heptadecane-2,4-dione | 64042-18-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: heptadecane-2,4-dione
• 英文别名: Heptadecan-2,4-dion；Tetradecoylaceton；Myristoylaceton；2,4-Heptadecanedione
• CAS: 64042-18-8
• 化学式: C₁₇H₃₂O₂
• 分子量: 268.44
• InChiKey: VZRNDOSIHXJXCH-UHFFFAOYSA-N

物化性质

• 物理描述：
  Solid
• 熔点：
  42.5°C
• 保留指数：
  1874

计算性质

• 辛醇/水分配系数(LogP)：
  6.1
• 重原子数：
  19
• 可旋转键数：
  14
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  34.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  heptadecane-2,4-dione 在 乙醇 、 sodium methylate 作用下， 生成 3-(2,5-dihydroxy-3,4,6-trimethyl-phenyl)-heptadecane-2,4-dione
  参考文献：
  名称：

  Smith; Boyack, Journal of the American Chemical Society, 1948, vol. 70, p. 2693

  摘要：

  DOI：
• 作为产物：
  描述：

  五甲基呋喃溴酸酯 、 丙酮 在 甲醇 、 kerosine 、 sodium hydride 作用下， 生成 heptadecane-2,4-dione
  参考文献：
  名称：

  DE709227

  摘要：

  公开号：

文献信息

• Improving stability at moderate temperatures of motor vehicle components shaped from polyvinyl chloride resin compositions
  申请人：WITCO CORPORATION

  公开号：EP0331095A1

  公开（公告）日：1989-09-06

  Motor vehicle components are provided having an improved stability at moderate temperatures and shaped from polyvinyl chloride resin compositions, comprising a polyvinyl chloride resin, at least one heat stabilizer in a sufficient amount to impart heat processing stability, and a S-diketone in a sufficient amount to provide, after forming, stability at moderate temperatures not provided by any residual heat stabilizer, as well as polyvinyl chloride resin stabilizer compositions and polyvinyl chloride resin compositions containing such heat stabilizer compositions suitable for use in forming motor vehicle components, comprising at least one heat stabilizer and a β-diketone.

  本发明提供了在中等温度下具有更高的稳定性并由聚氯乙烯树脂组合物成型的汽车部件，聚氯乙烯树脂组合物包括聚氯乙烯树脂、至少一种足够量的热稳定剂以赋予热加工稳定性，以及一种足够量的S-二酮以在成型后提供任何残余热稳定剂所不提供的中等温度下的稳定性，以及聚氯乙烯树脂稳定剂组合物和含有这种热稳定剂组合物的聚氯乙烯树脂组合物、以及聚氯乙烯树脂稳定剂组合物和含有此类热稳定剂组合物的聚氯乙烯树脂组合物，适用于汽车部件的成型，该组合物包含至少一种热稳定剂和一种 β-二酮。
• Photodegradable compositions
  申请人：ROBINSON BROTHERS LIMITED

  公开号：EP0482914A2

  公开（公告）日：1992-04-29

  A polymer composition comprises a minor amount of a pro-degradant selected from essentially carbocyclic β-diketones and metal complexes thereof, e.g. 2,2′-methylene(1,3-cyclohexanedione) or its Mn(II) or Zn complex. A film of the composition may be used for the protection of seeds or seedlings at an agricultural or horticultural locus.

  聚合物组合物中含有少量的促降解剂，这种促降解剂基本上选自碳环β-二酮及其金属络合物，例如 2,2′-亚甲基（1,3-环己二酮）或其锰（II）或锌络合物。该组合物薄膜可用于保护农业或园艺领域的种子或幼苗。
• Flow Stabilization in a Transonic Wind Tunnel with a Second Throat
  作者：Thombi Layukallo、Yoshiaki Nakamura

  DOI：10.2514/2.2708

  日期：2000.11

  A second throat has been used to stabilize the how in the test section of an induction-driven transonic wind tunnel. Different second throat configurations were attempted by employing simple wall-fixed flaps and a centerline-fixed strut, and their efficiency based on the duration of stable test section how was examined. Generally, a longer duration of stable flow could be achieved when the tunnel was operated with a second throat than without one. Moreover, a longer run time was achieved with the wall-fixed flaps than with the center strut. The performance of the center strut was so poor that it raised concerns about the installation of the sting support, which is usually installed in the same manner as the center strut. It was also found that when the flaps were installed vertically on the sidewalls the low-momentum reentry how from the plenum chamber reduced the effectiveness of the flaps in choking the how The performance was greatly improved by repositioning the flaps horizontally and directly behind the reentry region. However, there was an upper limit to the effectiveness of the flaps in choking the how Beyond a certain injector total pressure the effective cross-sectional area of the diffuser at the injector's location was reduced by the jet, turning it into the effective throat area. The cross-sectional area at the second throat is rendered ineffective, causing the Mach number in the test section to temporarily drop.
• Organic condensation
  申请人：DU PONT

  公开号：US02218026A1

  公开（公告）日：1940-10-15
• Ester condensations
  申请人：DU PONT

  公开号：US02158071A1

  公开（公告）日：1939-05-16

表征谱图