1-ethylcyclopentane-1-carbaldehyde | 99799-87-8

• 分子结构分类: 有机化合物 - 有机氧化合物 - 有机氧化物
• 英文名称: 1-ethylcyclopentane-1-carbaldehyde
• 英文别名: 1-ethyl-cyclopentanecarbaldehyde；1-Aethyl-cyclopentancarbaldehyd；1-Ethylcyclopentane-1-carbaldehyde
• CAS: 99799-87-8
• 化学式: C₈H₁₄O
• 分子量: 126.199
• InChiKey: CWWPJCWIEQPXRF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  9
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.88
• 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：

  1-ethylcyclopentane-1-carbaldehyde 在 氢气 、 溶剂黄146 、 铂 作用下， 生成 (+/-)-1-cyclopentylpropan-1-ol
  参考文献：
  名称：

  Precipitation from a reactive silicate on MgO

  摘要：

  本文研究了活性硅酸盐液体与氧化镁单晶体 (001) 表面之间的高温相互作用。论文讨论了氧化镁表面的形态对硅酸盐液体的脱湿性和硅酸盐液体中过量氧化镁的析出机制的影响。本文考虑了氧化镁沉淀的其他途径：可能是通过氧化镁表面的成核和高原生长，也可能是通过表面阶梯吸收氧化镁。在平坦的氧化镁（001）表面上，氧化镁从连续的硅酸盐液体层中析出，形成板状沉淀。在阶梯状氧化镁（001）表面上，从断开的硅酸盐液滴中析出的氧化镁会在表面阶梯处形成脊状。

  DOI：

  10.1557/jmr.2002.0444
• 作为产物：
  描述：

  alkaline earth salt of/the/ methylsulfuric acid 在 乙醚 、 magnesium bromide ethyl etherate 作用下， 生成 1-ethylcyclopentane-1-carbaldehyde
  参考文献：
  名称：

  The Rearrangement of Cyclohexene Oxides with Magnesium Bromide Etherate^1-3

  摘要：

  DOI：

  10.1021/ja01580a046

文献信息

• Ligand‐Controlled Direct γ‐C−H Arylation of Aldehydes
  作者：Bijin Li、Brianna Lawrence、Guigen Li、Haibo Ge

  DOI：10.1002/anie.201913126

  日期：2020.2.17

  The first example of PdII -catalyzed γ-C(sp3 )-H functionalization of aliphatic and benzoheteroaryl aldehydes has been developed using a transient ligand and an external ligand, concurrently. A wide array of γ-arylated aldehydes were readily accessed without preinstalling internal directing groups. The catalytic mechanism was studied by performing deuterium-labelling experiments, which indicated that

  同时使用瞬态配体和外部配体开发了PdII催化的脂肪族和苯并杂芳基醛的γ-C（sp3）-H官能化的第一个例子。无需预先安装内部导向基团即可轻松获得各种各样的γ-芳基化醛。通过氘标记实验研究了其催化机理，表明γ-C（sp3）-H键的裂解是反应过程中的限速步骤。该反应可以以克为单位进行，并且还证明了其在具有蓝移的机械变色特性的新的机械荧光变色材料的合成中的潜在应用。
• METALLOCENE COMPOUNDS, CATALYSTS COMPRISING THEM, PROCESS FOR PRODUCING AN OLEFIN POLYMER BY USE OF THE CATALYSTS, AND OLEFIN HOMO- AND COPOLYMERS
  申请人：Sell Thorsten

  公开号：US20110230630A1

  公开（公告）日：2011-09-22

  Certain metallocene compounds are provided that, when used as a component in a supported polymerization catalyst under industrially relevant polymerization conditions, afford high molar mass homo polymers or copolymers like polypropylene or propylene/ethylene copolymers without the need for any α-branched substituent in either of the two available 2-positions of the indenyl ligands. The substituent in the 2-position of one indenyl ligand can be any radical comprising hydrogen, methyl, or any other C 2 -C 40 hydrocarbon which is not branched in the α-position, and substituent in the 2-position of the other indenyl ligand can be any C 5 -C 40 hydrocarbon radical with the proviso that this hydrocarbon radical is branched in the β-position and that the β-carbon atom is a quarternary carbon atom and part of a non-cyclic hydrocarbon system. This metallocene topology affords high melting point, very high molar mass homo polypropylene and very high molar mass propylene-based copolymers. Furthermore, the activity/productivity levels of catalysts comprising the metallocenes of the present invention are exceptionally high.

  提供了某些金属茂化合物，当其作为支持的聚合催化剂的组分在工业相关的聚合条件下使用时，可以获得高摩尔质量的同聚物或共聚物，如聚丙烯或丙烯/乙烯共聚物，而不需要在茂环配体的两个可用的2位上的任何一个中引入任何α-支链取代基。其中一个茂环配体的2位上的取代基可以是包括氢、甲基或任何其他未在α位支链的C2-C40碳氢化合物的任何基团，另一个茂环配体的2位上的取代基可以是任何C5-C40碳氢化合物基团，但须满足这个碳氢化合物基团在β位支链，并且β碳原子是一个季铵碳原子，并且是非环烃体系的一部分。这种茂金属拓扑结构可以获得高熔点、非常高摩尔质量的同聚丙烯和非常高摩尔质量的基于丙烯的共聚物。此外，本发明的金属茂催化剂的活性/生产率水平异常高。
• Reactions to tick antitoxin serum and the role of atropine in treatment of dogs and cats with tick paralysis caused by Ixodes holocyclus: a pilot survey
  作者：RB ATWELL、FE CAMPBELL

  DOI：10.1111/j.1751-0813.2001.tb12980.x

  日期：2001.6

  Objective To determine the incidence and nature of adverse reactions of dogs and cats to tick antitoxin serum and to re‐evaluate the role of atropine in the treatment of tick paralysis.Design A retrospective questionnaire of veterinarians.Procedure Questionnaires were posted to 320 veterinarians in tick‐endemic regions of Australia. Questions referred to dogs and cats treated for tick paralysis over a period of three years: the number treated, treatment protocols and adverse systemic reactions to tick antitoxin serum. Ninety completed questionnaires were returned and responses analysed.Results Veterinarians reported that approximately 3% of dogs exhibited adverse reactions immediately following treatment with tick antitoxin serum. Eighteen percent of these reactions were described as anaphylaxis, with the remaining 82% attributed to the Bezold‐Jarisch reflex. Six percent of cats treated with tick antitoxin serum reacted adversely and the majority of reactions (63%) were ascribed to the Bezold‐Jarisch reflex. Atropine was used routinely by 10% of responding veterinarians in the treatment of dogs and cats with tick paralysis. A similar number of veterinarians used atropine only in selected cases. Most veterinarians (76%) reported that they never used atropine in the treatment of tick paralysis in either dogs or cats. Within the survey population, premedication with atropine reduced the number of Bezold‐Jarisch reactions following tick antitoxin administration approximately five‐fold in dogs and four‐fold in cats.Conclusions Data from this pilot survey indicate that more cats than dogs have adverse systemic reactions to tick antitoxin serum and that the majority of these reactions in both dogs and cats could be related to the Bezold‐Jarisch reflex. The number of reactions to tick antitoxin serum in dogs and cats could be significantly reduced by the routine use of atropine prior to administration of tick antitoxin serum.
• The Rearrangement of Cyclohexene Oxides with Magnesium Bromide Etherate^1-3
  作者：Saiyid M. Naqvi、Jerome P. Horwitz、Robert Filler

  DOI：10.1021/ja01580a046

  日期：1957.12
• Precipitation from a reactive silicate on MgO
  作者：S. V. Yanina、C. Barry Carter

  DOI：10.1557/jmr.2002.0444

  日期：2002.12

  For this paper, high-temperature interactions between a reactive silicate liquid and the (001) surface of a MgO single crystal were studied. The paper discusses the influence of the morphology of the MgO surface on both the dewetting of a silicate liquid and the mechanism of precipitation of excess MgO out of this silicate liquid. Alternative pathways were considered for MgO precipitation; it may occur by nucleation and growth of plateaus on the MgO surface or by MgO absorption at surface steps. On flat MgO(001) surfaces, precipitation of MgO from the continuous layer of silicate liquid led to the formation of plateaulike precipitates. Precipitation from disconnected silicate droplets onto stepped MgO(001) surfaces resulted in the growth of ridges at steps on the surface.

  本文研究了活性硅酸盐液体与氧化镁单晶体 (001) 表面之间的高温相互作用。论文讨论了氧化镁表面的形态对硅酸盐液体的脱湿性和硅酸盐液体中过量氧化镁的析出机制的影响。本文考虑了氧化镁沉淀的其他途径：可能是通过氧化镁表面的成核和高原生长，也可能是通过表面阶梯吸收氧化镁。在平坦的氧化镁（001）表面上，氧化镁从连续的硅酸盐液体层中析出，形成板状沉淀。在阶梯状氧化镁（001）表面上，从断开的硅酸盐液滴中析出的氧化镁会在表面阶梯处形成脊状。