1-二十六碳烯酸 | 26444-07-5

• 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: 1-二十六碳烯酸
• 英文名称: hexacos-2t-enoic acid
• 英文别名: Hexacos-2t-ensaeure；trans-2-Hexacosenoic acid；(E)-hexacos-2-enoic acid
• CAS: 26444-07-5
• 化学式: C₂₆H₅₀O₂
• 分子量: 394.682
• InChiKey: HMFPLNNQWZGXAH-OCOZRVBESA-N

物化性质

• 熔点：
  68.5°C (estimate)
• 沸点：
  478.25°C (rough estimate)
• 密度：
  0.8994 (rough estimate)

计算性质

• 辛醇/水分配系数(LogP)：
  12.4
• 重原子数：
  28
• 可旋转键数：
  23
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  重氮甲烷 、 1-二十六碳烯酸 生成 hexacos-2t-enoic acid methyl ester
  参考文献：
  名称：

  Branched-chain fatty acids. XXVI. Synthesis of optically active acids of use in the study of the structure of C_27- phthienoic acid. Partial thermal racemization of (-)-5-methyl-2-tridecenoic acid

  摘要：

  DOI：

  10.1021/jo50013a013
• 作为产物：
  描述：

  lignoceroyl chloride 在 哌啶 、 吡啶 、 喹啉 、 Pd-BaSO₄ 、 xylene 作用下， 生成 1-二十六碳烯酸
  参考文献：
  名称：

  Branched-chain fatty acids. XXVI. Synthesis of optically active acids of use in the study of the structure of C_27- phthienoic acid. Partial thermal racemization of (-)-5-methyl-2-tridecenoic acid

  摘要：

  DOI：

  10.1021/jo50013a013

文献信息

• Process for producing hydroxylated fatty acids and delta-lactones
  申请人：——

  公开号：US20040197882A1

  公开（公告）日：2004-10-07

  The process which comprises causing cells or a culture of a microorganism having the activity to introduce hydroxy into the [n-5]-position (n is an even number of 10 or more) and hydrogen into the [n-6]-position of a straight-chain fatty acid having n carbon atoms wherein at least the [n-6]-position is a double bond to make the [n-6]-position a single bond or a treated matter thereof to act on a straight-chain fatty acid having n carbon atoms wherein at least the [n-6]-position is a double bond or a composition containing the fatty acid to form an [n-5]-hydroxy fatty acid wherein the [n-6]-position is a single bond, causing cells or a culture of a microorganism having the activity to &bgr;-oxidize an [n-5]-hydroxy fatty acid wherein the [n-6]-position is a single bond or a treated matter thereof to act on the formed [n-5]-hydroxy fatty acid, and recovering the formed &dgr;-lactones.

  该过程包括使用具有将羟基引入n-5位置（n为10或更多的偶数）和氢引入n-6位置的微生物细胞或培养基的活性，作用于直链脂肪酸（其中至少n-6位置为双键），使n-6位置成为单键或处理后的物质，作用于直链脂肪酸（其中至少n-6位置为双键）或含有脂肪酸的组合物，以形成n-5羟基脂肪酸，其中n-6位置为单键，使用具有β-氧化活性的微生物细胞或培养基作用于n-5羟基脂肪酸（其中n-6位置为单键）或处理后的物质，以回收形成的δ-内酯。
• Traction drive fluid
  申请人：Nippon Mitsubishi Oil Corporation

  公开号：US20010010293A1

  公开（公告）日：2001-08-02

  A traction drive fluid comprising a naphthenic compound represented by the formula 1 wherein R 1 is an alkyl group, which may have a naphthene ring, having 1 to 8 carbon atoms, R 2 through R 4 are each independently hydrogen or an alkyl group, which may have a naphthene ring, having 1 to 8 carbon atoms, and A is a naphthenic hydrocarbon group, a saturated polycyclic hydrocarbon group, a naphthenic ester group, and a naphthenic carbonate group.

  一种牵引传动液，包括一种由以下式子1表示的萘烷化合物： 式子1 其中，R1是一个碳数为1到8的烷基团，可能有一个萘环；R2到R4各自独立地是氢原子或碳数为1到8的烷基团，可能有一个萘环；A是一个萘烷烃基团、一个饱和多环烃基团、一个萘烷酯基团或一个萘烷碳酸酯基团。
• GOLF BALL
  申请人：Tarao Toshiyuki

  公开号：US20130053182A1

  公开（公告）日：2013-02-28

  The present invention provides a golf ball comprising a spherical core and at least one cover layer covering the spherical core, wherein the cover is formed from a polyurethane composition containing a polyurethane elastomer as a resin component, the polyurethane composition satisfying properties of rebound resilience of 54% or more and a shear loss modulus G″ of 5.03×10 6 Pa or less when measured in a shear mode using a dynamic viscoelasticity measuring apparatus at the conditions of the temperature of 0° C., and the oscillation frequency of 10 Hz, and the spherical core has a hardness distribution that R 2 of a linear approximate curve determined by a least-squares method is 0.95 or more, when plotting JIS-C hardness measured at a center, a surface and at intervals of 2.5 mm from the center of the spherical core, versus distances from the center of the spherical core.

  本发明提供了一种高尔夫球，包括一个球形的核心和至少一个覆盖在球形核心上的覆盖层，其中覆盖层由聚氨酯弹性体作为树脂组分形成的聚氨酯组合物制成，该聚氨酯组合物在0℃的温度、10 Hz的振荡频率下使用动态粘弹性测量仪以剪切模式测量时，反弹弹性性能为54%或更高，剪切损失模量G″为5.03×106Pa或更低，并且球形核心具有硬度分布，当在球形核心的中心、表面和距离球形核心中心2.5毫米的间隔处测量JIS-C硬度，并将距离从球形核心中心绘制成最小二乘法确定的线性近似曲线的R2为0.95或更高。
• Resin composition containing a polyamide and a polyphenylene ether
  申请人：MITSUBISHI PETROCHEMICAL CO., LTD.

  公开号：EP0248526A1

  公开（公告）日：1987-12-09

  A blend is made of, by weight (a) 10-70 parts of a polyphenylene ether which may have various substituents on the phenyl nucleus, and has at least 50 recurring units, (b) 30-90 parts of a polyamide (a nylon) and optionally (c) 3-50% of a rubbery polymer which is elastic at room temperature (e.g. a copolymer of an aromatic vinyl compound and a conjugated diene); and as a stabilizer, a thioether compound (preferably of formula R⁰-S-CHR¹R², where the Rs are hydrocarbon or substituted hydrocarbon groups of 1-35 C atoms and R¹ and R² can be H; 28 specific compounds are shown. Optional further ingredients are 0.01-5 parts of sterically hindered phenol compound; and 0.01 to 30 parts of a compound containing a -C=C- or -C=C- bond and a polar group (e.g. carboxyl group), per 100 parts of (a), (b) and (c). The blending can be at 200-380°C, and the melt is extruded and pelletised. The resultant resin composition can be molded into products of large size, e.g. for automobile parts, and is highly resistant to solvents.

  混合物的重量百分比为：(a) 10-70 份聚苯醚（苯基核上可能有各种取代基，至少有 50 个重复单元）；(b) 30-90 份聚酰胺（尼龙）；(c) 3-50% 在室温下有弹性的橡胶聚合物（如芳香族乙烯基化合物和共轭二烯的共聚物）；以及作为稳定剂的硫醚化合物（最好为 R⁰-S-CHR¹ 式）。例如，芳香族乙烯基化合物和共轭二烯的共聚物）；以及作为稳定剂的硫醚化合物（优选式 R⁰-S-CHR¹R²，其中 Rs 为 1-35 个 C 原子的烃基或取代烃基，R¹ 和 R² 可以是 H；28 种具体化合物如图所示）。 可选的其他成分包括：每 100 份（a）、（b）和（c）中，可加入 0.01-5 份立体受阻的苯酚化合物；以及 0.01-30 份含有-C=C-或-C=C-键和极性基团（如羧基）的化合物。 混合温度为 200-380°C，熔体经过挤压和造粒。 得到的树脂组合物可以模塑成大尺寸的产品，例如汽车零件，并且具有很强的耐溶剂性。
• Process for the preparation of Polyphenylene ether-polyamide resin compositions
  申请人：MITSUBISHI PETROCHEMICAL CO., LTD.

  公开号：EP0270796A1

  公开（公告）日：1988-06-15

  A resin composition comprising (a) a polyphenylene ether resin, (b) a non-crystalline or low-crystalline polyamide resin, (c) a crystalline polyamide resin and, if desired, (d) a polar compound or a low-molecular diene bolymer or the component (d) and (e) a rubbery polymer or an alkenyl aromatic compound/conjugated diene copolymer or a hydrogeneration product thereof. The composition is excellent in both impact strength, barticularly on a plane part of a plate-molded article, and dimensional stability.

  一种树脂组合物，包括(a)聚苯醚树脂，(b)非结晶或低结晶聚酰胺树脂，(c)结晶聚酰胺树脂，如果需要，还包括(d)极性化合物或低分子二烯共聚物或组分(d)和(e)橡胶聚合物或烯基芳香族化合物/共轭二烯共聚物或其水解产物。这种组合物在冲击强度（尤其是在板模制品的平面部分）和尺寸稳定性方面都非常出色。