(+)-2-Ethyl-2,3-pentadiensaeure | 57470-20-9

• 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-Ethyl-2,3-pentadiensaeure
• 英文别名: 2-ethylpenta-2,3-dienoic acid
• CAS: 57470-20-9
• 化学式: C₇H₁₀O₂
• 分子量: 126.155
• InChiKey: UNUGKTJBYDWWJG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.58
• 重原子数：
  9.0
• 可旋转键数：
  2.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  37.3
• 氢给体数：
  1.0
• 氢受体数：
  1.0

反应信息

• 作为产物：
  描述：

  racem. 2-Ethyl-2,3-pentadiensaeure-ethylester 生成 (+)-2-Ethyl-2,3-pentadiensaeure
  参考文献：
  名称：

  Runge,W. et al., Justus Liebigs Annalen der Chemie, 1975, p. 1361 - 1378

  摘要：

  DOI：

文献信息

• Asymmetric Olefin Isomerization of Butenolides via Proton Transfer Catalysis by an Organic Molecule
  作者：Yongwei Wu、Ravi P. Singh、Li Deng

  DOI：10.1021/ja205674x

  日期：2011.8.17

  general olefin isomerization was realized via biomimetic proton transfer catalysis with a new chiral organic catalyst. A broad range of mono- and disubstituted β,γ-unsaturated butenolides were transformed into the corresponding chiral α,β-unsaturated butenolides in high enantioselectivity and yield in the presence of as low as 0.5 mol % catalyst. Mechanistic studies have revealed the protonation as the

  通过使用新型手性有机催化剂的仿生质子转移催化，实现了前所未有的对映选择性和通用烯烃异构化。在低至 0.5 mol% 的催化剂存在下，多种单取代和双取代的 β,γ-不饱和丁烯内酯以高对映选择性和产率转化为相应的手性 α,β-不饱和丁烯内酯。机理研究表明质子化是决定速率的步骤。
• [EN] ACETATE SALT OF BUPRENORPHINE AND METHODS FOR PREPARING BUPRENORPHINE<br/>[FR] SEL D'ACÉTATE DE BRUPRÉNORPHINE ET PROCÉDÉS POUR LA PRÉPARATION DE BRUPRÉNORPHINE
  申请人：RHODES TECH

  公开号：WO2016142877A1

  公开（公告）日：2016-09-15

  The present disclosure provides acetate salts of buprenorphine, and its anhydrates, solvates, hydrates, and crystalline forms thereof, where the acetate salts of buprenorphine are essentially free of impurities. The disclosure further provides method of preparing the acetate salts, buprenorphine free base prepared from the acetate salts, other salts prepared from the free base, and pharmaceutical compositions thereof essentially free of impurities.

  本公开提供丁酸盐的布洛芬啡，以及其无水物、溶剂物、水合物和晶体形式，其中丁酸盐的布洛芬啡基本上不含杂质。本公开进一步提供制备丁酸盐的方法，从丁酸盐制备的布洛芬啡自由基，从自由基制备的其他盐以及基本上不含杂质的制药组合物。
• Resin composition and multi-layer structures
  申请人：Tai Shinji

  公开号：US20050147778A1

  公开（公告）日：2005-07-07

  Provided is a resin composition comprising 1-99% by weight of a modified ethylene-vinyl alcohol copolymer (C) having an ethylene content of 5-55 mol %, which contains a specific structural unit (I) in an amount of 0.3-40 mol % and can be obtained by reacting an ethylene-vinyl alcohol copolymer (A) with a monofunctional epoxy compound (B) having a molecular weight of not more than 500, and 1-99% by weight of a thermoplastic resin (T 1 ) other than (C). Moreover, a multilayer structure in which the resin composition and a thermoplastic resin (T 2 ) are laminated is also provided. Thus, a resin composition superior in barrier properties, transparency, stretchability, flexibility, flexing resistance and interlayer adhesiveness and various kinds of molded articles made thereof are provided.

  本发明提供了一种树脂组合物，包括重量百分比为1-99%的改性乙烯-醇酸共聚物(C)，该共聚物的乙烯含量为5-55摩尔％，其中含有特定的结构单元(I)，其含量为0.3-40摩尔％，可以通过将乙烯-醇酸共聚物(A)与分子量不超过500的单官能环氧化合物(B)反应而获得，以及重量百分比为1-99%的热塑性树脂(T1)，该树脂组合物和热塑性树脂(T2)层压形成多层结构。因此，提供了一种优异的阻隔性、透明性、可拉伸性、柔韧性、耐弯曲性和层间粘附性的树脂组合物及其各种成型制品。
• COMPOSITIONS OF 5-HT3 ANTAGONISTS AND DOPAMINE D2 ANTAGONISTS FOR TREATMENT OF DOPAMINE-ASSOCIATED CHRONIC CONDITIONS
  申请人：SINGH NIKHILESH N.

  公开号：US20110112116A1

  公开（公告）日：2011-05-12

  Methods are provided for partial aortic obstruction for cerebral perfusion augmentation in patients suffering from global or focal cerebral ischemia. Alternatively, the methods can be used to partially obstruct aortic blood flow to condition the spinal cord to secrete neuroprotective agents prior to abdominal aortic aneurysm repair. Partial obstruction of a vessel can be accomplished by a device comprising an elongate catheter and a distally mounted expandable member. The expandable member may comprise one or two balloons. Other medical devices, such as an angioplasty, stent, or atherectomy catheter, can be inserted distal the expandable member to provide therapeutic intervention.

  提供了一种用于在全脑或局部脑缺血患者中增加脑灌注的部分主动脉阻塞方法。或者，该方法可以用于部分阻塞主动脉血流，以在腹主动脉瘤修复前使脊髓分泌神经保护剂。通过包括长型导管和远端安装的可膨胀部件的装置，可以实现对血管的部分阻塞。可膨胀部件可以包括一个或两个气球。其他医疗器械，如血管成形术、支架或动脉切割导管，可以插入可膨胀部件的远端，以提供治疗干预。
• SHEET FOR SOLAR CELL, AND SOLAR CELL MODULE
  申请人：Miyashita Yo

  公开号：US20120097220A1

  公开（公告）日：2012-04-26

  Provided are a sheet for a solar cell of a monolayer construction or a multilayer construction based on a polyphenylene ether-based resin layer formed of a resin composition using a polyphenylene ether as a main component, which has excellent durability, excellent flame retardancy, excellent dimensional stability and high adhesiveness with a encapsulating resin layer or the like, and a solar cell module obtained by providing the sheet for a solar cell.

  提供的是一种基于聚苯乙醚为主要成分的树脂组成物形成的单层结构或多层结构的太阳能电池片的材料，该材料具有优异的耐久性、优异的阻燃性、优异的尺寸稳定性和高粘附性，能够与封装树脂层等紧密结合，以及通过提供该太阳能电池片材料获得的太阳能电池模块。