2,4-Dimethylheptansaeure | 2624-25-1

• 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: 2,4-Dimethylheptansaeure
• 英文别名: 2,4-Dimethylheptanoic acid
• CAS: 2624-25-1
• 化学式: C₉H₁₈O₂
• 分子量: 158.241
• InChiKey: PLTFCXPZUBKUMW-UHFFFAOYSA-N

物化性质

• 沸点：
  82-83 °C(Press: 0.6 Torr)
• 密度：
  0.917±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 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

文献信息

• Process for conducting aldol condensation reactions in ionic liquid media
  申请人：——

  公开号：US20030050512A1

  公开（公告）日：2003-03-13

  The present invention is related to a method for forming aldol condensation products, comprising reacting at least one aldehyde starting material in the presence of an ionic liquid medium and a basic catalyst at a temperature range of from about −20° C. to about 300° C. and at a pressure range of from about 1 atm to about 1000 atm for a sufficient time to form the aldol condensation products. The invention is also directed to a method for forming aldol condensation products, comprising reacting at least one aldehyde starting material in the presence of a basic ionic liquid medium at the same parameters specified above. The advantage of the instant invention is the increased selectivity and productivity of the resulting aldol condensation products formed in ionic liquid media, along with the ability to recycle the ionic liquid for use in producing additional aldol condensation products.

  本发明涉及一种形成醛缩合产物的方法，包括在离子液体介质和碱性催化剂的存在下，在温度范围从约-20°C到约300°C和压力范围从约1大气压到约1000大气压的条件下，反应至足够时间形成醛缩合产物，所述方法还包括在相同的参数下，在碱性离子液体介质中反应至少一种醛起始物质以形成醛缩合产物。本发明的优点在于在离子液体介质中形成的醛缩合产物具有提高的选择性和生产率，同时具有回收离子液体以用于生产额外醛缩合产物的能力。
• Use of synthetic lubricating oils in refrigerators
  申请人：NIPPON OIL CO. LTD.

  公开号：EP0452816A2

  公开（公告）日：1991-10-23

  A synthetic lubricating oil comprising as a base oil at least one kind of a carbonic acid ester selected from the group consisting of: [I] a carbonic acid ester represented by the general formula (1) wherein R¹ and R² are each an alkyl or dihydric alcohol residue, R³ is an alkylene, and a is 0 - 30, [II] a carbonic acid ester represented by the general formula (2) wherein X¹ is -H or R⁴-R⁶ are each an alkyl, cycloalkyl or neopentyl type polyol residue, R⁷ is an alkyl, b is 1 or 2, c is 0 or 1 (b + c = 2), d is 0 - 30, and e is 1 - 3, and [III] a carbonic acid ester of which alcohol moieties are (A) a monohydric alcohol, (B) a dihydric alcohol, and (C) a neopentyl type polyol or dimer or trimer thereof.

  一种合成润滑油，其基础油包含至少一种碳酸酯，该碳酸酯选自以下组别： 1： [I] 由通式（1）表示的碳酸酯 其中 R¹ 和 R² 分别为烷基或二元醇残基，R³ 为亚烷基，a 为 0 - 30、 [II] 由通式（2）代表的碳酸酯 其中 X¹ 是-H 或 R⁴-R⁶各自是烷基、环烷基或新戊基型多元醇残基，R⁷是烷基，b 是 1 或 2，c 是 0 或 1（b + c = 2），d 是 0 - 30，e 是 1 - 3，以及 [III] 碳酸酯，其中醇分子为 (A) 一元醇，(B) 二元醇，和 (C) 新戊基多元醇或其二聚体或三聚体。
• REFRIGERATING MACHINE OIL AND WORKING FLUID COMPOSITION FOR REFRIGERATING MACHINES
  申请人：JX Nippon Oil & Energy Corporation

  公开号：EP2610329A1

  公开（公告）日：2013-07-03

  The refrigerating machine oil of the invention includes an ester of a polyhydric alcohol and a fatty acid, wherein the molar ratio of C4-C6 fatty acid and C7-C9 branched fatty acid in the fatty acid is between 15:85 and 90:10, the C4-C6 fatty acid includes 2-methylpropanoic acid, and the ratio of the total C4-C6 fatty acid and C7-C9 branched fatty acid in the total fatty acids composing the ester is at least 20 mol%. The working fluid composition for a refrigerating machine according to the invention comprises the refrigerating machine oil, a difluoromethane refrigerant and/or an unsaturated fluorinated hydrocarbon refrigerant.

  本发明的冷冻机油包括多元醇和脂肪酸的酯，其中脂肪酸中C4-C6脂肪酸和C7-C9支链脂肪酸的摩尔比在15:85和90:10之间，C4-C6脂肪酸包括2-甲基丙酸，组成酯的总脂肪酸中C4-C6脂肪酸和C7-C9支链脂肪酸的比例至少为20 mol%。根据本发明，用于制冷机的工作液组合物包括制冷机油、二氟甲烷制冷剂和/或不饱和氟化碳氢化合物制冷剂。
• REFRIGERATOR OIL COMPOSITION, METHOD FOR PRODUCING SAME, AND WORKING FLUID COMPOSITION FOR REFRIGERATORS
  申请人：JX Nippon Oil & Energy Corporation

  公开号：EP2818537A1

  公开（公告）日：2014-12-31

  A refrigerating machine oil composition comprising at least one ester additive selected from tetraesters of pentaerythritol and one selected from fatty acids having 5 to 18 carbon atoms and hexaesters of dipentaerythritol and one selected from fatty acids having 5 to 18 carbon atoms, and a base oil that is an ester other than the ester additive, in which the content of the ester additive is 2 to 20 mass% based on the total amount of the refrigerating machine oil composition, and the kinematic viscosity of the refrigerating machine oil composition at 40°C is 3 to 500 mm2/s.

  一种冷冻机油组合物，包含至少一种酯类添加剂，选自季戊四醇四酯和一种选自具有 5 至 18 个碳原子的脂肪酸，以及季戊四醇六酯和一种选自具有 5 至 18 个碳原子的脂肪酸、以及除酯类添加剂之外的酯类基础油，其中酯类添加剂的含量为冷冻机油组合物总量的 2 至 20%，且冷冻机油组合物在 40°C 时的运动粘度为 3 至 500 mm2/s。
• ALICYCLIC EPOXY COMPOUND AND METHOD FOR PRODUCING SAME
  申请人：Daicel Corporation

  公开号：EP2891652A1

  公开（公告）日：2015-07-08

  Provided is a novel epoxide that is highly soluble in organic solvents, is lowly volatile, contains a highly reactive epoxy group, and still resists polymerization by itself. The cycloaliphatic epoxide according to the present invention is a cycloaliphatic epoxide represented by Formula (1) : where R1 to R11 are each independently selected from hydrogen and C1-C4 straight or branched chain alkyl; and Ra represents C8-C23 branched chain alkyl. Ra is preferably C8-C17 branched chain alkyl.

  本发明提供了一种新型环氧化物，该环氧化物在有机溶剂中的溶解度高，挥发性低，含有高活性环氧基团，并且自身仍能抗聚合。 本发明的环脂族环氧化物是由式（1）表示的环脂族环氧化物： 其中 R1 至 R11 各自独立地选自氢和 C1-C4 直链或支链烷基；Ra 代表 C8-C23 支链烷基。Ra 最好是 C8-C17 支链烷基。