diethyl (2-cyclopropylethynyl-5-methoxyphenyl)phosphonate | 1075798-11-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: diethyl (2-cyclopropylethynyl-5-methoxyphenyl)phosphonate
• 英文别名: 1-(2-Cyclopropylethynyl)-2-diethoxyphosphoryl-4-methoxybenzene
• CAS: 1075798-11-6
• 化学式: C₁₆H₂₁O₄P
• 分子量: 308.314
• InChiKey: KDPOBDLBWKFUJO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  21
• 可旋转键数：
  7
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  44.8
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  diethyl (2-cyclopropylethynyl-5-methoxyphenyl)phosphonate 在 sodium hydroxide 、 copper(l) iodide 作用下， 以 乙醇 、 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 26.0h， 以65%的产率得到3-cyclopropyl-1-ethoxy-7-methoxy-2,1-benzoxaphosphorin 1-oxide
  参考文献：
  名称：

  磷酸异香豆素的醇解和 2-(2-氧代烷基)苯基膦酸酯的合成

  摘要：

  磷酸异香豆素不发生氨解，但发现它们在醇和伯胺的存在下对醇解敏感。本文研究了这种意想不到的醇解反应，发现在 Et3N 或 K2CO3 存在下，4-未取代和 4-氯代磷杂香豆素顺利进行醇解反应，以良好的收率得到一系列 2-(2-氧代烷基)苯基膦酸酯，而 4 -碘-和4-溴磷异香豆素经历了脱卤-醇解串联反应。讨论了醇解反应的可能机理。此外，通过汞（II）催化的具有高区域选择性的 2-（1-炔基）苯基膦酸酯的水合开发了直接获得 2-（2-氧代烷基）苯基膦酸酯的方法。在初步研究中，获得的新型酮膦酸盐对α-胰凝乳蛋白酶显示中等抑制活性。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)

  DOI：

  10.1002/ejoc.200800616
• 作为产物：
  描述：

  环丙乙炔 、 2-(diethoxyphosphoryl)-4-methoxyphenyl 1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonate 在 bis-triphenylphosphine-palladium(II) chloride 、 三乙胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 生成 diethyl (2-cyclopropylethynyl-5-methoxyphenyl)phosphonate
  参考文献：
  名称：

  Phosphaisocoumarins as a new class of potent inhibitors for pancreatic cholesterol esterase

  摘要：

  Due to the importance of pancreatic cholesterol esterase (CEase) as a potential target in atherosclerosis and for the development of hypocholesterolemic agents, there are increasing interests in designing and synthesizing CEase inhibitors. In the present study, we prepared forty-five isocoumarin phosphorus analogues (i.e., phosphaisocoumarins) and investigated the inhibition of these compounds on the CEase. The results showed that some phosphaisocoumarins could act as potent inhibitors of CEase. The most potent inhibitors, compounds 9d, 10a and 12e give IC(50) values of 4.8 mu M, 2.3 mu M and 1.9 mu M, respectively. The inhibition mechanism and kinetic characterization studies indicate that they are reversible competitive inhibitors. (C) 2010 Published by Elsevier Masson SAS.

  DOI：

  10.1016/j.ejmech.2010.01.038

文献信息

• An Efficient Route to 4-Halophosphaisocoumarins via CuX₂-Mediated Direct Halocyclization of 2-(1-Alkynyl)phenylphosphonic Acid Diesters
  作者：Ai-Yun Peng、Fei Hao、Baojian Li、Zheng Wang、Yidan Du

  DOI：10.1021/jo801842g

  日期：2008.11.21

  A series of 4-halophosphaisocoumarins were synthesized via CuX2 (X = Br, Cl) -mediated direct halocyclization of 2-(1-alkynyl)phenylphosphonic acid diesters in dichloroethane with the addition of n-Bu4NX or/and AgI in good to excellent yields. This reaction provides an efficient route to 4-halophosphaisocoumarins and represents the first example of bromo- and chlorocyclization of unsaturated phosphonic

  通过CuX2（X = Br，Cl）介导的2-（1-炔基）苯基膦酸二酯在二氯乙烷中的直接卤代环化反应，合成了一系列4-卤代磷酸异香豆素，并添加了n-Bu4NX或/和AgI，收率良好。 。该反应提供了通往4-卤代磷酸异香豆素的有效途径，并代表了不饱和膦酸二酯的溴环和氯环化的第一个实例。
• Phosphaisocoumarins as a new class of potent inhibitors for pancreatic cholesterol esterase
  作者：Baojian Li、Binhua Zhou、Hailiang Lu、Lin Ma、Ai-Yun Peng

  DOI：10.1016/j.ejmech.2010.01.038

  日期：2010.5

  Due to the importance of pancreatic cholesterol esterase (CEase) as a potential target in atherosclerosis and for the development of hypocholesterolemic agents, there are increasing interests in designing and synthesizing CEase inhibitors. In the present study, we prepared forty-five isocoumarin phosphorus analogues (i.e., phosphaisocoumarins) and investigated the inhibition of these compounds on the CEase. The results showed that some phosphaisocoumarins could act as potent inhibitors of CEase. The most potent inhibitors, compounds 9d, 10a and 12e give IC(50) values of 4.8 mu M, 2.3 mu M and 1.9 mu M, respectively. The inhibition mechanism and kinetic characterization studies indicate that they are reversible competitive inhibitors. (C) 2010 Published by Elsevier Masson SAS.
• Alcoholysis of Phosphaisocoumarins and Synthesis of 2-(2-Oxoalkyl)phenylphosphonates
  作者：Ai-Yun Peng、Yu-Juan Guo、Zhi-Hai Ke、Shizheng Zhu

  DOI：10.1002/ejoc.200800616

  日期：2008.11

  4-bromophosphaisocoumarins underwent a dehalogenation–alcoholysis tandem reaction. The possible mechanism for the alcoholysis reaction was discussed. In addition, direct access to 2-(2-oxoalkyl)phenylphosphonates was developed by the mercury(II)-catalyzed hydration of 2-(1-alkynly)phenylphosphonates with high regioselectivity. In a preliminary study, the obtained novel keto phosphonates showed medium inhibitory

  磷酸异香豆素不发生氨解，但发现它们在醇和伯胺的存在下对醇解敏感。本文研究了这种意想不到的醇解反应，发现在 Et3N 或 K2CO3 存在下，4-未取代和 4-氯代磷杂香豆素顺利进行醇解反应，以良好的收率得到一系列 2-(2-氧代烷基)苯基膦酸酯，而 4 -碘-和4-溴磷异香豆素经历了脱卤-醇解串联反应。讨论了醇解反应的可能机理。此外，通过汞（II）催化的具有高区域选择性的 2-（1-炔基）苯基膦酸酯的水合开发了直接获得 2-（2-氧代烷基）苯基膦酸酯的方法。在初步研究中，获得的新型酮膦酸盐对α-胰凝乳蛋白酶显示中等抑制活性。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)