3,4-Diethylpentanoic acid

• 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: 3,4-Diethylpentanoic acid
• 英文别名: 3-ethyl-4-methylhexanoic acid
• 化学式: C₉H₁₈O₂
• 分子量: 158.241
• InChiKey: LJQBLHFQPBNMIM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  11
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.89
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  反式-2-戊烯酸 、 仲丁基锂 以 四氢呋喃 为溶剂， 以56%的产率得到3,4-Diethylpentanoic acid
  参考文献：
  名称：

  Conjugate addition of organolithium reagents to α,β-unsaturated carboxylic acids

  摘要：

  Conjugate addition of primary, secondary, tertiary alkyl and phenyl lithium reagents to 2-alkenoic acids affords good yields of branched saturated carboxylic acids. Substitution by methyl groups at the alpha-carbon strongly decreases reactivity, whereas deprotonation of the starting acid occurs almost exclusively with methyl substitution at the beta-carbon of the 2-alkenoic acid. (C) 1998 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4039(98)01306-9

文献信息

• COMPOSITION FOR HEAT CYCLE SYSTEM, AND HEAT CYCLE SYSTEM
  申请人：Asahi Glass Company, Limited

  公开号：EP3109302A1

  公开（公告）日：2016-12-28

  To provide a composition for a heat cycle system having favorable lubricating properties and comprising a working fluid for heat cycle which has a low global warming potential and which can replace R410A, and a heat cycle system employing the composition. A composition for a heat cycle system, which comprises a working fluid for heat cycle containing an unsaturated fluorinated hydrocarbon compound having a specific structure, and a refrigerant oil having a breakdown voltage of at least 25 kV, a hydroxy value of at most 0.1 mgKOH/g, and an aniline point of at least -100°C and at most 0°C, and a heat cycle system employing the composition for a heat cycle system.

  提供一种用于热力循环系统的组合物，该组合物具有良好的润滑性能，包含一种热力循环用工作流体，该工作流体具有较低的全球升温潜能值，可替代 R410A，并提供一种采用该组合物的热力循环系统。 一种用于热力循环系统的组合物，它包括一种热力循环用工作流体，其中含有一种具有特定结构的不饱和含氟碳氢化合物，以及一种冷冻油，其击穿电压至少为 25 kV，羟值至多为 0.1 mgKOH/g，苯胺点至少为 -100°C 且至多为 0°C。
• COMPOSITION FOR HEAT CYCLE SYSTEM AND HEAT CYCLE SYSTEM
  申请人：Asahi Glass Company, Limited

  公开号：EP3153561A1

  公开（公告）日：2017-04-12

  To provide a composition for a heat cycle system, which comprises a working fluid for heat cycle which has a low global warming potential and high stability, and which can replace R410A, and a heat cycle system employing the composition. A composition for a heat cycle system, which comprises a working fluid for heat cycle containing 1,2-difluoroethylene, and a stabilizer for preventing deterioration of the working fluid for heat cycle, such as an oxidation resistance-improving agent, a heat resistance-improving agent or a metal deactivator, and a heat cycle system employing the composition for a heat cycle system.

  提供一种用于热力循环系统的组合物，该组合物包含一种全球升温潜能值低、稳定性高、可替代 R410A 的热力循环用工作流体，以及一种采用该组合物的热力循环系统。 一种用于热力循环系统的组合物，它包括含有 1,2-二氟乙烯的热力循环用工作流体和用于防止热力循环用工作流体变质的稳定剂（如抗氧化性改进剂、抗热性改进剂或金属失活剂），以及一种采用该组合物的热力循环系统。
• COMPOSITION FOR USE IN HEAT CYCLE SYSTEM, AND HEAT CYCLE SYSTEM
  申请人：Asahi Glass Company, Limited

  公开号：EP3287503A1

  公开（公告）日：2018-02-28

  A composition for a heat cycle system contains a working medium for heat cycle containing 1-chloro-2,3,3,3-tetrafluoropropene and a refrigerant oil.

  一种用于热力循环系统的组合物包含一种热力循环工作介质，其中含有 1-氯-2,3,3,3-四氟丙烯和一种冷冻机油。
• REFRIGERATION CYCLE DEVICE
  申请人：DAIKIN INDUSTRIES, LTD.

  公开号：EP3730569A1

  公开（公告）日：2020-10-28

  There is provided a refrigeration cycle apparatus in which good lubricity can be achieved when a refrigeration cycle is performed using a refrigerant having a sufficiently low GWP. The refrigeration cycle apparatus contains a refrigerating oil and a refrigerant composition containing a refrigerant containing trans-1,2-difluoroethylene (HFO-1132(E)), trifluoroethylene (HFO-1123), and 2,3,3,3-tetrafluoro-1-propene (R1234yf).

  本发明提供了一种制冷循环装置，当使用具有足够低全球升温潜能值的制冷剂进行制冷循环时，该装置可实现良好的润滑性。该制冷循环装置包含制冷油和制冷剂组合物，其中制冷剂组合物包含反式-1,2-二氟乙烯（HFO-1132(E)）、三氟乙烯（HFO-1123）和 2,3,3,3-四氟-1-丙烯（R1234yf）。
• REFRIGERATION CYCLE DEVICE FOR VEHICLE
  申请人：DAIKIN INDUSTRIES, LTD.

  公开号：EP3825383A1

  公开（公告）日：2021-05-26

  No studies have been made regarding what kinds of refrigerants should be used in a refrigeration cycle device for a vehicle. An air conditioner (1) for a vehicle includes a refrigerant circuit (10) and a refrigerant that is sealed in the refrigerant circuit (10). The refrigerant circuit (10) includes a compressor (80), a first heat exchanger (85), which serves as a heat dissipater in a dehumidifying heating mode, an outside-air heat exchanger (82), a cooling control valve (87), and a second heat exchanger (86), which serves as an evaporator in the dehumidifying heating mode. The refrigerant is a refrigerant having a low GWP

  关于车辆的制冷循环装置应使用何种制冷剂，尚未进行研究。汽车空调（1）包括制冷剂回路（10）和密封在制冷剂回路（10）中的制冷剂。制冷剂回路（10）包括压缩机（80）、在除湿加热模式下作为散热器的第一热交换器（85）、外部空气热交换器（82）、冷却控制阀（87）以及在除湿加热模式下作为蒸发器的第二热交换器（86）。制冷剂是具有低全球升温潜能值的制冷剂