(E)-2-methyloct-2-enoic acid | 97961-67-6

• 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: (E)-2-methyloct-2-enoic acid
• CAS: 97961-67-6
• 化学式: C₉H₁₆O₂
• 分子量: 156.225
• InChiKey: SCNWTQPZTZMXBG-BQYQJAHWSA-N

物化性质

• 沸点：
  260.4±9.0 °C(Predicted)
• 密度：
  0.945±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  11
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (E)-2-methyloct-2-enoic acid 在 lithium aluminium tetrahydride 、 正丁基锂 、 氯化亚砜 、 草酰氯 、 sodium hexamethyldisilazane 、 二甲基亚砜 、 三乙胺 作用下， 以 四氢呋喃 、 二氯甲烷 、 苯 为溶剂， 反应 4.17h， 生成 (E,2S)-2-methyl-2-(phenylmethoxymethyl)oct-3-enal
  参考文献：
  名称：

  Novel stereoselective construction of a quaternary carbon: application to synthesis of the cyclopentenedione moiety of madindolines

  摘要：

  Enantioselective synthesis of the cyclopentenedione moiety of madindolines was achieved. Stereoselective construction of a quaternary carbon was realized by alkylation of an enolate possessing chiral auxiliary. Cyclopentenedione was derived from a triketone precursor by intramolecular condensation. (C) 2000 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4039(00)00937-0
• 作为产物：
  描述：

  methyl 2-[1-hydroxy-1-(pentyl)methyl]acrylate 在 氢氧化钾 作用下， 以 甲醇 为溶剂， 反应 10.0h， 生成 (E)-2-methyloct-2-enoic acid
  参考文献：
  名称：

  A facile one-pot stereoselective synthesis of trisubstituted (E)-2-methylalk-2-enoic acids from unactivated Baylis–Hillman adducts and a simple access to some important insect pheromones

  摘要：

  An efficient one-pot stereoselective synthesis of trisubstituted (E)-2-methylalk-2-enoic acids has been accomplished by treatment of unactivated Baylis-Hillman adducts, 3-hydroxy-2-methylencalkanoates, with Al-NiCl2-6H(2)O in methanol at room temperature followed by hydrolysis. The method has been applied to the synthesis of three important insect pheromones, (4S,2E)-2,4-dimethyl-2-hexenoic acid, (+)-(S)-manicone and (+)-(S)-normanicone. (c) 2006 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2006.07.014

文献信息

• Alkylation of lithium dienediolates of butenoic acids. Regioselectivity effects of structure and leaving group of the alkylating agent
  作者：Maria J. Aurell、Salvador Gil、Ramon Mestres、Margarita Parra、Lilian Parra

  DOI：10.1016/s0040-4020(98)00149-5

  日期：1998.4

  Regioselectivity of alkylation of but-2-enoic acids 1 and 2 by alkyl halides strongly depends on the reactivity of the electrophile. High α selectivity results for saturated alkyl halides, whereas poor α-selectivity is obtained for highly reactive allyl and benzyl halides. For reactive alkylating halides selectivity is partly governed by the ion pairing aggregates of the dienediolates. Lithium bromide

  丁-2-烯酸1和2被烷基卤化物烷基化的区域选择性在很大程度上取决于亲电试剂的反应性。饱和烷基卤化物的α选择性高，而高反应性烯丙基卤和苄基卤的α选择性差。对于反应性烷基化卤化物，选择性部分地由二烯二醇的离子对聚集体决定。正在进行的反应中生成的溴化锂和羧酸盐对区域选择性产生相反的影响。
• [EN] LIGHT HARVESTING ARRAY<br/>[FR] RÉSEAU COLLECTEUR DE LUMIÈRE
  申请人：FLUROSOL IND PTY LTD

  公开号：WO2015024064A1

  公开（公告）日：2015-02-26

  The invention relates to a light harvesting array or dye comprising an acceptor linked to a donor, wherein at least one of the acceptor or the donor is an oligomeric unit comprising a first optionally substituted rylene linked via a linker group to a second optionally substituted rylene, the first optionally substituted rylene is linked to the acceptor or the donor and the second optionally substituted rylene is capable of energy transfer to at least one of the first optionally substituted rylene, the acceptor or the donor. The invention also relates to compounds which may be used as light harvesting arrays, methods for their manufacture, and devices and materials comprising the light harvesting array or dye, for example, chromophoric materials, light guides, photobioreactors, photoluminescent algae systems, photodetectors, photovoltaic devices and luminescent/fluorescent solar concentrators.

  该发明涉及一种光收集阵列或染料，包括一个与给体相连的受体，其中受体或给体中至少有一个是包含第一可选择取代的芳香烃单元通过连接基团连接到第二可选择取代的芳香烃的寡聚单元，第一可选择取代的芳香烃与受体或给体相连，第二可选择取代的芳香烃能够将能量传递至第一可选择取代的芳香烃、受体或给体中的至少一个。该发明还涉及可用作光收集阵列的化合物，其制造方法，以及包括光收集阵列或染料的设备和材料，例如，色素材料、光导管、光生物反应器、光致发光藻类系统、光探测器、光伏器件和发光/荧光太阳能聚光器。
• 3-(2-Acylamino-1-Hydroxyethyl)-Morpholine Derivatives and Their Use as Bace Inhibitors
  申请人：Broughton Barff Howard

  公开号：US20070225267A1

  公开（公告）日：2007-09-27

  The present invention provides BACE inhibitors of Formula (I); methods for their use and preparation, and intermediates useful for their preparation.

  本发明提供了化学式（I）的BACE抑制剂；以及它们的使用和制备方法，以及用于它们制备的中间体。
• Synthesis and biological activity of enantiomeric pairs of 5-vinylthiolactomycin congeners
  作者：Kohei Ohata、Shiro Terashima

  DOI：10.1016/j.bmcl.2007.04.067

  日期：2007.7

  prepared, it appeared evident that in vitro antibacterial and mammalian type I FAS inhibitory activity of thiolactomycin congeners can be cleanly separated by changing not only the structure but also the absolute configuration of the side chain at the C(5)-position. These studies led us to explore (S)-3-demethyl-5-(pent-1-enyl)thiolactomycin derivative [(S)-4-hydroxy-5-methyl-5-(pent-1-enyl)-5H-thiophen-2-one]

  通过使用我们先前探索的用于合成硫菌丝霉素及其3-脱甲基衍生物的对映体对的有效合成路线，合成了十二个5-乙烯基硫基乳酸霉素同系物的对映体对。从使用获得的同源物以及先前制备的对映体对的硫菌霉素及其3-脱甲基衍生物进行的生物活性分析，似乎可以看出，通过不改变不仅是侧链在C（5）位置的结构而且是绝对构型。
• New conditions for the generation of dianions of carboxylic acids
  作者：Eva M. Brun、Isabel Casades、Salvador Gil、Ramón Mestres、Margarita Parra

  DOI：10.1016/s0040-4039(98)01050-8

  日期：1998.7

  Lithium carboxylic acid enediolates are generated efficiently using lithium amides prepared from thienyllithium or butyllithium and either diethylamine, piperazine, N,N′-dibenzylethylenediamine, N-benzylpiperazine or 1,3,3-trimethyl-6-azabicyclo[3.2.1]octane, even in catalytic amounts.

  使用由噻吩基锂或丁基锂与二乙胺，哌嗪，N，N'-二苄基乙二胺，N-苄基哌嗪或1,3,3-三甲基-6-氮杂双环[3.2.1]辛烷制备的酰胺化锂可有效生成羧酸烯二醇锂即使是催化量。