methyl 3-cyclohexyl-4-hydroxy-2-methylenebutanoate | 204334-93-0

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: methyl 3-cyclohexyl-4-hydroxy-2-methylenebutanoate
• 英文别名: Methyl 3-cyclohexyl-4-hydroxy-2-methylidenebutanoate
• CAS: 204334-93-0
• 化学式: C₁₂H₂₀O₃
• 分子量: 212.289
• InChiKey: DOSDHARKNYNIFZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  15
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  methyl 3-cyclohexyl-4-hydroxy-2-methylenebutanoate 在 咪唑 、 N-溴代丁二酰亚胺(NBS) 、 二异丁基氢化铝 、 三苯基膦 作用下， 以 四氢呋喃 、 正己烷 、 二氯甲烷 为溶剂， 反应 22.0h， 生成 [3-(Bromomethyl)-2-cyclohexylbut-3-enoxy]-tert-butyl-dimethylsilane
  参考文献：
  名称：

  Effective 1,4-Asymmetric C−C/C−O Stereoinduction in Indium-Promoted Coupling Reactions of Aldehydes to Protected and Unprotected [1-(Bromomethyl)vinyl] Alkanols. The Status of Intramolecular Chelation within Functionalized Allylindium Reagents

  摘要：

  The stereochemistry of the coupling reactions of oxygen-substituted bromides 8-10 with isobutyraldehyde, benzaldehyde, and cyclohexanecarboxaldehyde in water is described. The examples involving the O-silylated derivatives 8 exhibit moderate anti stereoselectivity. In contrast, rather high (most often in excess of 80:20) syn diastereofacial bias is observed when hydroxy bromides 10 are involved. Consequently, stereocontrolled 1,4-asymmetric induction under aqueous conditions can be realized in either direction on demand. These results are considered to reflect the fact that the siloxy systems enter into C-C bond formation via conventional Felkin-Anh transition state arrangements. The crossover observed for the unprotected analogues is believed to be a consequence of the preferred adoption of chelated transition states, these interactions likely being fundamental to aqueous organometallic chemistry.

  DOI：

  10.1021/jo9715534
• 作为产物：
  描述：

  聚合甲醛 、 methyl (Z)-2-(bromomethyl)-3-cyclohexylacrylate 在 indium 作用下， 以 四氢呋喃 、 水 为溶剂， 反应 17.0h， 以91%的产率得到methyl 3-cyclohexyl-4-hydroxy-2-methylenebutanoate
  参考文献：
  名称：

  Factors influencing the cytotoxicity of α-methylene-γ-hydroxy esters against pancreatic cancer

  摘要：

  A systematic study to identify the factors influencing the cytotoxicity of a-methylene-c-hydroxy esters against three pancreatic cancer cell lines (Panc-1, MIA-PaCa-2, and BxPC-3) has established that, in addition to Michael acceptor abilities, the possibility to lactonize to alpha-methylene-gamma-butyrolactones is as important. The substitution pattern and the number of carbons between the hydroxy and ester moieties also influence the bio-activity. (C) 2015 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2015.07.087