丁基丙基丙二酸 | 78466-62-3

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 中文名称: 丁基丙基丙二酸
• 英文名称: 2-propyl-2-butylmalonic acid
• 英文别名: Propylbutylmalonic acid；2-butyl-2-propylpropanedioic acid
• CAS: 78466-62-3
• 化学式: C₁₀H₁₈O₄
• 分子量: 202.251
• InChiKey: VLPSDJAKORVJMJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  14
• 可旋转键数：
  7
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.8
• 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：

  丁基丙基丙二酸 生成 3-丙基己酸
  参考文献：
  名称：

  Sommaire, Bulletin de la Societe Chimique de France, 1923, vol. <4> 33, p. 195

  摘要：

  DOI：
• 作为产物：
  描述：

  diethyl 2-propyl-2-butylmalonate 在 水 、 potassium hydroxide 作用下， 以 乙醇 为溶剂， 生成 丁基丙基丙二酸
  参考文献：
  名称：

  一种2-丙基己酸的制备方法

  摘要：

  本发明涉及化学结构式Ⅱ其特征在于丙二酸二酯，在溶剂中，在碱和PTC共同作用下，先丁基化，再丙基化制得式Ⅲ所示的2‑丙基‑2‑丁基丙二酸二酯；2‑丙基‑2‑丁基丙二酸二酯经水解脱羧制得Ⅱ所示的2‑丙基己酸；其制备反应如下：#imgabs0#R1和R2分别选自：苄基、C1～C5直链烷基或C3～C5支链烷基；R1和R2相同或不同；PTC选自：四丁基氯化铵、四丁基溴化铵、四丁基碘化铵、四丙基氯化铵、四丙基溴化铵或四丙基碘化铵。2‑丙基己酸用于用于丙戊酸钠生产新工艺中杂质的定性和定量分析。

  公开号：

  CN116730832A

文献信息

• Improved synthesis and low-temperature performance of a series of saturated α-branched fatty acids
  作者：Yang Jiang、Wenjing Hu、Jian Xu、Jiusheng Li

  DOI：10.1007/s11696-017-0230-8

  日期：2017.12

  Five saturated α-branched fatty acids, also known as Guerbet acids, including α-propylhexyl acid (G 1 ), α-butylhexyl acid (G 2 ), α-propyloctyl acid (G 3 ), α-butyloctyl acid (G 4 ), and α-hexyloctyl acid (G 5 ), were synthesized in high yields by four-step reaction. Colorless, almost odorless, and oily products were obtained with high purity, whose structures were confirmed by GC, 1H/13C NMR, and

  五种饱和的α-支链脂肪酸，也称为Guerbet酸，包括α-丙基己酸（G 1），α-丁基己酸（G 2），α-丙基辛酸（G 3），α-丁基辛酸（G 4）通过四步反应以高收率合成了α-己基辛酸（G 5）。获得了无色，几乎无味和油状的高纯度产品，其结构已通过GC，1 H / 13 C NMR和ESI-MS表征得到了证实。G 1，G 3和G 4的倾点低于-60°C，而 G 2和G 5由于具有分子对称性，因此显示出较高的倾点（分别为-42°C和6°C）。考虑到低温性能，G 1，G 3，G 4甚至G 2在润滑剂和油田中具有巨大的潜在应用。
• 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。
• 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。
• HYDROCARBYL SOLUBLE QUATERNARY AMMONIUM CARBOXYLATES AND FUEL COMPOSITIONS CONTAINING THEM
  申请人：Afton Chemical Corporation

  公开号：EP2960319A2

  公开（公告）日：2015-12-30

  A fuel additive composition, fuel composition, method of improving the injector performance of a fuel injected engine, method for preventing or cleaning up deposits in an engine or fuel system, method of reducing wear in a fuel system of an engine, and method of improving the demulsibility of a fuel composition. The fuel composition includes from about 5 to about 300 ppm by weight based on a total weight of the fuel composition of a hydrocarbyl soluble quaternary ammonium carboxylate derived from a quaternary ammonium carbonate and an organic acid.

  一种燃料添加剂组合物、燃料组合物、改善喷油发动机喷油器性能的方法、防止或清理发动机或燃料系统中沉积物的方法、减少发动机燃料系统磨损的方法以及改善燃料组合物反乳化性的方法。以燃料组合物的总重量为基准，燃料组合物包括约 5 至约 300 ppm（按重量计）的烃基可溶性季铵羧酸盐，该季铵羧酸盐由季铵碳酸盐和有机酸衍生而来。
• Use of quaternary ammonium salts in gasoline fuel to improve performance
  申请人：Afton Chemical Corporation

  公开号：EP2987845A1

  公开（公告）日：2016-02-24

  Use of a fuel composition for reducing friction or wear in a fuel delivery system of an engine or corrosion in fuel delivers system of an engine or fuel storage terminal. The fuel composition includes gasoline and from about 10 to about 500 ppm by weight based on a total weight of the fuel composition of an alkoxylated quaternary ammonium salt derived from an epoxide, a tertiary amine, and optional protonating agent.

  一种燃料组合物用于减少发动机燃料输送系统的摩擦或磨损，或减少发动机燃料输送系统或燃料储存终端的腐蚀。该燃料组合物包括汽油，以及按燃料组合物总重量计算的约 10 至约 500 ppm 的环氧化物衍生的烷氧基化季铵盐、叔胺和任选质子化剂。