2-(三氟甲基)丁酸乙酯 | 90784-38-6

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 中文名称: 2-(三氟甲基)丁酸乙酯
• 英文名称: ethyl (2-trifluoromethyl)butanoate
• 英文别名: ethyl 2-(trifluoromethyl)butanoate；ethyl 2-(trifluoromethyl)butyrate
• CAS: 90784-38-6；146231-42-7
• 化学式: C₇H₁₁F₃O₂
• 分子量: 184.158
• InChiKey: PZBFWLHXZOLQTQ-UHFFFAOYSA-N

物化性质

• 沸点：
  145.2±35.0 °C(Predicted)
• 密度：
  1.120±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  12
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  2-(三氟甲基)丁酸乙酯 反应 5.0h， 生成 (-)-allyl 1-(trifluoromethyl)propyl ketone
  参考文献：
  名称：

  对映体富集的α-三氟甲基化酸，酯和酮的合成

  摘要：

  通过酶水解获得了具有高光学纯度的α-三氟甲基化的羧酸。此外，描述了通过由格氏试剂与光学纯的α-三氟甲基化的羧酸乙酯的反应产生的二烯丙基醇的热分解来合成光学活性的α-三氟甲基化的酮。

  DOI：

  10.1016/s0022-1139(00)82417-3
• 作为产物：
  描述：

  monoethyl DL-ethyl-malonate 在 sulfur tetrafluoride 、 水 作用下， 反应 24.0h， 以62%的产率得到2-(三氟甲基)丁酸乙酯
  参考文献：
  名称：

  脂肪族羧酸的脱氧氟化：一条通往三氟甲基取代衍生物的途径。

  摘要：

  开发了一种由脂族酸合成官能化脂族三氟甲基取代衍生物的实用方法。在有水作为关键添加剂的情况下，用四氟化硫进行转化。与以前的方法相比，该反应使产物完全保留了手性中心的立体构型和绝对构型。

  DOI：

  10.1021/acs.joc.9b02596

文献信息

• Preparation of esters containing an β-CF3 group
  作者：Suzanne T. Purrington、T. Stephen Everett、Carl L. Bumgardner

  DOI：10.1016/s0040-4039(01)80149-0

  日期：1984.1

  Malonates may be converted to esters containing an δ-CF3 group in a two-step process involving bromodifluoromethylation of the malonates followed by decarboxyalkylation-fluorination with fluoride ion in DMSO.

  丙二酸酯可以在两步法中转化为含有δ-CF3基团的酯，该过程涉及丙二酸酯的溴二氟甲基化，然后在DMSO中用氟离子进行脱羧烷基化-氟化。
• TRIFLUOROMETHYLTHIOPHENIUM DERIVATIVE SALT, METHOD FOR PRODUCING THE SAME, AND METHOD FOR PRODUCING TRIFLUOROMETHYL-CONTAINING COMPOUNDS USING THE SAME
  申请人：Shibata Norio

  公开号：US20120130090A1

  公开（公告）日：2012-05-24

  A trifluoromethylthiophenium derivative salt useful as synthetic intermediates for pharmaceuticals and agrochemicals, a method for producing the same, and a method for producing trifluoromethyl-containing compounds using the same are provided. An S-(trifluoromethyl)-benzo[b]thiophenium derivative salt is represented by the following general formula (1): wherein R 1 , R 2 , R 3 , and R 4 are each independently a hydrogen atom, a methyl group, an ethyl group, a linear, branched, or cyclic alkyl group having 3 to 10 carbon atoms, a methoxy group, an ethoxy group, a linear, branched, or cyclic alkyloxy group having 3 to 10 carbon atoms, a fluorine atom, a chlorine atom, a bromine atom, a nitro group, or a cyano group, R 5 is a methyl group, an ethyl group, a linear, branched, or cyclic alkyl group having 3 to 10 carbon atoms, a phenyl group, or a substituted phenyl group, and X − represents an anion. Various trifluoromethyl-containing compounds are produced using a method for producing the S-(trifluoromethyl)-benzo[b]thiophenium derivative salt, and using the S-(trifluoromethyl)-benzo[b]thiophenium derivative salt as a trifluoromethylating agent.

  本发明提供一种三氟甲基噻吩盐衍生物，可用作制药和农药的合成中间体，以及其制备方法和使用该盐衍生物制备含三氟甲基化合物的方法。S-(三氟甲基)-苯并[b]噻吩盐衍生物由下列普通式（1）表示：其中，R1、R2、R3和R4各自独立地是氢原子、甲基基团、乙基基团、具有3至10个碳原子的线性、支链或环烷基基团、甲氧基基团、乙氧基基团、具有3至10个碳原子的线性、支链或环烷氧基基团、氟原子、氯原子、溴原子、硝基或氰基，R5是甲基基团、乙基基团、具有3至10个碳原子的线性、支链或环烷基基团、苯基或取代苯基，X-表示阴离子。使用制备S-(三氟甲基)-苯并[b]噻吩盐衍生物的方法以及使用S-(三氟甲基)-苯并[b]噻吩盐衍生物作为三氟甲基化试剂可以制备各种三氟甲基含量的化合物。
• TRIFLUOROMETHYLTHIOPHENIUM DERIVATIVE SALTS, PROCESS FOR PRODUCITON THEREOF, AND PROCESS FOR PRODUCTION OF TRIFLUOROMETHYL-CONTAINING COMPOUNDS USING SAME
  申请人：Nagoya Institute of Technology

  公开号：EP2460802A1

  公开（公告）日：2012-06-06

  A trifluoromethylthiophenium derivative salt useful as synthetic intermediates for pharmaceuticals and agrochemicals, a method for producing the same, and a method for producing trifluoromethyl-containing compounds using the same are provided. An S-(trifluoromethyl)-benzo[b]thiophenium derivative salt is represented by the following general formula (1): wherein R1, R2, R3, and R4 are each independently a hydrogen atom, a methyl group, an ethyl group, a linear, branched, or cyclic alkyl group having 3 to 10 carbon atoms, a methoxy group, an ethoxy group, a linear, branched, or cyclic alkyloxy group having 3 to 10 carbon atoms, a fluorine atom, a chlorine atom, a bromine atom, a nitro group, or a cyano group, R5 is a methyl group, an ethyl group, a linear, branched, or cyclic alkyl group having 3 to 10 carbon atoms, a phenyl group, or a substituted phenyl group, and X- represents an anion. Various trifluoromethyl-containing compounds are produced using a method for producing the S-(trifluoromethyl)-benzo[b]thiophenium derivative salt, and using the S-(trifluoromethyl)-benzo[b]thiophenium derivative salt as a trifluoromethylating agent.

  本发明提供了一种可用作医药和农用化学品合成中间体的三氟甲基噻吩衍生物盐、生产该衍生物盐的方法以及使用该衍生物盐生产含三氟甲基化合物的方法。一种 S-(三氟甲基)-苯并[b]噻吩衍生物盐由以下通式(1)表示： 其中 R1、R2、R3 和 R4 各自独立地为氢原子、甲基、乙基、具有 3 至 10 个碳原子的直链、支链或环状烷基、甲氧基、乙氧基、具有 3 至 10 个碳原子的直链、支链或环状烷氧基、氟原子、氯原子、溴原子、硝基或氰基，R5 是甲基、乙基、具有 3 至 10 个碳原子的直链、支链或环状烷基、苯基或取代苯基，X- 代表阴离子。使用生产 S-(三氟甲基)-苯并[b]噻吩衍生物盐的方法，并使用 S-(三氟甲基)-苯并[b]噻吩衍生物盐作为三氟甲基化剂，可生产出各种含三氟甲基的化合物。
• Preparation of .alpha.-trifluoromethyl esters from malonic esters
  作者：T. Stephen Everett、Suzanne T. Purrington、Carl L. Bumgardner

  DOI：10.1021/jo00194a006

  日期：1984.10
• Synthesis, Structure-Activity Relationships, and Pharmacological Evaluation of a Series of Fluorinated 3-Benzyl-5-Indolecarboxamides: Identification of 4-[[5-[((2R)-2-Methyl-4,4,4-trifluorobutyl)carbamoyl]-1-methylindol-3-yl]methyl]-3methoxy-N-[(2-methylphenyl)sulfonyl]benzamide, a Potent, Orally Active Antagonist of Leukotrienes D4 and E4
  作者：Robert T. Jacobs、Peter R. Bernstein、Laura A. Cronk、Edward P. Vacek、Lisa F. Newcomb、David Aharony、Carl K. Buckner、Edward J. Kusner

  DOI：10.1021/jm00035a008

  日期：1994.4

  The continued exploration of a series of 3-(arylmethyl)-1H-indole-5-carboxamides by the introduction of fluorinated amide substituents has resulted in the discovery of 4-[[5-[((2R)-2-methyl-4,4,4-trifluorobutyl)carbamoyl]-1-methylindol-3-yl]methyl]-3-methoxy-N-[(2-methylphenyl)sulfonyl]benzamide (38p, ZENECA ZD 3523),which has been chosen for clinical evaluation. This compound exhibited a K-i of 0.42 nM for displacement of [H-3]LTD(4) on guinea pig lung membranes, a pK(B) Of 10.13 +/- 0.14 versus LTE(4) on guinea pig trachea, and an oral ED(50) Of 1.14 mu mol/kg opposite LTD(4)-induced bronchoconstriction in guinea pigs. The R enantiomer was found to be modestly more potent than the S enantiomer 38o. Modification of the amide substituent to afford achiral compounds was unsuccessful in achieving comparable levels of activity. Profiling of 38p opposite a variety of functional assays has demonstrated the selectivity of this compound as a leukotriene receptor antagonist. The enantioselective synthesis of 38p, which employed a diastereoselective alkylation of (4R,5S)-3-(1-oxo-4,4,4-trifluorobutyl)-4-methyl-5-phenyl-2-oxazolidinone (27) as the key step to establish the chirality of the amide substituent, provided an efficient route for generating 38p in >99% enantiomeric purity.