3β-acetoxy-24-nor-chol-5-en-23-oyl chloride | 111799-65-6

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 类固醇和类固醇衍生物
• 英文名称: 3β-acetoxy-24-nor-chol-5-en-23-oyl chloride
• 英文别名: 3β-Acetoxy-24-nor-chol-5-en-23-oylchlorid；3β-Acetoxy-24-nor-cholen-(5)-saeure-(23)-chlorid；3β-Acetoxy-norchol-5-en-23-carbonsaeurechlorid
• CAS: 111799-65-6
• 化学式: C₂₅H₃₇ClO₃
• 分子量: 421.02
• InChiKey: KNDCNSRGTBMJSC-NXBNXRBISA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.29
• 重原子数：
  29.0
• 可旋转键数：
  4.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.84
• 拓扑面积：
  43.37
• 氢给体数：
  0.0
• 氢受体数：
  3.0

反应信息

• 作为反应物：
  描述：

  3β-acetoxy-24-nor-chol-5-en-23-oyl chloride 在 sodium tetrahydroborate 作用下， 以 甲醇 为溶剂， 生成 23(S)-Hydroxycholesterol
  参考文献：
  名称：

  甾醇代谢。X.差向异构的23-羟基胆固醇。

  摘要：

  DOI：

  10.1002/jps.2600590535
• 作为产物：
  描述：

  3β-acetoxy-24-nor-chol-5-en-23-oic acid 在 氯化亚砜 、 乙醚 作用下， 生成 3β-acetoxy-24-nor-chol-5-en-23-oyl chloride
  参考文献：
  名称：

  Bending strength and toughness of heat-treated wood

  摘要：

  The load-deflection curve for static bending and the force-time curve for impact bending of heat-treated wood were examined in detail. The effect of oxygen in air was also investigated. Sitka spruce (Picea sitchensis Carr.) was heated for 0.5-16.0h at a temperature of 160 degrees C in nitrogen gas or air. The dynamic Young's modulus was measured by the free-free flexural vibration test, the static Young's modulus and work needed for rupture by the static bending test, and the absorbed energy in impact bending by the impact bending test. The results obtained were as follows: (1) The static Young's modulus increased at the initial stage of the heat treatment and decreased later. It decreased more in air than in nitrogen. (2) The bending strength increased at the initial stage of the heat treatment and decreased later. It decreased more in air than in nitrogen. (3) The work needed for rupture decreased steadily as the heating lime increased. It decreased more in nitrogen than in air. It is thought that heat-treated wood was more brittle than untreated wood in the static bending test because , was reduced by the heat treatment. This means that the main factors contributing to the reduction of the work needed for rupture were viscosity and plasticity, not elasticity. (4) The absorbed energy in impact bending increased at the initial stage of the heat treatment and decreased later. It decreased more in air than in nitrogen. It was concluded that heat-treated wood became more brittle in the impact bending test because I-12 and I-23, were reduced by the heat treatment.

  DOI：

  10.1007/bf00779547

文献信息

• DE739731
  申请人：——

  公开号：——

  公开（公告）日：——