3β-acetoxy-lanost-8-en-21-oic acid methyl ester | 28413-91-4

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: 3β-acetoxy-lanost-8-en-21-oic acid methyl ester
• 英文别名: 3β-Acetoxy-lanost-8-en-21-saeure-methylester
• CAS: 28413-91-4
• 化学式: C₃₃H₅₄O₄
• 分子量: 514.789
• InChiKey: KCNGRVCWPWCVSI-DLCVLMBDSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8.28
• 重原子数：
  37.0
• 可旋转键数：
  7.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  52.6
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  过氧化氢苯甲酰 、 3β-acetoxy-lanost-8-en-21-oic acid methyl ester 生成 ent-3β-acetoxy-5β.10α-lanostadien-(7.9(11))-oic acid-(21)-methyl ester
  参考文献：
  名称：

  Bulk Burning Rate in¶Passive–Reactive Diffusion

  摘要：

  We consider a passive scalar that is advected by a prescribed mean zero divergence-free velocity field, diffuses, and reacts according to a KPP-type nonlinear reaction. We introduce a quantity, the bulk burning rate, that makes both mathematical and physical sense in general situations and extends the often iii-defined notion of front speed. We establish rigorous lower bounds for the bulk burning rate that ale linear in the amplitude of the advecting velocity for a large class of flows. These "percolating" flows ale characterized by the presence of tubes of streamlines connecting distant legions of burned and unburned material and generalize shear flows. The bound contains geometric information on the velocity streamlines and degenerates when these oscillate on scales that are finer than the width of the laminar burning region. We give also examples of very different kind of flows, cellular flows with closed streamlines, and rigorously prove that those can produce only sub-linear enhancement of the bulk burning rate.

  DOI：

  10.1007/s002050000090