N-(4-chloro-2-hydroxyphenyl)-2,2,2-trifluoroacetamide | 144181-67-9

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: N-(4-chloro-2-hydroxyphenyl)-2,2,2-trifluoroacetamide
• 英文别名: 2-Trifluoroacetylamino-5-chlorophenol
• CAS: 144181-67-9
• 化学式: C₈H₅ClF₃NO₂
• 分子量: 239.581
• InChiKey: URJGYTQZIVOXCT-UHFFFAOYSA-N

物化性质

• 沸点：
  305.7±42.0 °C(Predicted)
• 密度：
  1.604±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  15
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  49.3
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  N-(4-chloro-2-hydroxyphenyl)-2,2,2-trifluoroacetamide 、 4-溴甲基苯甲酸甲酯 、 potassium carbonate 、 盐酸 在 乙酸乙酯 、 silica gel 、 ethyl acetate benzene 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 1.5h， 以to give the title compound (353 mg)的产率得到methyl 4-(2-trifluoroacetylamino-5-chlorophenoxymethyl)benzoate
  参考文献：
  名称：

  Sulfonamide and carboxamide derivatives and drugs containing the same as the active ingredient

  摘要：

  式(I)的磺胺或羧酰胺衍生物及其作为活性成分的药物组合物：（其中A环，B环是碳环或杂环；Z1是—COR1，—CH2CH—COR1等；Z2是H，烷基等；Z3是单键，烷基；Z4是SO2，CO；Z5是烷基，苯基，杂环等；R2是CONR8，O，S，NZ6，Z7-烷基，烷基等；R3是H，烷基，卤素，CF3等；R4是H，（取代）烷基等；n，t为1-4）。 式(I)的化合物可以结合到PGE2受体并显示其拮抗活性或激动活性。因此，它们被认为是用于抑制子宫收缩、镇痛剂、止泻剂、催眠剂、增加膀胱容量的药物或用于子宫收缩的药物、泻药、抑制胃酸分泌、降压或利尿剂的有用药物。

  公开号：

  US06448290B1
• 作为产物：
  描述：

  N-(4-chlorophenyl)-2,2,2-trifluoroacetamide 在 dipotassium peroxodisulfate 、 [ruthenium(II)(η⁶-1-methyl-4-isopropyl-benzene)(chloride)(μ-chloride)]₂ 、 三氟乙酸 、 三氟乙酸酐 作用下， 反应 50.0h， 以84%的产率得到N-(4-chloro-2-hydroxyphenyl)-2,2,2-trifluoroacetamide
  参考文献：
  名称：

  Synthesis of 2-Aminophenols and Heterocycles by Ru-Catalyzed C–H Mono- and Dihydroxylation

  摘要：

  A novel and efficient synthesis of 2-aminophenols, 2-aminobenzene-1,3-diols, and heterocycles through Ru-catalyzed C-H mono- and dihydroxylation of anilides has been developed with a new directing group strategy. The reaction demonstrates excellent reactivity, regioselectivity, good functional group tolerance, and high yields.

  DOI：

  10.1021/ol400437a

文献信息

• CH Oxygenation and<i>N</i>-Trifluoroacylation of Arylamines Under Metal-Free Conditions: A Convenient Approach to 2-Aminophenols and<i>N</i>-Trifluoroacyl-<i>ortho</i>-aminophenols
  作者：Vunnam Venkateswarlu、K. A. Aravinda Kumar、Shilpi Balgotra、G. Lakshma Reddy、M. Srinivas、Ram A. Vishwakarma、Sanghapal D. Sawant

  DOI：10.1002/chem.201402411

  日期：2014.5.26

  Direct ortho‐hydroxylation through CH oxygenation and N‐trifluoroacylation of anilines was achieved in a single step under metal‐free conditions by using a combination of TFA and oxone. The method allowed the formation of functionalised amino phenolic compounds such as ortho‐hydroxy‐N‐trifluoroacetanilides in good yields with broad substrate scope.

  通过在无金属条件下，通过使用TFA和过硫酸氢钾的组合，一步实现苯胺的CH 3 H氧化和N-三氟酰化直接邻羟基化。该方法可以形成功能化的氨基酚类化合物，例如邻-羟基-N-三氟乙酰苯胺，收率高，具有广泛的底物范围。
• 2-(Trifluoroacetyloxy)pyridine as a Mild Trifluoroacetylating Reagent of Amines and Alcohols
  作者：Takashi Keumi、Masakazu Shimada、Toshio Morita、Hidehiko Kitajima

  DOI：10.1246/bcsj.63.2252

  日期：1990.8

  new trifluoroacetylating reagent, 2-(trifluoroacetyloxy)pyridine (TFAP), was prepared by the reaction of 2-pyridinol and trifluoroacetic anhydride. TFAP has been found to be effective in the trifluoroacetylation of aliphatic and aromatic amines and alcohols including phenol under mild conditions. The reaction of p-nitrophenol with TFAP in ether gave the hydrogen-bonded complex between the phenol and

  通过2-吡啶醇和三氟乙酸酐的反应制备了一种新的三氟乙酰化试剂2-(三氟乙酰氧基)吡啶(TFAP)。已发现 TFAP 在温和条件下对脂肪族和芳香族胺和醇（包括苯酚）的三氟乙酰化有效。对硝基苯酚与 TFAP 在乙醚中的反应得到苯酚和 2-吡啶酮之间的氢键配合物。该试剂还被证明可用于醛肟和酰胺的分子内脱水，以高产率得到腈。
• SULFONAMIDE AND CARBOXAMIDE DERIVATIVES AND DRUGS CONTAINING THE SAME AS THE ACTIVE INGREDIENT
  申请人：ONO PHARMACEUTICAL CO., LTD.

  公开号：EP0947500A1

  公开（公告）日：1999-10-06

  The sulfonamide or carboamide derivatives of the formula (I) and a pharmaceutical composition which comprise them as an active ingredient: (wherein A ring, B ring is carbocyclic ring, heterocyclic ring; Z1 is -COR1, -CH=CH-COR1 etc.; Z2 is H, alkyl etc.; Z3 is single bond, alkylene; Z4 is SO2, CO; Z5 is alkyl, phenyl, heterocyclic ring etc.; R2 is CONR8, O, S, NZ6, Z7-alkylene, alkylene etc.; R3 is H, alkyl, halogen, CF3 etc.; R4 is H, (substituted) alkyl etc.; n, t is 1-4). The compounds of the formula (I) can bind to receptors of PGE2 and show antagonistic activity against the action thereof or agonistic activity. Therefore, they are considered to be useful as medicine for inhibition of uterine contraction, analgesics, antidiarrheals, sleep inducers, medicine for increase of vesical capacity or medicine for uterine contraction, cathartic, suppression of gastric acid secretion, antihypertensive or diuretic agents.

  式(I)的磺酰胺或羧酰胺衍生物以及包含它们作为活性成分的药物组合物： (其中 A 环、B 环为碳环、杂环；Z1 为-COR1、-CH=CH-COR1 等；Z2 为 H、烷基等；Z3 为单键、亚烷基；Z4 为 SO2、CO；Z5 为烷基、苯基、杂环等。R2 是 CONR8、O、S、NZ6、Z7-烷基、亚烷基等；R3 是 H、烷基、卤素、CF3 等；R4 是 H、（取代的）烷基等；n、t 是 1-4）。 式（I）化合物可与 PGE2 受体结合，并显示出对其作用的拮抗活性或激动活性。因此，它们被认为可用作抑制子宫收缩的药物、镇痛药、止泻药、睡眠诱导剂、增加膀胱容量的药物或子宫收缩的药物、泻药、抑制胃酸分泌的药物、降压药或利尿剂。
• Metal-Free Chemoselective ortho-C(sp2)–F Bond Hydroxylation and N-Trifluoroacylation of Fluoroarylamines for Domino Synthesis of 2-(N-Trifluoroacyl)aminophenols
  作者：Sanghapal Sawant、Vunnam Venkateswarlu、Shilpi Balgotra、K. Aravinda Kumar、Ram Vishwakarma

  DOI：10.1055/s-0034-1379905

  日期：——

  A novel chemoselective reaction for the formation of C-O bonds by C(sp(2))-F bond cleavage and concomitant N-trifluoroacylation of fluoroanilines using trifluoroacetic acid and Oxone((R)) is presented. This domino reaction gives o-hydroxy-N-trifluoroacetanilides in good yields under metal-free conditions in a single step. Selective ortho-directed monohydroxylation and N-trifluoroacylation of 2- and 6-fluoro- or 2,6-difluoro-substituted anilines takes place in this transformation.
• Acid-catalyzed amino-migration of O-phenylhydroxylamines
  作者：Naoki Haga、Yasuyuki Endo、Kenichiro Kataoka、Kentaro Yamaguchi、Koichi Shudo

  DOI：10.1021/ja00051a012

  日期：1992.12

  The mechanism of amino-migration of O-phenylhydroxylamine (1a) was studied. It was found that 1 rearranges to give 2-aminophenol (50%) and 4-aminophenol (7%) in trifluoroacetic acid (TFA). The predominance of the ortho rearrangement of 1 clearly distinguishes this process from the Bamberger rearrangement. From cross-coupling experiments employing stable isotopes, it was clarified that the ortho rearrangement proceeds intramolecularly and the para rearrangement involves both intra- and intermolecular processes. Good first-order kinetics were obtained for the rearrangement. The Hammett plot (sigma+) with a large negative slope (rho = -7.8) indicates that initial heterolytic N-O bond cleavage of 1 occurs and generates a positive charge on the oxygen atom with considerable delocalization into the aromatic ring. An ion-molecule pair involving a phenoxenium ion and an ammonia molecule as an intermediate rationalizes all of the results. In this pair, intramolecular combination to the ortho position proceeds preferentially over that to the para position. Formation of catechol and hydroquinone can be explained in terms of nucleophilic attack of TFA on the phenoxenium ion in a solvent-separated pair.