不受限制且切割加工性能良好的聚酯树脂层压板的生产工艺包括以下步骤 熔融挤出一种组合物，该组合物包括按重量计 100 份的热塑性聚酯树脂、按重量计 5 至 40 份的纤维状增强材料和按重量计 5 至 50 份的颗粒状无机化合物，以形成板材、将板材强制冷却至低于聚酯树脂玻璃化转变点的温度，以提供表面结晶度小于 10%的复数板材，将这些复数板材层压，并在压力为 15 至 150 千克/平方厘米、温度为 80 至 260 摄氏度、升温速度为 3 摄氏度/分钟或更高的条件下进行热压，以达到上述温度。