2-cyclopentylcyclohexanone | 73708-62-0

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-cyclopentylcyclohexanone
• 英文别名: 2-Cyclopentyl-cyclohexanon；2-cyclopentylcyclohexan-1-one
• CAS: 73708-62-0
• 化学式: C₁₁H₁₈O
• 分子量: 166.263
• InChiKey: SRSWSZYOGZLSMD-UHFFFAOYSA-N

物化性质

• 沸点：
  120-122 °C(Press: 15 Torr)
• 密度：
  0.974 g/cm3(Temp: 25 °C)

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.91
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  2-cyclopentylcyclohexanone 在 过氧化脲素 、 溶剂黄146 作用下， 60.0 ℃ 、100.0 kPa 条件下， 反应 6.0h， 生成 7-cyclopentyloxepan-2-one
  参考文献：
  名称：

  Oxidation of the cyclopentanone and cyclohexanone alkyl derivatives in a pseudohomogeneous system without a phase transfer agent

  摘要：

  The reaction of catalytic oxidation of C-5-C-12 alkyl- and cycloalkylcyclopentanones and -cyclohexanones to lactones in a pseudohomogeneous system without the participation of phase transfer agents was investigated. It was established that the catalytic systems prepared on the basis of molybdenum and tungsten blue (MeO (n) Br (m) , where Me = Mo, W, n = 1, 2, m = 2, 3) and H3PO4 deposited on powdered activated carbon AG-3 at 40-60A degrees C, at 5-6 h duration exhibit a high selectivity in the reaction of nucleophilic addition of oxygen to the ketones with the formation of the valero- and caprolactones.

  DOI：

  10.1134/s1070363211080147
• 作为产物：
  描述：

  alkaline earth salt of/the/ methylsulfuric acid 在 palladium on activated charcoal 、 溶剂黄146 作用下， 生成 2-cyclopentylcyclohexanone
  参考文献：
  名称：

  Winternitz; Mousseron, Bulletin de la Societe Chimique de France, 1949, p. 713,717

  摘要：

  DOI：

文献信息

• Catalytic Cross-Coupling of Alkylzinc Halides with α-Chloroketones
  作者：Chrysa F. Malosh、Joseph M. Ready

  DOI：10.1021/ja0467768

  日期：2004.8.1

  this method, primary and secondary alkyl groups are introduced adjacent to a ketone carbonyl under mild reaction conditions and in good yield. Cyclic, acyclic, aromatic, and aliphatic α-chloroketones are suitable substrates. Optically active α-chloroketones are converted to optically active products. The reaction was found to proceed stereospecifically with inversion of stereochemistry. The reaction

  描述了由 Cu(acac)2 催化的烷基卤化锌与 α-氯酮的交叉偶联。使用这种方法，伯和仲烷基在温和的反应条件下以良好的收率与酮羰基相邻引入。环状、无环、芳香族和脂肪族 α-氯酮是合适的底物。旋光α-氯酮转化为旋光产物。发现反应立体定向地进行，立体化学反转。建议通过用有机铜、-镁或-锌物种的烷基直接取代氯化物来发生反应。
• The photochemical cycloaddition reaction of 2-cyclohexenone with alkenes: Trapping of triplet 1,4-biradical intermediates with hydrogen selenide
  作者：David J. Maradyn、Alan C. Weedon

  DOI：10.1016/0040-4039(94)88255-x

  日期：1994.10

  the alkene that becomes bonded to the enone in the biradical intermediates. The yields of the trapped biradicals indicate that the regiochemistry of the photocycloaddition reaction is determined by the manner in which the biradicals partition between fragmentation to give ground state starting materials and closure to give product, and not by their relative rates of formation. The results suggest that

  在2-环己烯酮与烯烃环戊烯和乙氧基乙烯之间的光化学环加成反应中形成的三重1，4-双自由基中间体已被硒化氢定量捕集。双自由基的结构表明，它们是通过烯酮的2位和3位都键合到烯烃的一个末端上而形成的。在乙氧基乙烯的情况下，在双自由基中间体中，只有烯键取代度较低的末端才与烯酮键合。被捕获的双基自由基的产率表明，光环加成反应的区域化学是由双基自由基在断裂以给出基态起始材料和闭合以得到产物之间分配的方式决定的，而不是由它们的相对形成速率决定的。
• Process For Production of 2-Benzylphenol Compound
  申请人：Kawazoe Kentaro

  公开号：US20080194882A1

  公开（公告）日：2008-08-14

  A process for producing a 2-benzylphenol compound represented by the following formula (2): wherein, R 1 , R 2 , R 3 and R 4 may be the same or different and are each independently hydrogen atom, alkyl group or the like; and R 5 , R 6 , R 7 , R 8 and R 9 are the same or different and are each independently hydrogen atom, alkyl group or the like, the process including reacting, in the presence of a dehydrogenating agent, a benzylidenecyclohexanone compound represented by the following formula (1) wherein, R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 and R 9 have the same definitions as given above).

  一种生产以下式子(2)所代表的2-苄基苯酚化合物的方法： 其中，R1、R2、R3和R4可能相同或不同，分别独立地为氢原子、烷基或类似物；而R5、R6、R7、R8和R9也可能相同或不同，分别独立地为氢原子、烷基或类似物。该方法包括在脱氢剂存在下反应以下式子(1)所代表的苄基环己酮化合物： 其中，R1、R2、R3、R4、R5、R6、R7、R8和R9的定义与上述相同。
• METHOD FOR PRODUCING 2-BENZYLPHENOL COMPOUND
  申请人：IHARA CHEMICAL INDUSTRY CO., LTD.

  公开号：EP1810957A1

  公开（公告）日：2007-07-25

  [Task] Provide a process for producing a 2-benzylphenol compound easily, efficiently and selectively. [Means for Achievement] A process for producing a 2-benzylphenol compound represented by the following general formula (2) (in the formula, R1, R2, R3 and R4 may be the same or different and are each independently hydrogen atom, alkyl group or the like; and R5, R6, R7, R8 and R9 may be the same or different and are each independently hydrogen atom, alkyl group or the like), characterized by reacting, in the presence of a dehydrogenating agent, a benzylidenecyclohexanone compound represented by the following general formula (1) (in the formula, R1, R2, R3, R4, R5, R6, R7, R8 and R9 have the same definitions as given above). [Effect] A 2-benzylphenol compound substantially free from isomers can be produced from a benzylidenecyclohexanone compound (an easily obtainable raw material) selectively, efficiently and in a simple operation, under mild conditions without using any special reactor.

  任务 提供一种简便、高效、选择性地生产 2-苄基苯酚化合物的工艺。 [实现途径］ 一种由以下通式（2）表示的 2-苄基苯酚化合物的生产工艺 (式中，R1、R2、R3 和 R4 可以相同或不同，且各自独立地为氢原子、烷基或类似基团；R5、R6、R7、R8 和 R9 可以相同或不同，且各自独立地为氢原子、烷基或类似基团），其特征在于，在脱氢剂存在下，由下式通式（1）表示的亚苄基环己酮化合物发生反应 (式中，R1、R2、R3、R4、R5、R6、R7、R8 和 R9 的定义与上式相同）。 效果 在温和的条件下，无需使用任何特殊的反应器，就可以通过简单的操作，从亚苄基环己酮化合物（一种容易获得的原料）中选择性地、高效地生产出基本上不含异构体的 2-苄基苯酚化合物。
• PROCESS FOR PRODUCING 2-ALKYLCYCLOALKANONE
  申请人：Kao Corporation

  公开号：EP2487150A1

  公开（公告）日：2012-08-15

  The present invention relates to a process for producing 2-alkylcycloalkanones with a high yield and a high purity. In addition, the present invention also relates to a process for producing lactones as a useful perfume material for cosmetics, flavors, etc. More specifically, the present invention relates to a process for producing a 2-alkylcycloalkanone represented by the following general formula (2) which includes the step of subjecting a 2-(1-hydroxyalkyl)-cycloalkanone to dehydration and hydrogenation reaction in a flow of a hydrogen gas under a pressure of from 20 to 200 kPa (absolute pressure) in the presence of an acid and a platinum group metal catalyst; and a process for producing a lactone which includes the step of subjecting the 2-alkylcycloalkanone to oxidation reaction using a percarboxylic acid: wherein n is an integer of 1 or 2; and R1 and R2 are each independently a hydrogen atom or an alkyl group having 1 to 8 carbon atoms with the proviso that R1 and R2 may form a ring through a carbon atom adjacent thereto.

  本发明涉及一种以高产率和高纯度生产 2-烷基环烷酮的工艺。此外，本发明还涉及一种生产内酯的工艺，这种内酯是一种有用的香水材料，可用于化妆品、香精等。更具体地说，本发明涉及一种生产由以下通式（2）代表的 2-烷基环烷酮的工艺，该工艺包括以下步骤：在一种酸和一种铂族金属催化剂存在下，使 2-（1-羟基烷基）-环烷酮在压力为 20 至 200 kPa（绝对压力）的氢气流中进行脱水和氢化反应；以及一种生产内酯的工艺，其中包括使用过羧酸使 2-烷基环烷酮进行氧化反应的步骤： 其中n为1或2的整数；R1和R2各自独立地为氢原子或具有1至8个碳原子的烷基，但R1和R2可通过相邻的碳原子形成环。