2,3,4,4-Tetramethylvaleriansaeure | 38495-02-2

• 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: 2,3,4,4-Tetramethylvaleriansaeure
• 英文别名: 2,2,3,4-Tetramethylvaleriansaeure；2,2,3,4-Tetramethylpentanoic acid
• CAS: 38495-02-2
• 化学式: C₉H₁₈O₂
• 分子量: 158.241
• InChiKey: NPMHELYJLOUPIZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  11
• 可旋转键数：
  3
• 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：

  2,3,4-三甲基-2-戊烯 、 一氧化碳 在 propionic acid ; compound with boron fluoride 作用下， 生成 2,3,4,4-Tetramethylvaleriansaeure
  参考文献：
  名称：

  Carbonylation of aliphatic and cyclic alcohols by carbon monoxide in the presence of complexes of BF3 with acetic, propionic, or monochloroacetic acid

  摘要：

  DOI：

  10.1007/bf01108192

文献信息

• POLYESTER POLYOL RESINS COMPOSITIONS
  申请人：Momentive Specialty Chemicals Inc.

  公开号：US20140287252A1

  公开（公告）日：2014-09-25

  A composition of polyester polyol resins comprising a mixture of α,α-branched alkane carboxylic glycidyl esters derived from butene oligomers characterized in that the sum of the concentration of the blocked and of the highly branched isomers is maximum 55%, preferably below 40%, and most preferably below 30% weight on total composition.

  一种聚酯聚醇树脂组成物，包括由丁烯寡聚物衍生的α，α-支链烷基羧酸甘氧基酯混合物，其特征在于阻断和高度支化异构体的浓度之和最大为55％，最好低于40％，最好低于总组成物重量的30％。
• GLYCIDYL ESTERS OF ALPHA, ALPHA BRANCHED NEONONANOIC ACIDS, SYNTHESIS AND USES
  申请人：Le Fevere de Ten Hove Cédric

  公开号：US20140316030A1

  公开（公告）日：2014-10-23

  The invention relates to a manufacturing process for the preparation of α,α-branched alkane carboxylic acids providing glycidyl esters with an improved softness or hardness of the coatings derived thereof. In which the mixture of neononanoic acid providing a high hardness is a mixture where the sum of the concentration of the blocked and of the highly branched isomers is at least 50%, preferably above 60% and most preferably above 75%. In which a mixture of neononanoic acids providing soft polymers is a mixture where the concentration of blocked and highly branched isomers is maximum 55%, preferably below 40% and most preferably below 30%.

  本发明涉及一种制备α，α-支链烷基羧酸的制造工艺，从而提供具有改善软硬度的其衍生物涂层的环氧树脂酯。其中，提供高硬度的正壬酸混合物是一种混合物，其中被阻断和高度支链异构体的浓度之和至少为50％，最好在60％以上，最好在75％以上。提供软聚合物的正壬酸混合物是一种混合物，其中被阻断和高度支链异构体的浓度最大为55％，最好低于40％，最好低于30％。
• ESTER COMPOUNDS AND LUBRICATING OIL COMPOSITION
  申请人：Kao Corporation

  公开号：EP0903335A1

  公开（公告）日：1999-03-24

  Ester compounds possessing heat stability in the presence of a metal and prepared from di- to nona- hydric hindered alcohols having 5 to 15 carbon atoms and saturated aliphatic monocarboxylic acids having 3 to 20 carbon atoms or derivatives thereof, characterized in that the proportion of the branched carboxylic acids or derivatives thereof in all the carboxylic acids or derivatives thereof is at least 50 % by mole and the ester compounds have a hydroxyl value of at most 30 mg KOH/g and an acid value after the sealed tube test of at most 10 mg KOH/g: and a lubricating oil composition characterized by containing at least 20 % by weight of the ester compounds. Thus the invention provides ester compounds possessing excellent heat stability in the presence of a metal, and a lubricating oil composition and a hydraulic fluid composition for refrigerators, each composed mainly of the ester compounds.

  在金属存在下具有热稳定性的酯类化合物，由具有 5 至 15 个碳原子的二水至非 水受阻醇和具有 3 至 20 个碳原子的饱和脂肪族一元羧酸或其衍生物制备、其特征在于支链羧酸或其衍生物在所有羧酸或其衍生物中所占比例至少为 50%（按摩尔计），且酯类化合物的羟值不超过 30 毫克 KOH/克，密封管测试后的酸值不超过 10 毫克 KOH/克：以及一种润滑油组合物，其特征是含有至少 20% （按重量计）的酯类化合物。因此，本发明提供了在金属存在下具有优异热稳定性的酯类化合物，以及主要由这些酯类化合物组成的用于冰箱的润滑油组合物和液压油组合物。
• BIODEBRADABLE LUBRICATING OIL COMPOSITION
  申请人：IDEMITSU KOSAN CO., LTD.

  公开号：EP1707617A1

  公开（公告）日：2006-10-04

  [PROBLEMS] To provide a biodegradable lubricating oil composition which has excellent biodegradability, a high viscosity index, a low pour point, a high flash point, being satisfactory with lubricity, oxidative stability, property of preventing the corrosion of iron and non-ferrous metals, and suitability for use with sealing materials. [MEANS FOR SOLVING THE PROBLEMS] A biodegradable lubricating oil composition comprising (A) a synthetic ester base oil comprising at least 50 mass% hindered ester of an aliphatic monocarboxylic acid with an aliphatic hindered polyol which has one or more quaternary carbon atoms per molecule and in which at least one of the quaternary carbon atoms has one to four methylol groups bonded thereto and (B) ingredients which are (a) 0.1 to 5.0 mass% phenolic antioxidant, (b) 0.01 to 2.0 mass% calcium sulfonate having a low base number, and (c) 0.01 to 1.0 mass% triazole compound, and has the degree of biodegradation of 60 % or higher when examined by the test for the degree of microbial degradation of chemical substances according to the OECD Test Guideline 301C method.

  [问题] 提供一种可生物降解的润滑油组合物，它具有极佳的生物降解性、高粘度指数、低倾 点、高闪点、令人满意的润滑性、氧化稳定性、防止铁和非铁金属腐蚀的特性以及与密封 材料一起使用的适宜性。 [解决问题的方法] 一种可生物降解的润滑油组合物，包括 (A) 合成酯类基础油，该基础油由至少 50%的脂肪族一元羧酸与脂肪族受阻多元醇的受阻酯组成，该受阻酯每个分子具有一个或多个季碳原子，其中至少一个季碳原子上键合有一至四个甲醇基团；以及 (B) 成分，其中 (a) 0.1至5.0质量％的酚类抗氧化剂，(b)0.01至2.0质量％的低碱基磺酸钙，以及(c)0.01至1.0质量％的三唑化合物，并且在根据经合组织试验准则301C方法进行的化学物质微生物降解程度试验中，生物降解程度达到或超过60％。
• BIODEGRADABLE LUBRICANT COMPOSITION
  申请人：Idemitsu Kosan Co., Ltd.

  公开号：EP2428552A1

  公开（公告）日：2012-03-14

  A biodegradable lubricating oil composition includes (A) an ester being obtained by reacting a saturated aliphatic carboxylic acid, a straight-chain aliphatic dicarboxylic acid and a polyhydric alcohol together, the ester having a kinematic viscosity in a range from 400 mm2/s to 1000 mm2/s at 40 degrees C and an acid value of 0.5 mgKOH/g or less; (B) an ester being obtained by reacting a straight-chain saturated aliphatic carboxylic acid with a polyhydric alcohol, the ester having an acid value of 0.5 mgKOH/g or less; and (C) a phosphate amine salt being obtained by reacting an acidic phosphate with an alkylamine.

  一种可生物降解的润滑油组合物包括：(A) 由饱和脂肪族羧酸、直链脂肪族二羧酸和多元醇一起反应得到的酯，该酯在 40 摄氏度时的运动粘度范围为 400 mm2/s 至 1000 mm2/s，酸值为 0.5 mgKOH/g 或更低；(B) 由直链饱和脂肪族羧酸与多元醇反应得到的酯，该酯的酸值为 0.5 mgKOH/g 或更低；以及(C) 由酸性磷酸盐与烷基胺反应得到的磷酸盐胺盐。