ethyl 2,2-difluorooctanoate | 111934-95-3

• 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: ethyl 2,2-difluorooctanoate
• CAS: 111934-95-3
• 化学式: C₁₀H₁₈F₂O₂
• 分子量: 208.249
• InChiKey: WHNDVBKXJCHZAY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4
• 重原子数：
  14
• 可旋转键数：
  8
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.9
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  ethyl 2,2-difluorooctanoate 在 吡啶 、 盐酸 、 sodium tetrahydroborate 、 叔丁基锂 、 dipyridine chromium trioxide 作用下， 以 四氢呋喃 、 乙醚 、 乙醇 、 二氯甲烷 、 氯仿 为溶剂， 反应 1.45h， 生成 octanoic acid, (+/-)-5,5-difluoro-4-oxo-2-<<oxy>methyl>undecyl ester
  参考文献：
  名称：

  作为眼镜蛇毒磷脂酶 A2 抑制剂的磷脂类似物的合成和评价

  摘要：

  Synthese d'analogues de phosphatidylcholine ou le groupe situen en 2 est remplace par des oxo-2alkane ou des hydroxy-2烷基

  DOI：

  10.1021/ja00260a020
• 作为产物：
  描述：

  2-氧代辛酸乙酯 在 二乙胺基三氟化硫 作用下， 以 二氯甲烷 为溶剂， 反应 1.0h， 以73%的产率得到ethyl 2,2-difluorooctanoate
  参考文献：
  名称：

  作为眼镜蛇毒磷脂酶 A2 抑制剂的磷脂类似物的合成和评价

  摘要：

  Synthese d'analogues de phosphatidylcholine ou le groupe situen en 2 est remplace par des oxo-2alkane ou des hydroxy-2烷基

  DOI：

  10.1021/ja00260a020

文献信息

• METHOD FOR PRODUCING FLUORINATED COMPOUND
  申请人：DAIKIN INDUSTRIES, LTD.

  公开号：US20190071376A1

  公开（公告）日：2019-03-07

  This invention solves the problem of providing an efficient, new method for producing a fluoromethylene-containing compound. The problem can be solved by a method for producing a compound represented by formula (1) or a ring-closed or ring-opened derivative of the compound, wherein R 1 represents an organic group, R X represents hydrogen or fluorine, R 2a , R 2b , R 2c , and R 2d are the same or different, and each represents —Y—R 21 or —N(—R 22 ) 2 , or R 2b and R 2c may join together to form a bond, wherein Y represents a bond, oxygen, or sulfur, R 21 represents hydrogen or an organic group, and R 22 , in each occurrence, is the same or different and represents hydrogen or an organic group; the method comprising step A of reacting a compound represented by formula (2), wherein X represents a leaving group, and other symbols are as defined above, with a compound represented by formula (3), wherein the symbols are as defined above, in the presence of a reducing agent under light irradiation.

  这项发明解决了提供一种用于生产含氟甲烯基化合物的高效新方法的问题。该问题可通过一种用于生产由化学式（1）表示的化合物或该化合物的环闭合或环开放衍生物的方法来解决，其中R1代表有机基团，RX代表氢或氟，R2a、R2b、R2c和R2d相同或不同，每个代表—Y—R21或—N(—R22)2，或者R2b和R2c可以结合形成键，其中Y代表键、氧或硫，R21代表氢或有机基团，每次出现的R22相同或不同，代表氢或有机基团；该方法包括以下步骤：A. 在光照射下，在存在还原剂的条件下，使化学式（2）表示的化合物与化学式（3）表示的化合物发生反应。
• Studies toward the oxidative and reductive activation of C–S bonds in 2′-S-aryl-2ʹ-thiouridine derivatives
  作者：Ramanjaneyulu Rayala、Alain Giuglio-Tonolo、Julie Broggi、Thierry Terme、Patrice Vanelle、Patricia Theard、Maurice Médebielle、Stanislaw F. Wnuk

  DOI：10.1016/j.tet.2016.02.063

  日期：2016.4

  Studies directed toward the oxidative and reductive desulfurization of readily available 2'-S-aryl-2'-thiouridine derivatives were investigated with the prospect to functionalize the C2'-position of nucleosides. The oxidative desulfurization-difluorination strategy was successful on 2-(arylthio)alkanoate surrogates, while extension of the combination of oxidants and fluoride sources was not an efficient

  针对易于获得的2'-S-芳基-2'-硫代尿苷衍生物的氧化和还原脱硫的研究进行了研究，具有使核苷的C2'-位官能化的前景。氧化脱硫-二氟化策略在2-（芳硫基）链烷酸酯替代物上是成功的，而氧化剂和氟化物源组合的扩展当应用于2'-S-芳基-2'-硫代尿苷衍生物时不是有效的氟化方案，因此主要发生在嘧啶环的C5-卤代反应和C2'-单氟化而不脱硫的过程中。2'-芳基磺酰基-2'-脱氧尿苷及其2'-氟化类似物的循环伏安法显示，尽管在相对较高的阴极电位下，仍可能发生芳基砜部分的裂解。2'-芳基磺酰基-2'-脱氧尿苷与有机电子给体（OED）的还原-脱磺酰化主要产生碱诱导的呋喃类产物，而α-氟砜衍生物的化学（OED）和电化学还原-脱磺酰化产生2'-脱氧2'-氟尿苷和2'，3'-二氢-2'，3'-二脱氧2'-氟尿苷衍生物。这些结果提供了通过碳-硫键裂解产生C2'-阴离子的良好证据，为核苷中的还原功能化方法开辟了
• Nickel-catalyzed reaction of iododifluoroacetates with alkenes and zinc: a novel and practical route to .alpha.,.alpha.-difluoro-functionalized esters and .alpha.,.alpha.,.omega.,.omega.-tetrafluoro diesters
  作者：Zhen Yu Yang、Donald J. Burton

  DOI：10.1021/jo00045a027

  日期：1992.9

  lododifluoroacetates 1a-c react with alkenes and zinc in the presence of nickel dichloride hexahydrate in THF at room temperature or 60-degrees-C to give the corresponding alpha,alpha-difluoro esters in good yields. The reaction is also applicable to alkenes containing a variety of functional groups such as trimethylsilyl, hydroxy, ketone, and ester moieties. The reaction of 1 works well with dienes; the products formed depend on the length of chain of the dienes. 1,8-Nonadiene and 1,5-hexadiene afford the alpha,alpha,omega,omega-tetrafluoro diesters, while 1,6-heptadiene gave a mixture of ethyl 2,2-difluoro-8-nonenoate (19) and the cyclopentyl-substituted alpha,alpha-difluoro ester 20. When diallyl ether was used as a substrate, only the tetrahydrofuran derivative 21 was formed. The nickel-catalyzed reaction can be suppressed by p-dinitrobenzene and hydroquinone. A single electron transfer initiated radical mechanism is proposed.
• A new approach to .alpha.,.alpha.-difluoro-functionalized esters
  作者：Zhen Yu Yang、Donald J. Burton

  DOI：10.1021/jo00017a026

  日期：1991.8

  The addition reaction of iododifluoroacetates to alkenes is initiated by copper powder (10-20 mol %) at 50-60-degrees-C. Both terminal and internal alkenes give good yields of adducts. The reaction is also applicable to alkenes containing a variety of functional groups, such as epoxy, hydroxy, ketone, ester, and phosphonate moieties. This reaction can be carried out either neat or in solvents such as hexane, benzene, acetonitrile, DMF, DMSO, and HMPA and is suppressed by p-dinitrobenzene and di-tert-butyl nitroxide. A single electron transfer initiated radical mechanism is proposed. In the presence of nickel dichloride hexahydrate, reduction of the adducts with zinc in moist THF provides the corresponding alpha,alpha-difluoro esters in good yields.
• Preparation of .alpha.-fluorocarboxylic acids and derivatives
  作者：Suzanne T. Purrington、Daniel L. Woodard

  DOI：10.1021/jo00297a090

  日期：1990.5