2-methyl-3-(5-acetylthiophen-3-yl)propyl acetate | 249745-56-0

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-methyl-3-(5-acetylthiophen-3-yl)propyl acetate
• CAS: 249745-56-0
• 化学式: C₁₂H₁₆O₃S
• 分子量: 240.323
• InChiKey: DYSPKKVFSHGMRW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.69
• 重原子数：
  16.0
• 可旋转键数：
  5.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  43.37
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  2-methyl-3-(5-acetylthiophen-3-yl)propyl acetate 在 氢氧化钾 、 一水合肼 作用下， 以 二乙二醇 为溶剂， 反应 3.0h， 以0.94 g的产率得到2-methyl-3-(5-ethylthiophen-3-yl)propanol
  参考文献：
  名称：

  Sex Pheromone of the Pine Sawfly, Macrodiprion nemoralis. Stereoselective Synthesis of the Sixteen Stereoisomers of 3,7,9-Trimethyl-2-tridecyl Acetate.

  摘要：

  The sixteen stereoisomers of 3,7,9-trimethyl-2-tridecyl acetate (5Ac) were prepared individually, each in over 99.5% stereochemical purity. The syntheses were based on the ring opening of a pure enantiomer of cis-3,4-dimethyl-gamma-butyrolactone using a pure stereoisomer of 1-lithio-2,4-dimethyloctane, the two stereogenic centres of which were introduced with high selectivity by alkylations of the amide enolates from the appropriate enantiomers of pseudoephedrine. (2S,3R,7R,9S)-3,7,9-Trimethyl-2-tridecyl acetate (SRRS-5Ac) has recently been found to be the major component of the female sex pheromone of Macrodiprion nemoralis (Hymenoptera: Diprionidae). A synthetic method for the preparation of a sixteen isomer mixture of 5Ac is also presented. This mixture has been found to be biologically active in field tests.

  DOI：

  10.3891/acta.chem.scand.53-0620
• 作为产物：
  描述：

  3-溴甲基噻吩 在 氢氧化钾 、 lithium aluminium tetrahydride 、 sodium 、 四氯化锡 作用下， 以 乙醚 、 乙醇 、 二氯甲烷 为溶剂， 反应 56.0h， 生成 2-methyl-3-(5-acetylthiophen-3-yl)propyl acetate
  参考文献：
  名称：

  Sex Pheromone of the Pine Sawfly, Macrodiprion nemoralis. Stereoselective Synthesis of the Sixteen Stereoisomers of 3,7,9-Trimethyl-2-tridecyl Acetate.

  摘要：

  The sixteen stereoisomers of 3,7,9-trimethyl-2-tridecyl acetate (5Ac) were prepared individually, each in over 99.5% stereochemical purity. The syntheses were based on the ring opening of a pure enantiomer of cis-3,4-dimethyl-gamma-butyrolactone using a pure stereoisomer of 1-lithio-2,4-dimethyloctane, the two stereogenic centres of which were introduced with high selectivity by alkylations of the amide enolates from the appropriate enantiomers of pseudoephedrine. (2S,3R,7R,9S)-3,7,9-Trimethyl-2-tridecyl acetate (SRRS-5Ac) has recently been found to be the major component of the female sex pheromone of Macrodiprion nemoralis (Hymenoptera: Diprionidae). A synthetic method for the preparation of a sixteen isomer mixture of 5Ac is also presented. This mixture has been found to be biologically active in field tests.

  DOI：

  10.3891/acta.chem.scand.53-0620