ethyl (Z)-3-(((trifluoromethyl)sulfonyl)oxy)but-2-enoate | 122135-84-6

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 有机磺酸及其衍生物
• 英文名称: ethyl (Z)-3-(((trifluoromethyl)sulfonyl)oxy)but-2-enoate
• 英文别名: 3-(Trifluoromethylsulfonyloxy)crotonic acid ethyl ester；ethyl (Z)-3-(trifluoromethylsulfonyloxy)but-2-enoate
• CAS: 122135-84-6
• 化学式: C₇H₉F₃O₅S
• 分子量: 262.207
• InChiKey: UZGNUZUZYRKGHA-PLNGDYQASA-N

物化性质

• 沸点：
  266.1±40.0 °C(Predicted)
• 密度：
  1.419±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  16
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.57
• 拓扑面积：
  78
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  ethyl (Z)-3-(((trifluoromethyl)sulfonyl)oxy)but-2-enoate 在 四(三苯基膦)钯 、 palladium 10% on activated carbon 、 氢气 作用下， 以 四氢呋喃 、 N,N-二甲基甲酰胺 为溶剂， 20.0~70.0 ℃ 、101.33 kPa 条件下， 反应 15.0h， 生成 3-氰基丁酸乙酯
  参考文献：
  名称：

  Chemoenzymatic Asymmetric Synthesis of Pregabalin Precursors via Asymmetric Bioreduction of β-Cyanoacrylate Esters Using Ene-Reductases

  摘要：

  The asymmetric bioreduction of a library of beta-cyanoacrylate esters using ene-reductases was studied with the aim to provide a biocatalytic route to precursors for GABA analogues, such as pregabalin. The stereochemical outcome could be controlled by substrate-engineering through size-variation of the ester moiety and by employing stereochemically pure (E)- or (Z)-isomers, which allowed to access both enantiomers of each product in up to quantitative conversion in enantiomerically pure form. In addition, stereoselectivities and conversions could be improved by mutant variants of OPR1, and the utility of the system was demonstrated by preparative-scale applications.

  DOI：

  10.1021/jo302484p
• 作为产物：
  描述：

  乙酰乙酸乙酯钠 、 2-[N,正双(三氟甲烷烷磺酰)氨基]-5-氯吡啶 在 双(三甲基硅烷基)氨基钾 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 12.08h， 以61%的产率得到ethyl (Z)-3-(((trifluoromethyl)sulfonyl)oxy)but-2-enoate
  参考文献：
  名称：

  WO2006/99313

  摘要：

  公开号：

文献信息

• Direct synthesis of γ-pyrones by electrophilic condensation of β-ketoesters
  作者：Catarina A. B. Rodrigues、Antonio Misale、Florian Schiel、Nuno Maulide

  DOI：10.1039/c6ob01884j

  日期：——

  Triflic anhydride is a versatile electrophile that is able to activate poor nucleophiles. Herein, we show that readily available β-keto esters are activated by Tf2O furnishing γ-pyrones. Mechanistic studies suggest that this transformation proceeds via a double triflation, formation of an oxocarbenium intermediate and dealkylation promoted by a crucial nitrile additive.

  三氟甲磺酸酐是一种通用的亲电试剂，能够活化较差的亲核试剂。在本文中，我们表明，容易获得的β-酮酸酯通过提供γ-吡喃酮的Tf 2 O活化。机理研究表明，这种转变是通过双重三氟甲磺酸酯化，氧羰基中间体的形成以及关键的腈类添加剂促进的脱烷基而进行的。
• Palladium-Catalyzed Synthesis of <i>N</i>-Vinyl Pyrroles and Indoles
  作者：Mohammad Movassaghi、Alison E. Ondrus

  DOI：10.1021/jo051450i

  日期：2005.10.1

  azaheterocycles with vinyl triflates is described. Cyclic and acyclic vinyl triflates along with nonnucleophilic azaheterocycles were found to be substrates for this palladium-catalyzed synthesis of N-vinyl pyrrole and indole derivatives.

  描述了具有乙烯基三氟甲磺酸酯的氮杂杂环的立体有规钯催化的N-乙烯基化。发现环状和无环乙烯基三氟甲磺酸酯以及非亲核氮杂杂环是该钯催化的N-乙烯基吡咯和吲哚衍生物的合成的底物。
• [EN] LYMPH DIRECTING PRODRUGS<br/>[FR] PROMÉDICAMENTS DE TRANSPORT VERS LE SYSTÈME LYMPHATIQUE
  申请人：UNIV MONASH

  公开号：WO2016023082A1

  公开（公告）日：2016-02-18

  H:\dar\Interwoven\NRPortbl\DCC\DAR\8230712_1.doc-12/08/2015 Abstract The present invention relates to compounds and their uses, in particular, compounds in the form of prodrugs that promote transport of a pharmaceutical agent to the lymphatic system and subsequently enhance release of the parent drug.

  这项发明涉及化合物及其用途，特别是以前药物形式存在的促进药物运输至淋巴系统并随后增强母药释放的前药化合物。
• Synthesis of all-E- and 9Z-Heteroaryl-retinoic Acid Applying Palladium Catalyzed Coupling Reaction of (Arylvinyl)tributyl Stannane with Vinyl Triflate
  作者：Akimori Wada、Govindarajuru Babu、Sayaka Shimomoto、Masayoshi Ito

  DOI：10.1055/s-2001-18104

  日期：——

  Palladium catalyzed cross coupling reactions of (arylvinyl)tributyl stannanes with vinyl triflates resulted in the production of stereochemically pure trisubstituted E- and Z-olefins in very good yields. These olefins were transformed to the corresponding all-E- and 9Z-heteroaryl-retinoic acid analogs via Horner-Emmons reaction and subsequent basic hydrolysis in excellent yields.

  钯催化的(芳基乙烯基)三丁基锡与乙烯基三氟甲磺酸酯的交叉耦合反应，以优异的产率生成了立体化学纯的E-和Z-三取代烯烃。这些烯烃通过Horner-Emmons反应和随后的碱性水解，以出色的产率转化为相应的全E-和9Z-杂芳基维甲酸类似物。
• Selective Iron-Catalyzed Cross-Coupling Reactions of Grignard Reagents with Enol Triflates, Acid Chlorides, and Dichloroarenes
  作者：Bodo Scheiper、Melanie Bonnekessel、Helga Krause、Alois Fürstner

  DOI：10.1021/jo0498866

  日期：2004.5.1

  Cheap, readily available, air stable, nontoxic, and environmentally benign iron salts such as Fe(acac)3 are excellent precatalysts for the cross-coupling of Grignard reagents with alkenyl triflates and acid chlorides. Moreover, it is shown that dichloroarene and -heteroarene derivatives as the substrates can be selectively monoalkylated by this method. All cross-coupling reactions proceed very rapidly

  廉价，容易获得，空气稳定，无毒且对环境无害的铁盐，例如Fe（acac）3是格氏试剂与链烯基三氟甲磺酸酯和酰氯交叉偶联的出色的预催化剂。此外，显示出通过该方法可以将作为底物的二氯亚芳基和-杂亚芳基衍生物选择性地单烷基化。所有交叉偶联反应在特别温和的条件下均能非常快速地进行，结果证明与两个反应伙伴中的各种官能团均相容。对制备结果的详细分析表明，铁催化的碳键形成可以通过不同的途径发生。因此，甲基卤化镁的反应可能包含铁酸盐配合物作为活性成分，而格氏试剂与两个或多个碳原子的反应则受到形式组成[Fe（MgX）2 ]的高度还原的铁簇的影响。n原位生成。使用复杂的[Me 4 Fe] Li 2的对照实验证实了这一解释。