二十八碳-1-烯 | 18835-34-2

• 分子结构分类: 有机化合物 - 碳氢化合物 - 不饱和烃
• 中文名称: 二十八碳-1-烯
• 中文别名: 1-二十八(碳)烯
• 英文名称: 1-octacosene
• 英文别名: octacos-1-ene
• CAS: 18835-34-2；38888-69-6
• 化学式: C₂₈H₅₆
• 分子量: 392.753
• InChiKey: QEXZDYLACYKGOM-UHFFFAOYSA-N

物化性质

• 熔点：
  57.5°C
• 沸点：
  427.39°C (estimate)
• 密度：
  0.8077 (estimate)
• LogP：
  8 at 20℃
• 物理描述：
  Liquid
• 保留指数：
  2797;2794

计算性质

• 辛醇/水分配系数(LogP)：
  15.4
• 重原子数：
  28
• 可旋转键数：
  25
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.93
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

安全信息

• 海关编码：
  2901299090

反应信息

• 作为反应物：
  描述：

  二十八碳-1-烯 在 氧气 、 copper dichloride 、 palladium dichloride 作用下， 以 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 1.0h， 以50%的产率得到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
• 作为产物：
  描述：

  1-溴十七烷 、 11-溴-1-十一烯 在 dilithium tetrachlorocuprate 、 magnesium 作用下， 生成 二十八碳-1-烯
  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