(4-Methylenecyclohexylmethyl)bromide | 76825-09-7

• 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: (4-Methylenecyclohexylmethyl)bromide
• 英文别名: 1-(Bromomethyl)-4-methylidenecyclohexane
• CAS: 76825-09-7
• 化学式: C₈H₁₃Br
• 分子量: 189.095
• InChiKey: HNICCJHRSDHCEC-UHFFFAOYSA-N

物化性质

• 沸点：
  65-66 °C(Press: 28 Torr)
• 密度：
  1.24±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  9
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

安全信息

• 危险等级：
  IRRITANT

反应信息

• 作为反应物：
  描述：

  (4-Methylenecyclohexylmethyl)bromide 在 三正丁基氢锡 作用下， 反应 1.0h， 生成 1-甲基-4-亚甲基环己烷
  参考文献：
  名称：

  Synthesis of bridgehead-substituted bicyclo[2.2.1]heptanes by radical cyclization

  摘要：

  A kinetic investigation shows that the rate of cyclization (k(C)) of the (4-methylenecyclohexyl)methyl radical 3 at 25-degrees-C is 4.4 x 10(2) s-1, which is considerably slower than that (2.3 x 10(5) s-1) of the parent 5-hexenyl radical. The energy of activation for the process 3 - 4 is 12.8 kcal mol-1, which is in excellent agreement with theoretical values derived from force-field calculations. Ring-closure of appropriately substituted (4-methylenecyclohexyl)methyl radical precursors allows the synthesis of bicyclo[2.2.1]heptyl systems with useful functionality at the bridgehead to be achieved readily and in high yield. An interesting example is given of the application of an iodine-atom-transfer cyclization to the synthesis of a bicyclo[2.2.1]heptane functionalized at C7 and C1.

  DOI：

  10.1021/jo00060a029
• 作为产物：
  描述：

  4-亚甲基环己烷羧酸乙酯 在 吡啶 、 lithium aluminium tetrahydride 、 lithium bromide 作用下， 以 四氢呋喃 、 乙醚 为溶剂， 反应 62.0h， 生成 (4-Methylenecyclohexylmethyl)bromide
  参考文献：
  名称：

  Synthesis of bridgehead-substituted bicyclo[2.2.1]heptanes by radical cyclization

  摘要：

  A kinetic investigation shows that the rate of cyclization (k(C)) of the (4-methylenecyclohexyl)methyl radical 3 at 25-degrees-C is 4.4 x 10(2) s-1, which is considerably slower than that (2.3 x 10(5) s-1) of the parent 5-hexenyl radical. The energy of activation for the process 3 - 4 is 12.8 kcal mol-1, which is in excellent agreement with theoretical values derived from force-field calculations. Ring-closure of appropriately substituted (4-methylenecyclohexyl)methyl radical precursors allows the synthesis of bicyclo[2.2.1]heptyl systems with useful functionality at the bridgehead to be achieved readily and in high yield. An interesting example is given of the application of an iodine-atom-transfer cyclization to the synthesis of a bicyclo[2.2.1]heptane functionalized at C7 and C1.

  DOI：

  10.1021/jo00060a029

文献信息

• 4-Amino-4-arylcyclohexanones and their derivatives: a novel class of analgesics. 2. Modification of the carbonyl function
  作者：Daniel Lednicer、Philip F. VonVoigtlander、D. Edward Emmert

  DOI：10.1021/jm00136a010

  日期：1981.4

  modification of the carbonyl function of analgesics derived from 4-(dimethylamino)-4-arylcyclohexan-1-one was studied by reduction and by addition of nucleophiles. The resulting amino alcohols were separated and assigned structures on the basis of X-ray crystallography, NMR, and TLC mobility. The trans (OH and N) isomers were invariably more potent than the cis. Inclusion of flat lipophilic moieties (phenyl

  通过还原和添加亲核试剂，研究了对衍生自4-（二甲氨基）-4-芳基环己-1-酮的镇痛药的羰基官能团修饰的影响。分离得到的氨基醇，并基于X射线晶体学，NMR和TLC迁移率确定结构。反式（OH和N）异构体总是比顺式更有效。在距含碳羟基至少两个碳原子的距离处包含平坦的亲脂性部分（苯基，环己烯基）导致效力增加了几个数量级。讨论了其对受体相互作用的可能意义。
• LEDNICER D.; VOIGTLANDER P. F.; EMMERT D. E., J. MED. CHEM., 1981, 24, NO 4, 404-408
  作者：LEDNICER D.、 VOIGTLANDER P. F.、 EMMERT D. E.

  DOI：——

  日期：——
• Synthesis of bridgehead-substituted bicyclo[2.2.1]heptanes by radical cyclization
  作者：Ernest W. Della、Andrew M. Knill、Paul E. Pigou

  DOI：10.1021/jo00060a029

  日期：1993.4

  A kinetic investigation shows that the rate of cyclization (k(C)) of the (4-methylenecyclohexyl)methyl radical 3 at 25-degrees-C is 4.4 x 10(2) s-1, which is considerably slower than that (2.3 x 10(5) s-1) of the parent 5-hexenyl radical. The energy of activation for the process 3 - 4 is 12.8 kcal mol-1, which is in excellent agreement with theoretical values derived from force-field calculations. Ring-closure of appropriately substituted (4-methylenecyclohexyl)methyl radical precursors allows the synthesis of bicyclo[2.2.1]heptyl systems with useful functionality at the bridgehead to be achieved readily and in high yield. An interesting example is given of the application of an iodine-atom-transfer cyclization to the synthesis of a bicyclo[2.2.1]heptane functionalized at C7 and C1.