(R)-(-)-1-bromo-2-methyloctane | 163530-44-7

• 分子结构分类: 有机化合物 - 有机卤素化合物 - 有机溴化物
• 英文名称: (R)-(-)-1-bromo-2-methyloctane
• 英文别名: (2R)-1-bromo-2-methyloctane
• CAS: 163530-44-7
• 化学式: C₉H₁₉Br
• 分子量: 207.154
• InChiKey: XHYRIXNUUUUPAL-SECBINFHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.8
• 重原子数：
  10
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  (3R,4R)-(+)-cis-dimethyl-(γ)-butyrolactone 、 (R)-(-)-1-bromo-2-methyloctane 以 乙醚 为溶剂， 生成 (2R,3R,7R)-2-Hydroxy-3,7-dimethyl-tridecan-5-one
  参考文献：
  名称：

  Sex pheromone of the pine sawflyDiprion pini (Hymenoptera: Diprionidae): Chemical identification, synthesis and biological activity

  摘要：

  The main component of the sex pheromone secretion of female Diprion pini L. (Hymenoptera: Diprionidae) from insects collected both in Finland and in France has been identified as a threo-3,7-dimethyl-2-tridecanol (8 ng per female) stereoisomer by GC-MS and synthesis. The secretion also contains lower and higher homologues in small amounts (1-4% of the main component). Combined gas chromatographic-electroantennographic detection showed activity in both natural and esterified extracts (acetates and propionates); the esters of the main component gave the largest responses. The acetates and propionates of the eight stereoisomers of 3,7-dimethyl-2-tridecanol were synthesized from enantiomerically highly enriched (> 99% ee) building blocks. The stereochemistry of the main component was established to be (2S,3R,7R) -3,7-dimethyl-2-tridecanol by GC analysis of the natural material. It was purified by liquid chromatography prior to the GC analysis of both its pentafluorobenzoates and its isopropylcarbamates on a nonchiral polar column (ECD) and a chiral column (NPD), respectively. Field tests demonstrated that both the acetate and propionate of the main component (100 mu g of each applied on cotton roll dispensers) were active in attracting males, with or without the presence of several of the minor compounds. Experiments with smaller amounts of the acetate and the propionate (1 mu g in France and 50 mu g in Finland) demonstrated that the propionate was more active than the acetate, and that it also caught more males than a blend of the two compounds.

  DOI：

  10.1007/bf01928898
• 作为产物：
  描述：

  (R)-2-methyl-octyl toluene-4-sulfonate 在 lithium bromide 作用下， 以 丙酮 为溶剂， 生成 (R)-(-)-1-bromo-2-methyloctane
  参考文献：
  名称：

  Sex pheromone of the pine sawflyDiprion pini (Hymenoptera: Diprionidae): Chemical identification, synthesis and biological activity

  摘要：

  The main component of the sex pheromone secretion of female Diprion pini L. (Hymenoptera: Diprionidae) from insects collected both in Finland and in France has been identified as a threo-3,7-dimethyl-2-tridecanol (8 ng per female) stereoisomer by GC-MS and synthesis. The secretion also contains lower and higher homologues in small amounts (1-4% of the main component). Combined gas chromatographic-electroantennographic detection showed activity in both natural and esterified extracts (acetates and propionates); the esters of the main component gave the largest responses. The acetates and propionates of the eight stereoisomers of 3,7-dimethyl-2-tridecanol were synthesized from enantiomerically highly enriched (> 99% ee) building blocks. The stereochemistry of the main component was established to be (2S,3R,7R) -3,7-dimethyl-2-tridecanol by GC analysis of the natural material. It was purified by liquid chromatography prior to the GC analysis of both its pentafluorobenzoates and its isopropylcarbamates on a nonchiral polar column (ECD) and a chiral column (NPD), respectively. Field tests demonstrated that both the acetate and propionate of the main component (100 mu g of each applied on cotton roll dispensers) were active in attracting males, with or without the presence of several of the minor compounds. Experiments with smaller amounts of the acetate and the propionate (1 mu g in France and 50 mu g in Finland) demonstrated that the propionate was more active than the acetate, and that it also caught more males than a blend of the two compounds.

  DOI：

  10.1007/bf01928898

文献信息

• Sex pheromone of the pine sawflyDiprion pini (Hymenoptera: Diprionidae): Chemical identification, synthesis and biological activity
  作者：G. Bergström、A. -B. Wassgren、O. Anderbrant、J. Fägerhag、H. Edlund、E. Hedenström、H. -E. Högberg、C. Geri、M. A. Auger、M. Varama、B. S. Hansson、J. Löfqvist

  DOI：10.1007/bf01928898

  日期：1995.4

  The main component of the sex pheromone secretion of female Diprion pini L. (Hymenoptera: Diprionidae) from insects collected both in Finland and in France has been identified as a threo-3,7-dimethyl-2-tridecanol (8 ng per female) stereoisomer by GC-MS and synthesis. The secretion also contains lower and higher homologues in small amounts (1-4% of the main component). Combined gas chromatographic-electroantennographic detection showed activity in both natural and esterified extracts (acetates and propionates); the esters of the main component gave the largest responses. The acetates and propionates of the eight stereoisomers of 3,7-dimethyl-2-tridecanol were synthesized from enantiomerically highly enriched (> 99% ee) building blocks. The stereochemistry of the main component was established to be (2S,3R,7R) -3,7-dimethyl-2-tridecanol by GC analysis of the natural material. It was purified by liquid chromatography prior to the GC analysis of both its pentafluorobenzoates and its isopropylcarbamates on a nonchiral polar column (ECD) and a chiral column (NPD), respectively. Field tests demonstrated that both the acetate and propionate of the main component (100 mu g of each applied on cotton roll dispensers) were active in attracting males, with or without the presence of several of the minor compounds. Experiments with smaller amounts of the acetate and the propionate (1 mu g in France and 50 mu g in Finland) demonstrated that the propionate was more active than the acetate, and that it also caught more males than a blend of the two compounds.