2,4-Dimethyl-2-hexenoic acid | 40712-18-3

• 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: 2,4-Dimethyl-2-hexenoic acid
• 英文别名: 2,4-Dimethylhex-2-enoic acid
• CAS: 40712-18-3
• 化学式: C₈H₁₄O₂
• 分子量: 142.198
• InChiKey: DCELYZLYGOHVMN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  10
• 可旋转键数：
  3
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.62
• 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：

  2,4-Dimethyl-2-hexenoic acid 在 氯化亚砜 作用下， 以 乙醚 、 苯 为溶剂， 反应 2.25h， 生成 (E)-4,6-dimethyloct-4-en-3-one
  参考文献：
  名称：

  A Simple and Efficient Route to 2-Alkyl-2-alkenoic Acids and 2-Phenyl-2-Alkenoic Acids by the Horner Synthesis. Application to the Stereoselective Synthesis of the Pheromone Manicone

  摘要：

  DOI：

  10.1055/s-1986-31784

文献信息

• EUROPIUM COMPLEX
  申请人：TOSOH CORPORATION

  公开号：US20200354389A1

  公开（公告）日：2020-11-12

  To provide europium complexes having high photostability. A europium complex expressed with the following formula (A): wherein, R A and R B are independently a cyclic alkyl group with 3 to 10 carbons, respectively, and R C is a cyclic alkyl group with 3 to 10 carbons or a phenyl group expressed with the following formula (B): (wherein, X A , X B , A C , X D and X E independently represent a hydrogen atom; a fluorine atom; an alkyl group with 1 to 3 carbon(s); an alkyloxy group with 1 to 3 carbon(s); an aryloxy group with 6 to 10 carbons; a fluoroalkyl group with 1 to 3 carbon(s); a fluoroalkyloxy group with 1 to 3 carbon(s); or a phenyl group that may be substituted with a fluorine atom, an alkyl group with 1 to 3 carbon(s), an alkyloxy group with 1 to 3 carbon(s), a fluoroalkyl group with 1 to 3 carbon(s), a fluoroalkyloxy group with 1 to 3 carbon(s), a fluorophenyl group, a hydroxyl group or a cyano group, respectively); R A is a cyclic alkyl group with 3 to 10 carbons; R B and R C are a phenyl group expressed with the formula (B), provided, however, that a case where R A a cyclohexyl group, and, R B and R C are a phenyl group is excluded; or R A , R B and R C independently represent an ortho-substituted phenyl group expressed with the following formula (Ba): (wherein, X E represents a hydrogen atom, an alkyl group with 1 to 3 carbon(s), an alkyloxy group with 1 to 3 carbon(s), a fluoroalkyl group with 1 to 3 carbon(s), a fluoroalkyloxy group with 1 to 3 carbon(s), a naphthyl group that may be substituted with a fluorine atom, a pyridyl group that may be substituted with a fluorine atom, or a phenyl group that is expressed with a formula (C): [wherein, Z A , Z C and Z E independently represent a hydrogen atom, a fluorine atom, an alkyl group with 1 to 3 carbon(s), an alkyloxy group with 1 to 3 carbon(s), a fluoroalkyl group with 1 to 3 carbon(s), a fluoroalkyloxy group with 1 to 3 carbon(s), a phenyl group that may be substituted with a fluorine atom, a hydroxyl group or a cyano group; Z B and Z D independently represent a hydrogen atom or a fluorine atom, respectively], provided, however, that a case where R A , R B and R C are all a phenyl group is excluded), respectively; R D represents a hydrogen atom, a deuterium atom or a fluorine atom; W A and W B independently represent an alkyl group with 1 to 6 carbon(s), a fluoroalkyl group with 1 to 6 carbon(s), a phenyl group, a 2-thienyl group or a 3-thienyl group; and ‘n’ represents an integer of 1 to 3}.

  提供具有高光稳定性的铕配合物。 以下是用以下公式（A）表示的铕配合物： 其中，R A 和R B 分别独立地是具有3至10个碳原子的环烷基基团，而R C 是具有3至10个碳原子的环烷基基团或用以下公式（B）表示的苯基团： （其中，X A 、X B 、A C 、X D 和X E 独立地代表氢原子；氟原子；具有1至3个碳原子的烷基基团；具有1至3个碳原子的烷氧基团；具有6至10个碳原子的芳基氧基团；具有1至3个碳原子的氟烷基基团；具有1至3个碳原子的氟烷氧基团；或者可能被氟原子、具有1至3个碳原子的烷基基团、具有1至3个碳原子的烷氧基团、具有1至3个碳原子的氟烷基基团、具有1至3个碳原子的氟烷氧基团、氟苯基团、羟基或氰基取代的苯基团，分别）； R A 是具有3至10个碳原子的环烷基基团； R B 和R C 是用公式（B）表示的苯基团，但是，排除R A 为环己基团，且R B 和R C 为苯基团的情况；或者 R A ，R B 和R C 独立地表示用以下公式（Ba）表示的邻位取代的苯基团： （其中，X E 代表氢原子、具有1至3个碳原子的烷基基团、具有1至3个碳原子的烷氧基团、具有1至3个碳原子的氟烷基基团、具有1至3个碳原子的氟烷氧基团、可能被氟原子取代的萘基团、可能被氟原子取代的吡啶基团，或者用以下公式（C）表示的苯基团： [其中，Z A 、Z C 和Z E 独立地代表氢原子、氟原子、具有1至3个碳原子的烷基基团、具有1至3个碳原子的烷氧基团、具有1至3个碳原子的氟烷基基团、具有1至3个碳原子的氟烷氧基团、可能被氟原子取代的苯基团、羟基或氰基；Z B 和Z D 独立地代表氢原子或氟原子，但排除R A ，R B 和R C 都是苯基团的情况），分别；R D 代表氢原子、氘原子或氟原子；W A 和W B 独立地表示具有1至6个碳原子的烷基基团、具有1至6个碳原子的氟烷基基团、苯基、2-噻吩基团或3-噻吩基团；‘n’表示1至3的整数。
• [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。
• Substrate selectivity of an isolated enoyl reductase catalytic domain from an iterative highly reducing fungal polyketide synthase reveals key components of programming
  作者：Douglas M. Roberts、Christoph Bartel、Alan Scott、David Ivison、Thomas J. Simpson、Russell J. Cox

  DOI：10.1039/c6sc03496a

  日期：——

  A cis-acting enoyl reductase (ER) catalytic domain was isolated from a fungal highly reducing iterative polyketide synthase (HR-iPKS) for the first time and studied in vitro. The ER from the squalestatin tetraketide synthase forms a discrete dimeric protein in solution. The ER shows broad substrate selectivity, reducing enoyl species including both natural and unnatural substrates. Pantetheine-bound

  首次从真菌高还原性重复聚酮合酶(HR-iPKS)中分离出顺式烯酰还原酶(ER)催化结构域并进行体外研究。来自角鲨他汀四酮化合物合酶的 ER 在溶液中形成离散的二聚体蛋白质。ER 显示出广泛的底物选择性，可减少烯酰基物质，包括天然和非天然底物。泛硫氨酸结合底物硫醇酯的反应速度比相应的 SNAC 硫醇酯快得多。非天然底物包括Z-烯烃、2-乙基烯烃和五肽。底物的甲基化改变了 ER 的活性，使得 2,4-二甲基辛-2-烯酰基底物适合活性位点但不能被还原。开发了一种新的基于 NMR 的测定法，用于直接观察 NADPH 辅因子 4' 位置以及底物 C-2 和 C-3 位置的立体化学偏好。该测定表明，真菌 iPKS ER 催化的反应在立体化学上与脊椎动物 FAS (vFAS) 在辅因子 4' 位和底物 3 位的反应相同，但完整 SQTKS 所表现出的高立体选择性消失，导致在2 位对分离的 ER 没有选择性。ER
• COMPOUND AND POLYMER COMPOUND CONTAINING THE COMPOUND
  申请人：JAPAN SCIENCE AND TECHNOLOGY AGENCY

  公开号：US20210002284A1

  公开（公告）日：2021-01-07

  Provided is a compound having higher fluorescence quantum yield and higher optical stability than a conventional FLAP and a polymer compound containing the compound. A: seven or eight-membered ring structure, Y 1 ,Y 2 ,Y 3 : halogen atom or the like, a1: number of Y 1 , a2: number of Y 2 , B: number of Y 3 , 0≤m and n≤3: when 1≤m≤3, Y 1 may be substituted with a structure portion defined by m, when 1≤n≤3, Y 2 may be substituted with a structure portion defined by n, and B 1 , B 2 : Formulas (2-1) to (2-3). C 1 , C 2 , C 3 : structure containing a cyclic hydrocarbon compound, D 1 , D 2 , D 3 : substructure that inhibits aggregation, E 1 , E 2 , E 3 : polymerizable substructure, Z 1 : hydrogen atom or the like, c: number of substituent groups Z 1 , Z 2 , Z 3 : hydrogen atom or the like, and may form a ring with C 2 .

  提供了一种具有比传统FLAP具有更高荧光量子产率和更高光学稳定性的化合物，以及含有该化合物的聚合物化合物。A：七元或八元环结构，Y1，Y2，Y3：卤素原子或类似物，a1：Y1的数量，a2：Y2的数量，B：Y3的数量，0≤m和n≤3：当1≤m≤3时，Y1可能被定义为m的结构部分替代，当1≤n≤3时，Y2可能被定义为n的结构部分替代，B1，B2：公式（2-1）至（2-3）。C1，C2，C3：含有环烃化合物的结构，D1，D2，D3：抑制聚集的亚结构，E1，E2，E3：可聚合的亚结构，Z1：氢原子或类似物，c：取代基Z1的数量，Z2，Z3：氢原子或类似物，可能与C2形成环。
• [EN] PHOTOPERIODIC CONTROL OF PHYTOCHROME WITH MATERIALS<br/>[FR] CONTRÔLE PHOTOPÉRIODIQUE DE PHYTOCHROME AVEC DES MATÉRIAUX
  申请人：LLEAF PTY LTD

  公开号：WO2020163917A1

  公开（公告）日：2020-08-20

  Disclosed herein are articles and devices, such as photo-selective films, which may be used to influence the growth of photosynthetic organisms. These article and devices may comprise one or more compounds of Formula (I) and/or Formula (II), along with one or more optional auxiliary dyes. Methods of controlling the growth of plants and for the manufacture of said articles and devices are also disclosed herein.

  本文披露了一些文章和设备，例如光选择性薄膜，可用于影响光合生物的生长。这些文章和设备可能包括一个或多个Formula（I）和/或Formula（II）的化合物，以及一个或多个可选的辅助染料。本文还披露了控制植物生长的方法以及用于制造上述文章和设备的方法。