4-Nitrobenzyl triflate | 114533-06-1

• 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: 4-Nitrobenzyl triflate
• 英文别名: (4-nitrophenyl)methyl trifluoromethanesulfonate
• CAS: 114533-06-1
• 化学式: C₈H₆F₃NO₅S
• 分子量: 285.201
• InChiKey: DFMFSSOQMCTCGK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  97.6
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  4-Nitrobenzyl triflate 在 盐酸 作用下， 以 甲醇 为溶剂， 反应 11.0h， 生成 3-(4-Nitrobenzyl)-L-histidine dihydrochloride
  参考文献：
  名称：

  Synthesis and structure-activity relationships of a novel series of non-peptide angiotensin II receptor binding inhibitors specific for the AT2 subtype

  摘要：

  Structure-activity relationships are reported for a novel class of 4,5,6,7-tetrahydro-1H-imidazo[4,5-c]pyridine-6-carboxylic acid derivatives that displace I-125-labeled angiotensin II from a specific subset of angiotensin II (Ang II) binding sites in rat adrenal preparations. This binding site is not the Ang II receptor mediating vascular contraction or aldosterone release, but, rather, is one whose function has not yet been fully elucidated. It has been identified in a number of tissues and has a similar affinity for Ang II and its peptide analogues as does the vascular receptor. The non-peptide compounds reported here are uniquely specific in displacing Ang II at this binding site and are inactive in antagonizing Ang II at the vascular receptor or in pharmacological assays measuring vascular effects. PD 123,319 (79), one of the most potent compounds, has an IC50 of 34 nM. Certain of these compounds may have utility in the definition and study of Ang II receptor subtypes.

  DOI：

  10.1021/jm00115a014
• 作为产物：
  描述：

  4-硝基苄胺 在 sodium hydroxide 、 2,6-二叔丁基-4-甲基吡啶 、 dinitrogen tetraoxide 、 sodium carbonate 作用下， 以 氘代氯仿 为溶剂， 生成 4-Nitrobenzyl triflate
  参考文献：
  名称：

  Alkyl diazonium ion pairs and deamination. Part 45. The preparation of carbonium ions and other high-energy alkylating agents under mild conditions

  摘要：

  DOI：

  10.1021/ja00219a082

文献信息

• Nickel-Catalyzed Reductive Benzylation of Aldehydes with Benzyl Halides and Pseudohalides
  作者：Farhad Panahi、Marzieh Bahmani、Nasser Iranpoor

  DOI：10.1002/adsc.201400970

  日期：2015.4.13

  benzylation of aromatic and aliphatic aldehydes with benzylic halides is reported using a nickel/zinc catalyst system. In addition to benzylic halides, the first report on the addition of benzylic triflates, acetates, tosylates and tritylates to aldehydes is also presented. By this new method a range of alcohols was synthesized efficiently from aldehydes and benzylic substrates at room temperature in moderate

  据报道，使用镍/锌催化剂体系可将芳族和脂族醛与苄基卤化物进行还原性苄基化反应。除苄基卤化物外，还首次报道了向醛中添加苄基三氟甲磺酸酯，乙酸酯，甲苯磺酸酯和三苯甲酸酯的方法。通过这种新方法，可以在室温下从醛和苄基底物中高效合成中度到高产率的多种醇。温和的反应条件和良好的官能团耐受性使这种镍催化的方法可用于合成各种苄醇。
• Evolution of Propargyl Ethers into Allylgold Cations in the Cyclization of Enynes
  作者：Eloísa Jiménez-Núñez、Mihai Raducan、Thorsten Lauterbach、Kian Molawi、César R. Solorio、Antonio M. Echavarren

  DOI：10.1002/anie.200902248

  日期：2009.8.3

  Shifty moves: 1,n‐Enynes with propargyl alcohol, ether, or silyl ether units undergo gold(I)‐catalyzed intramolecular 1,(n−1)‐migration via allylgold cations (see scheme). These intermediates have been trapped by olefins, indole, and by a formal intramolecular CH insertion. In the case of aryl‐substituted 1,7‐enynes, a cascade process involving a Nazarov‐type cyclization leads to 6,7‐dihydro‐5H‐benzo[c]fluorenes

  变动的动作：1，带有炔丙醇，醚或甲硅烷基醚单元的n-烯炔通过烯丙基阳离子经历金（I）催化的分子内1，（n -1）迁移（参见方案）。这些中间体已被烯烃，吲哚和正规的分子内CH插入所俘获。就芳基取代的1,7-炔而言，涉及纳扎罗夫型环化的级联反应会生成6,7-二氢-5 H-苯并[ c ]芴。
• Nickel-Catalyzed Reductive Addition of Aryl/Benzyl Halides and Pseudohalides to Carbodiimides for the Synthesis of Amides
  作者：Farhad Panahi、Fereshteh Jamedi、Nasser Iranpoor

  DOI：10.1002/ejoc.201501349

  日期：2016.2

  A Nickel-catalyzed reductive process is described for the direct amidation of benzyl and aryl halides using carbodiimides as the amidating agent. Moreover, aryl and benzyl C–O electrophiles such as triflate, acetate, tosylate, trityl ether, and pivalate were converted into amides using this method. The in-situ-generated Ni0 acts as a catalyst for the reaction at room temperature for benzylic substrates

  描述了使用碳二亚胺作为酰胺化剂直接酰胺化苄基和芳基卤化物的镍催化还原方法。此外，芳基和苄基 C-O 亲电试剂，如三氟甲磺酸酯、乙酸酯、甲苯磺酸酯、三苯甲基醚和新戊酸酯，使用该方法转化为酰胺。原位生成的 NiO 充当室温下苄基底物和 70°C 芳基亲电试剂反应的催化剂。这种新的镍催化还原偶联方案为使用碳二亚胺合成各种酰胺提供了一种通用且操作简单的方法。带有大取代基的酰胺可以通过这种策略以高产率合成，这证明了其在酰胺合成中的有效性。
• Copper-Catalyzed Hydroalkylation of Terminal Alkynes
  作者：Mycah R. Uehling、Alison M. Suess、Gojko Lalic

  DOI：10.1021/ja5124368

  日期：2015.2.4

  presence of a wide range of functional groups. Overall, the new hydroalkylation reaction allows highly efficient and diastereospecific synthesis of (E)-alkenes from readily available terminal alkynes and alkyl triflates. On the basis of a preliminary mechanistic study, we propose that the hydroalkylation reaction involves copper hydride formation, hydrocupration of an alkyne, and alkylation of an alkenyl

  我们已经开发出使用烷基三氟甲磺酸酯作为偶联伙伴和 (Me(2)HSi)(2)O 作为氢化物供体的铜催化加氢烷基化末端炔烃。加氢烷基化以优异的抗马尔科夫尼科夫区域选择性进行并仅提供 (E)-烯烃。我们已经证明，烷基和芳基取代的炔烃以及 1° 烷基和苄基三氟甲磺酸酯都可以用作底物。最后，转化可以在广泛的官能团存在下完成。总体而言，新的加氢烷基化反应允许从容易获得的末端炔烃和烷基三氟甲磺酸酯高效和非对映特异性地合成（E）-烯烃。在初步机理研究的基础上，我们提出加氢烷基化反应涉及氢化铜的形成、炔烃的加氢反应、
• NEUTRAL LAYER POLYMER COMPOSITION FOR DIRECTED SELF ASSEMBLY AND PROCESSES THEREOF
  申请人：WU Hengpeng

  公开号：US20130330668A1

  公开（公告）日：2013-12-12

  The present invention relates to a novel polymeric composition comprising a novel polymer having two or more repeat units and a terminus having the structure (1): wherein R 1 represents a C 1 -C 20 substituted or unsubstituted alkyl group, w is a number from 1-8, X is oxygen (O) or nitrogen (N), and R d is a reactive group. The invention also relates to a process for forming a pattern using the novel polymeric composition. The invention further relates to a process of making the novel polymer.

  本发明涉及一种新型聚合物组合物，包括具有两个或更多重复单元和具有结构（1）的末端的新型聚合物：其中R1代表C1-C20取代或未取代的烷基基团，w为1-8的数字，X为氧（O）或氮（N），Rd为反应性基团。该发明还涉及使用该新型聚合物组合物形成图案的方法。该发明还涉及制备该新型聚合物的方法。