4-乙酰氨基苯甲酸甲酯 | 17012-22-5

• 物质功能分类: 化学试剂 - 有机试剂 - 酯类
• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 4-乙酰氨基苯甲酸甲酯
• 中文别名: 4-(乙酰氨基)苯甲酸甲酯
• 英文名称: methyl 4-acetamidobenzoate
• CAS: 17012-22-5
• 化学式: C₁₀H₁₁NO₃
• mdl: MFCD00463106
• 分子量: 193.202
• InChiKey: QKWTXJSLAZKYGV-UHFFFAOYSA-N

物化性质

• 熔点：
  127℃
• 沸点：
  382.1±25.0 °C(Predicted)
• 密度：
  1.204
• 保留指数：
  1896

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  14
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  55.4
• 氢给体数：
  1
• 氢受体数：
  3

安全信息

• 海关编码：
  2924299090
• 储存条件：
  2-8°C，保持干燥环境。

制备方法与用途

4-乙酰氨基苯甲酸甲酯可作为有机合成中间体及医药中间体，主要应用于实验室研发和医药化工生产过程。

反应信息

• 作为反应物：
  描述：

  4-乙酰氨基苯甲酸甲酯 在 palladium on activated charcoal 盐酸 、 lithium aluminium tetrahydride 、 氢气 、 硝酸 作用下， 以 四氢呋喃 、 乙醚 、 乙醇 为溶剂， 反应 2.5h， 生成 (3,4-二氨基苯基)甲醇
  参考文献：
  名称：

  Structure-Activity Relationship of Omeprazole and Analogs as Helicobacter pylori Urease Inhibitors

  摘要：

  Helicobacter pylori urease belongs to a family of highly conserved urea-hydrolyzing enzymes. A common feature of these enzymes is the presence of two Lewis acid nickel ions and a reactive cysteine residue in the active site. The H+/K(+)-ATPase inhibitor omeprazole is a prodrug of a sulfenamide which covalently modifies cysteine residues on the luminal side of the H+/K(+)-ATPase of gastric parietal cells. Omeprazole and eight analogues were selected based on their chemical, electronic, and kinetic properties, and each was incubated with viable H. pylori in phosphate-buffered saline at pH 7.4 for 30 min, after which 100 mM urea was added and the amount of ammonia formed analyzed after a further 10 min. Inhibition between 0% and 100% at a 0.1 mM concentration was observed for the different analogues and could be expressed as a function of the pKa-value of the pyridine, the pKa-value of the benzimidazole, the overall lipophilicity, and, most importantly, the rate of sulfenamide formation, in a quantitative structure-activity relationship. The inhibition was potentiated by a lower pH (favoring the formation of the sulfenamide) but abolished in the presence of beta-mercaptoethanol (a scavenger of the sulfenamide). Structural analogues incapable of yielding the sulfenamide did not inhibit ammonia production. Treatment of Helicobacter felis-infected mice with 230 mumol/kg flurofamide b.i.d. for 4 weeks, known to potently inhibit urease activity in vivo, as a means of eradicating the infection, was tested and compared with the effect of 125 mumol/kg omeprazole b.i.d. for 4 weeks. Neither treatment proved efficacious.

  DOI：

  10.1021/jm00025a008
• 作为产物：
  描述：

  6-氨基烟酸甲酯 在 吡啶 、 乙酸酐 作用下， 以 二氯甲烷 为溶剂， 生成 4-乙酰氨基苯甲酸甲酯
  参考文献：
  名称：

  NEW COMPOUNDS, PHARMACEUTICAL COMPOSITIONS AND USES THEREOF

  摘要：

  本发明涉及一般式I的化合物，其中R1、LP、HetAr、Ar和n如申请中所定义，具有有价值的药理特性，特别是结合GPR119受体并调节其活性。

  公开号：

  US20130143892A1

文献信息

• SO₂ F₂ -Activated Efficient Beckmann Rearrangement of Ketoximes for Accessing Amides and Lactams
  作者：Guofu Zhang、Yiyong Zhao、Lidi Xuan、Chengrong Ding

  DOI：10.1002/ejoc.201900844

  日期：2019.8.15

  A novel protocol for the efficient activation of the Beckmann rearrangement utilizing the readily available sulfuryl fluoride (SO2F2 gas) is reported. The substrate scope of this methodology has been demonstrated by 37 examples with good to nearly quantitative isolated yields in a short time. A tentative mechanism was proposed involving formation and elimination of sulfonyl ester.

  报道了一种利用容易获得的硫酰氟（SO 2 F 2气体）有效激活贝克曼重排的新方案。该方法的底物范围已通过37个实例证明，并在短时间内获得了良好至近乎定量的分离产率。提出了一种尝试性的机制，涉及形成和消除磺酰基酯。
• Room temperature C(sp²)–H oxidative chlorination via photoredox catalysis
  作者：Lei Zhang、Xile Hu

  DOI：10.1039/c7sc03010j

  日期：——

  catalysis has been developed to achieve oxidative C–H chlorination of aromatic compounds using NaCl as the chlorine source and Na2S2O8 as the oxidant. The reactions occur at room temperature and exhibit exclusive selectivity for C(sp2)–H bonds over C(sp3)–H bonds. The method has been used for the chlorination of a diverse set of substrates, including the expedited synthesis of key intermediates to bioactive

  已开发出光氧化还原催化以使用NaCl作为氯源和Na 2 S 2 O 8作为氧化剂实现芳族化合物的CH-H氧化氯化。该反应在室温下发生，对C（sp 2）–H键的选择性高于C（sp 3）–H键的选择性。该方法已用于多种底物的氯化，包括加速合成生物活性化合物和药物的关键中间体。
• Syntheses of folic acid models, 6-(<i>N</i>-acylarylamino)methyllumazines
  作者：Mamoru Igarashi、Tohru Kambe、Masaru Tada

  DOI：10.1002/jhet.5570330222

  日期：1996.3

  Folic acid models, 1,3-dimethyl-6-(N-acylarylamino)methyllumazines 9, were synthesized from 6-bromomethyl-1,3-dimethyllumazine (6), which was derived from 5,6-diamino-1,3-dimethyluracil (1) by the condensation with 1,3-dihydroxyacetone, followed by bromination. The bromide 6 was also prepared by the cycloaddition between 3,6,8-trioxo-5,7-dimethyl-5,6,7,8-tetrahydro-3H-pyrimido[5,4-c][1,2,5]oxadiazine

  叶酸模型是由衍生自5,6-二氨基-1,3-的6-溴甲基-1,3-二甲基lumazine （6）合成的1,3-二甲基-6-（N-酰基芳基氨基）甲基lumazines 9。通过与1，3-二羟基丙酮缩合而形成二甲基尿嘧啶（1），然后进行溴化。溴化物6也通过在3,6,8-三氧代-5,7-二甲基-5,6,7,8-四氢-3H-嘧啶[5,4- c ] [1,2,5 ]恶二嗪（4）和1-丙烯基三甲基甲硅烷基醚，然后进行溴化。叶酸模型9也是由恶二嗪4和3-（N-酰基芳基）氨基-1-丙烯基三甲基甲硅烷基醚8通过环加成。
• Cobalt‐Catalyzed Deoxygenative Hydroboration of Nitro Compounds and Applications to One‐Pot Synthesis of Aldimines and Amides
  作者：Kristina A. Gudun、Raikhan Zakarina、Medet Segizbayev、Davit Hayrapetyan、Ainur Slamova、Andrey Y. Khalimon

  DOI：10.1002/adsc.202101043

  日期：2022.2

  The commercially available and bench-stable Co(acac)2 ligated with bis[(2-diphenylphosphino)phenyl] ether (dpephos) was employed for selective room temperature hydroboration of nitro compounds with HBPin (TOF up to 4615 h−1), tolerating halide, hydroxy, amino, ether, ester, lactone, amide and heteroaromatic functionalities. These reactions offered a direct access to a variety of N-borylamines RN(H)BPin

  使用与双[(2-二苯基膦基)苯基]醚 (dpephos) 连接的可商购且台式稳定的 Co(acac) 2与 HBPin 选择性室温硼氢化硝基化合物（TOF 高达 4615 h -1），耐受卤化物、羟基、氨基、醚、酯、内酯、酰胺和杂芳族官能团。这些反应提供了直接获得各种原位N-硼胺 RN(H)BPin的途径用醛和羧酸处理产生一系列醛亚胺和仲羧酰胺，而不需要脱水和/或偶联剂。以顺序一锅法将这些转化结合起来，可以从容易获得且廉价的硝基化合物直接和选择性地合成醛亚胺和仲羧酰胺。
• B(C ₆ F ₅ ) ₃ ‐Catalyzed Deoxygenative Reduction of Amides to Amines with Ammonia Borane
  作者：Yixiao Pan、Zhenli Luo、Jiahong Han、Xin Xu、Changjun Chen、Haoqiang Zhao、Lijin Xu、Qinghua Fan、Jianliang Xiao

  DOI：10.1002/adsc.201801447

  日期：2019.5.14

  The first B(C6F5)3‐catalyzed deoxygenative reduction of amides into the corresponding amines with readily accessible and stable ammonia borane (AB) as a reducing agent under mild reaction conditions is reported. This metal‐free protocol provides facile access to a wide range of structurally diverse amine products in good to excellent yields, and various functional groups including those that are reduction‐sensitive

  据报道，在温和的反应条件下，用易于获得且稳定的氨硼烷（AB）作为还原剂，将酰胺进行的首次B（C 6 F 5）3催化脱氧还原为相应的胺。该无金属方案可轻松获得各种结构多样的胺产品，且收率高至优异，并且对各种官能团（包括对还原敏感的官能团）均具有良好的耐受性。该新方法也适用于手性酰胺底物，而不会破坏对映体的纯度。BF 3  OEt 2助催化剂在该反应中的作用是通过酰胺-硼加合物的原位形成来活化酰胺羰基。