ethyl 5-(4-hydroxyphenyl)-5-oxopentanoate | 66123-78-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: ethyl 5-(4-hydroxyphenyl)-5-oxopentanoate
• CAS: 66123-78-2
• 化学式: C₁₃H₁₆O₄
• 分子量: 236.268
• InChiKey: JKONVVADIUBABU-UHFFFAOYSA-N

物化性质

• 沸点：
  396.2±22.0 °C(Predicted)
• 密度：
  1.150±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.31
• 重原子数：
  17.0
• 可旋转键数：
  6.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  63.6
• 氢给体数：
  1.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  ethyl 5-(4-hydroxyphenyl)-5-oxopentanoate 在 镍 sodium hydroxide 、 sodium tetrahydroborate 、 lithium aluminium tetrahydride 、 mercury(II) diacetate 、 氢气 、 对甲苯磺酸 作用下， 以 甲醇 、 乙醚 、 苯 为溶剂， 生成 2-phenyltetrahydropyran
  参考文献：
  名称：

  Controlling factors determining the regiochemistry of intramolecular alkoxymercuration

  摘要：

  分子内烷氧汞化反应(E)-5-芳基-4-戊烯-1-醇表明，反应的区域选择性与苯环上对位取代基的Hammett常数密切相关。同时，我们也观察到溶剂对区域选择性产生了较大的影响。这些结果与β-甲基苯乙烯类似物的甲氧基汞化反应进行了比较。区域选择性不仅讨论了空间效应，还涉及了根据汞鎓离子中间体的分子轨道计算所提出的电子效应。

  DOI：

  10.1039/a608003k
• 作为产物：
  描述：

  戊二酸酐 在 氢溴酸 、 溶剂黄146 作用下， 以 二氯甲烷 为溶剂， 反应 23.0h， 生成 ethyl 5-(4-hydroxyphenyl)-5-oxopentanoate
  参考文献：
  名称：

  (Phenylmethoxy)phenyl derivatives of w-oxo- and w-tetrazolylalkanoic acids and related tetrazoles. Synthesis and evaluation as leukotriene D4 receptor antagonists

  摘要：

  Two series of (phenylmethoxy)phenyl compounds derived from the structure of LY163443 were synthesized and evaluated as leukotriene D4 receptor antagonists. In the OMEGA-[(phenylmethoxy)phenyl]-OMEGA-oxoalkanoic acid series, 5-[4-[(4-acetyl-2-ethyl-3-hydroxyphenyl)methoxy]phenyl]-3,3-dimethyl-5-oxopentanoic acid (8) was the most potent antagonist of LTD4-induced contractions of guinea pig ileum (pK(B) of 7.60) and LTD4 pressor response in pithed rats (ED50 of 1.4 mg/kg iv). Replacing the carboxylic acid function with 5-tetrazole gave slightly more potent compounds. In the OMEGA-[5-[[(phenylmethoxy)phenyl]alkyl]tetrazolyl]alkanoic acid series, replacing the carboxylic acid with 5-tetrazole gave compounds that were equally effective in the guinea pig ileum but more potent in vivo against the LTD4 pressor response in rat. The pK(B) value in the guinea pig ileum for 1-[2-hydroxy-3-propyl-4-[[4-[[2-[3-(1H-tetrazol-5-yl)propyl]-2H-tetrazol-5-yl]methyl]phenoxy]methyl]phenyl]ethanone (25) was 7.87 and the ED50 for antagonism of the LTD4 pressor response was 4.0 mg/kg iv. The sodium salts of 8 (9) and 25 (26) given by the iv route of administration antagonized LTD4-induced cardiovascular alterations in anesthetized rat and LTD4-induced bronchoconstriction in guinea pig in a dose-dependent manner. Oral activity was also demonstrated against the LTD4-induced bronchoconstriction in guinea pig.

  DOI：

  10.1021/jm00113a014

文献信息

• Novel Histamine H₃-Receptor Antagonists with Carbonyl-Substituted 4-(3-(Phenoxy)propyl)-1<i>H</i>-imidazole Structures like Ciproxifan and Related Compounds
  作者：Holger Stark、Bassem Sadek、Michael Krause、Annette Hüls、Xavier Ligneau、C. Robin Ganellin、Jean-Michel Arrang、Jean-Charles Schwartz、Walter Schunack

  DOI：10.1021/jm000966l

  日期：2000.10.1

  Novel histamine H(3)-receptor antagonists possessing a 4-(3-(phenoxy)propyl)-1H-imidazole structure generally substituted in the para-position of the phenyl ring have been synthesized according to Mitsunobu or S(N)Ar reactions. With in vitro and in vivo screening for H(3)-receptor antagonist potency, the carbonyl-substituted derivatives proved to be highly active compounds. A number of compounds showed

  根据Mitsunobu或S（N）Ar反应合成了具有4-（3-（苯氧基）丙基）-1H-咪唑结构的新型组胺H（3）-受体拮抗剂，该结构通常在苯环的对位取代。随着对H（3）受体拮抗剂效能的体外和体内筛选，羰基取代的衍生物被证明是高度活性的化合物。许多化合物在亚纳摩尔浓度范围内均显示出体外亲和力，在口服给药后，4-己酰基（10）和4-乙酰基-3-甲基（29）取代的衍生物在体内的拮抗药效力约为0.1 mg / kg。还测试了许多proxifans在其他组胺受体亚型上的亲和力，从而证明了其明显的H（3）-受体亚型选择性。由于环丙基酮衍生物14（ciproxifan）在体外具有很高的亲和力，并且在体内具有很高的效力，因此选择将其用于猴子的进一步研究。它显示出良好的口服吸收和持久的剂量依赖性血浆水平，使其成为药物开发的有希望的化合物。
• Functional-Group-Tolerant Pd-Catalyzed Carbonylative Negishi Coupling with Aryl Iodides
  作者：Dmitrii V. Kalinin、Trond Ulven

  DOI：10.1021/acs.joc.3c00948

  日期：2023.12.1

  A chemoselective Pd-mediated carbonylative Negishi-type catalytic protocol for the synthesis of (hetero)aryl ketones is reported. The protocol employs the PEPPSI-IPr precatalyst and CO gas at atmospheric pressure (balloon) to foster the carbonylative coupling between diverse C(sp3)-hybridized organozinc reagents and a broad range of aryl iodides, including substrates carrying aldehyde, aniline, phenol

  报道了一种用于合成（杂）芳基酮的化学选择性 Pd 介导的羰基化 Negishi 型催化方案。该协议采用 PEPPSI-IPr 预催化剂和 CO 气体在大气压（气球）下促进多种 C(sp 3 ) 杂化有机锌试剂和各种芳基碘化物之间的羰基化偶联，包括携带醛、苯胺、苯酚、或羧酸基团和杂芳基。