2-oxooctacosane | 77327-13-0

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-oxooctacosane
• 英文别名: 2-octacosanone；Octacosan-2-one
• CAS: 77327-13-0
• 化学式: C₂₈H₅₆O
• 分子量: 408.752
• InChiKey: BBJSMNGJPBTQER-UHFFFAOYSA-N

物化性质

• 熔点：
  79°C (estimate)
• 沸点：
  454.2°C (rough estimate)
• 密度：
  0.8687 (rough estimate)

计算性质

• 辛醇/水分配系数(LogP)：
  13.3
• 重原子数：
  29
• 可旋转键数：
  25
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.96
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  2-oxooctacosane 在 palladium on activated charcoal 氢气 、 sodium hydride 作用下， 以 乙醇 为溶剂， 反应 4.0h， 生成 ethyl 3-methylnonacosanoate
  参考文献：
  名称：

  Synthesis of racemic and each enantiomer of 3-methylnonacosanol, a new plant growth regulator from Lowsonia inermis

  摘要：

  An efficient synthesis of the title compound I in racemic and enantiomeric forms has been developed starting from 10-undecenoic acid. For the enantiomeric synthesis, a lipase catalyzed acylation strategy was employed to prepare the required methyl branched chiron which was subsequently derivatized to give the enantiomers of I. The plant growth regulatory (PGR) assay of I, carried out with hypocotyl cuttings of French beans (Phaseolus vulgaris L.) in Steinberg's nutrient medium revealed appreciable activity at a concentration of 2.5 ppm. The PGR activities of the compound both in racemic and enantiomeric forms were better than 1-triacontanol, the enantiomer, (S)-I being the best test candidate. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0957-4166(99)00150-0
• 作为产物：
  描述：

  1-溴十七烷 在 dilithium tetrachlorocuprate 、 氧气 、 magnesium 、 copper dichloride 、 palladium dichloride 作用下， 以 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 4.0h， 生成 2-oxooctacosane
  参考文献：
  名称：

  Synthesis of racemic and each enantiomer of 3-methylnonacosanol, a new plant growth regulator from Lowsonia inermis

  摘要：

  An efficient synthesis of the title compound I in racemic and enantiomeric forms has been developed starting from 10-undecenoic acid. For the enantiomeric synthesis, a lipase catalyzed acylation strategy was employed to prepare the required methyl branched chiron which was subsequently derivatized to give the enantiomers of I. The plant growth regulatory (PGR) assay of I, carried out with hypocotyl cuttings of French beans (Phaseolus vulgaris L.) in Steinberg's nutrient medium revealed appreciable activity at a concentration of 2.5 ppm. The PGR activities of the compound both in racemic and enantiomeric forms were better than 1-triacontanol, the enantiomer, (S)-I being the best test candidate. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0957-4166(99)00150-0

文献信息

• RESIN COMPOSITION AND USE THEREOF
  申请人：Sumitomo Chemical Company Limited

  公开号：EP3492526A1

  公开（公告）日：2019-06-05

  A resin composition comprising: a polymer (1) whose enthalpy of fusion (ΔH) observed within a temperature range of 10°C or higher and lower than 60°C in differential scanning calorimetry is 30 J/g or more; and a low-molecular-weight compound (3) whose enthalpy of fusion (ΔH) observed within a temperature range of 0°C or higher and lower than 100°C in differential scanning calorimetry is 30 J/g or more and whose molecular weight is 2000 or lower, wherein a content of the low-molecular-weight compound (3) is 3 parts by weight or more and 1000 parts by weight or less, with respect to 100 parts by weight of the total amount of polymer components contained in the resin composition except the low-molecular-weight compound (3) which is a polymer.

  一种树脂组合物，包括 一种聚合物 (1)，其在差示扫描量热仪中观察到的高于 10°C 低于 60°C 的温度范围内的熔焓 (ΔH)为 30 J/g 或以上；以及 低分子量化合物 (3)，其在差示扫描量热法中观察到的高于 0°C 低于 100°C 的温度范围内的熔焓 (ΔH)为 30 J/g 或以上，且分子量为 2000 或以下，其中 相对于树脂组合物中所含聚合物成分（低分子量化合物 (3) 除外）总量的 100 重量份，低分子量化合物 (3) 的含量为 3 重量份或以上，1000 重量份或以下。
• Synthesis of racemic and each enantiomer of 3-methylnonacosanol, a new plant growth regulator from Lowsonia inermis
  作者：Bheemashankar A Kulkarni、Sivaraman Sankaranarayanan、Ayalur S Subbaraman、Subrata Chattopadhyay

  DOI：10.1016/s0957-4166(99)00150-0

  日期：1999.4

  An efficient synthesis of the title compound I in racemic and enantiomeric forms has been developed starting from 10-undecenoic acid. For the enantiomeric synthesis, a lipase catalyzed acylation strategy was employed to prepare the required methyl branched chiron which was subsequently derivatized to give the enantiomers of I. The plant growth regulatory (PGR) assay of I, carried out with hypocotyl cuttings of French beans (Phaseolus vulgaris L.) in Steinberg's nutrient medium revealed appreciable activity at a concentration of 2.5 ppm. The PGR activities of the compound both in racemic and enantiomeric forms were better than 1-triacontanol, the enantiomer, (S)-I being the best test candidate. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.