diethyl (o-tolylethynyl)phosphonate

• 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: diethyl (o-tolylethynyl)phosphonate
• 英文别名: diethyl P-[2-(2-methylphenyl)ethynyl]phosphonate；P-(2-(2-methylphenyl)ethynyl)-diethyl phosphonate；P-(o-tolylethynyl) diethyl phosphonate；diethyl 2-tolylethynylphosphonate；2-[2-methylphenyl]ethynylphosphonic acid, diethyl ester；1-(2-Diethoxyphosphorylethynyl)-2-methylbenzene
• 化学式: C₁₃H₁₇O₃P
• 分子量: 252.25
• InChiKey: JYFKBIMVMZQLHA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  17
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  diethyl (o-tolylethynyl)phosphonate 在 甲醇 、 水 、 silver nitrate 作用下， 反应 24.0h， 以70%的产率得到diethyl (2-oxo-2-(o-tolyl)ethyl)phosphonate
  参考文献：
  名称：

  Synthesis of β-ketophosphonates via AgNO3-catalyzed hydration of alkynylphosphonates: a rate-enhancement effect of methanol

  摘要：

  beta-Ketophosphonates were prepared via AgNO3-catalyzed hydration of alkynylphosphonates with a dramatic rate-enhancement effect of methanol. This benign aqueous-methanol method catalyzed by a low-(c)ost catalyst has simple, atom-economical procedure, and was used effectively with a wide range of substrates. (C) 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2014.12.001
• 作为产物：
  描述：

  2-溴-1-O-甲苯基-乙酮 在 lithium hexamethyldisilazane 作用下， 以 四氢呋喃 、 甲苯 为溶剂， 反应 14.0h， 生成 diethyl (o-tolylethynyl)phosphonate
  参考文献：
  名称：

  N-或P-取代的炔烃的碱诱导一锅法制备

  摘要：

  描述了一种形成 C(sp)-N 或 C(sp)-P 键的有效方法。该转化过程在温和条件（0 或 –20 °C）下以一锅法进行，不需要过渡金属催化剂。碱基诱导方案对稀有杂原子取代的乙炔（N 或 P）表现出良好的官能团耐受性（多达 44 个实例）和高效率（高达 94% 的产率）。此外，所提出的机制得到了关键中间体的隔离的支持。

  DOI：

  10.1002/ejoc.201501092

文献信息

• Cs₂CO₃-Promoted One-Pot Synthesis of Alkynylphosphonates, -phosphinates, and -phosphine Oxides
  作者：Yulei Wang、Jiepeng Gan、Liu Leo Liu、Hang Yuan、Yuxing Gao、Yan Liu、Yufen Zhao

  DOI：10.1021/jo500312n

  日期：2014.4.18

  trialkyl phosphites, ethyl diphenylphosphinite, or diethyl phenylphosphonite has been developed under metal-free conditions, providing a practical and powerful tool for one-pot synthesis of valuable alkynylphosphonates, -phosphinates, and -phosphine oxides in good to excellent yields.

  在无金属条件下开发了一种新颖且有效的Cs 2 CO 3促进的各种1,1,1-二溴-1-烯烃与容易获得的亚磷酸三烷基酯，乙基二苯基亚膦酸酯或二乙基苯基亚膦酸酯的磷酸化或亚膦酰基化，提供了实用而有效的方法一锅合成有价值的炔基膦酸酯，-次膦酸酯和-膦氧化物的工具，产率很高。
• Copper-catalyzed decarboxylative C−P cross coupling of arylpropiolic acids with dialkyl hydrazinylphosphonates leading to alkynylphosphonates
  作者：Weizhu Chen、Dumei Ma、Gaobo Hu、Zhuan Hong、Yuxing Gao、Yufen Zhao

  DOI：10.1080/00397911.2016.1192648

  日期：2016.7.17

  ABSTRACT A facile and novel copper-catalyzed decarboxylative coupling of various arylpropiolic acids with readily available dialkyl hydrazinylphosphonates has been developed, providing an attractive synthetic tool for the synthesis of valuable alkynylphosphonates with operational simplicity and mild reaction conditions. GRAPHICAL ABSTRACT

  摘要 已开发出一种简便、新颖的铜催化脱羧偶联各种芳基丙酸与容易获得的二烷基肼基膦酸酯，为合成有价值的炔基膦酸酯提供了一种有吸引力的合成工具，操作简单，反应条件温和。图形概要
• Mukaiyama reagent-promoted metal-free preparation of alkynyl sulfones and phosphonates under mild conditions
  作者：Danyang Qi、Wanrong Dong、Zhihong Peng、Yingjun Zhang、Delie An

  DOI：10.1016/j.tet.2019.06.035

  日期：2019.8

  An efficient and mild route for the formation sulfur or phosphor-substituted alkynes was herein demonstrated. The Mukaiyama reagent-mediated transformation started from easily-accessible substrates without carbon-carbon triple bonds, and the reaction proceeded under mild conditions (room temperature) in a one-pot manner, requiring for no transition metal-catalysts. The practical protocol featured for

  本文证明了形成硫或磷取代的炔烃的有效且温和的途径。Mukaiyama试剂介导的转化从没有碳-碳三键的易于接近的底物开始，并且反应在温和条件下（室温）以一锅法进行，不需要过渡金属催化剂。该实用协议的特点是，以较低的成本对炔基砜和炔基膦酸酯具有良好的官能团耐受性（最多41个实例）和高效（最多91％的收率）。
• Ruthenium-Catalyzed [2 + 2] Cycloadditions of Bicyclic Alkenes with Alkynyl Phosphonates
  作者：Neil Cockburn、Elham Karimi、William Tam

  DOI：10.1021/jo9010206

  日期：2009.8.7

  Ruthenium-catalyzed [2 + 2] cycloadditions of bicyclic alkenes with alkynyl phosphonates were investigated. The phosphonate moieties were found to be compatible with the Ru-catalyzed cycloadditions giving the corresponding cyclobutene cycloadducts in low to excellent yield (up to 96%). Alkynyl phosphonates showed lower reactivity than other heteroatom-substituted alkynes such as alkynyl halides, ynamides

  研究了钌催化的双环烯烃与炔基膦酸酯的[2 + 2]环加成反应。发现膦酸酯部分与Ru催化的环加成物相容，从而以低至优异的产率（高达96％）给出相应的环丁烯环加合物。炔基膦酸酯的反应性比其他杂原子取代的炔烃（如炔基卤化物，乙酰胺，炔基硫醚和炔基砜）低，并且需要更高的反应温度和更长的反应时间。
• Ruthenium-Catalyzed Homo Diels–Alder [2 + 2 + 2] Cycloadditions of Alkynyl Phosphonates with Bicyclo[2.2.1]hepta-2,5-diene
  作者：Tanner J. Kettles、Neil Cockburn、William Tam

  DOI：10.1021/jo2010928

  日期：2011.8.19

  Ruthenium-catalyzed homo Diels–Alder [2 + 2 + 2] cycloadditions between alkynyl phosphonates and bicyclo[2.2.1]hepta-2,5-diene were studied. The observed reactivity was found to be dependent on the presence of the phosphonate moiety. The Ru-catalyzed cycloaddition was compatible with a variety of aromatic and aliphatic substituted alkynyl phosphonates, providing the corresponding phosphonate substituted

  研究了炔基膦酸酯与双环[2.2.1]庚-2,5-二烯之间钌催化的均Diels-Alder [2 + 2 + 2]环加成反应。发现观察到的反应性取决于膦酸酯部分的存在。Ru催化的环加成反应可与多种芳族和脂族取代的炔基膦酸酯相容，从而以低至良好的收率（高达88％）提供相应的膦酸酯取代的δ-环戊烯。