diethyl α-trimethylsilyloxy-4-chlorobenzylphosphonate | 52057-50-8

• 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 α-trimethylsilyloxy-4-chlorobenzylphosphonate
• 英文别名: [(4-Chlorophenyl)-diethoxyphosphorylmethoxy]-trimethylsilane
• CAS: 52057-50-8
• 化学式: C₁₄H₂₄ClO₄PSi
• 分子量: 350.854
• InChiKey: SOUGJKGNLTVAMM-UHFFFAOYSA-N

物化性质

• 沸点：
  393.5±37.0 °C(Predicted)
• 密度：
  1.121±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.46
• 重原子数：
  21
• 可旋转键数：
  8
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.57
• 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 α-trimethylsilyloxy-4-chlorobenzylphosphonate 在 N-溴代丁二酰亚胺(NBS) 、 偶氮二异丁腈 作用下， 以 四氯化碳 为溶剂， 反应 2.0h， 以88%的产率得到(4-chloro-benzoyl)-phosphonic acid diethyl ester
  参考文献：
  名称：

  A convenient and mild protocol for preparation of α –trimethylsilyloxyphosphonates using sulfamic acid and their oxidation to α – ketophosphonates in the presence of N-bromosuccinimide

  摘要：

  DOI：

  10.24820/ark.5550190.p011.603
• 作为产物：
  描述：

  4-氯苯甲醛 、 二乙基三甲基硅基亚磷酸盐 生成 diethyl α-trimethylsilyloxy-4-chlorobenzylphosphonate
  参考文献：
  名称：

  Pudovik,A.N. et al., Journal of general chemistry of the USSR, 1974, vol. 44, p. 500 - 503

  摘要：

  DOI：

文献信息

• Magnesium triflate [Mg(OTf)2] a highly stable, non-hygroscopic and a recyclable catalyst for the high yielding preparation of diethyl α-trimethylsilyloxyphosphonates from diethyl α-hydroxyphosphonates by HMDS under solventless conditions
  作者：Habib Firouzabadi、Nasser Iranpoor、Sara Sobhani、Soheila Ghassamipour

  DOI：10.1016/j.jorganchem.2004.07.009

  日期：2004.9

  and convenient procedure for the easy conversion of various α-hydroxyphosphonates to α-trimethylsilyloxyphosphonates under mild conditions with HMDS in the presence of a catalytic amount of magnesium triflate as a highly stable and a non-hygroscopic recyclable catalyst in neat conditions is described. In order to show the general applicability of this method, we have also applied this procedure successfully

  在催化量的三氟甲磺酸镁作为高稳定性和非吸湿性可回收催化剂的条件下，使用HMDS在温和条件下将各种α-羟基膦酸酯轻松转化为α-三甲基甲硅烷氧基膦酸酯的广泛，适用性强，高产率且方便的方法。描述了整洁的条件。为了表明该方法的一般适用性，我们还成功地将该方法用于普通醇和酚的甲硅烷基化。
• Aluminium Triflate [Al(OTf)₃] as a Recyclable Catalyst for the Conversion of α-Hydroxyphosphonates, Alcohols and Phenols to Their Corresponding O-Silylated Products with Hexamethyldisilazane (HMDS)
  作者：Habib Firouzabadi、Nasser Iranpoor、Sara Sobhani、Soheila Ghassamipour

  DOI：10.1055/s-2005-861789

  日期：——

  Al(OTf)3 as a recyclable catalyst conducts the efficient conversion of various types of α-hydroxyphosphonates to their corresponding α-trimethysilyloxyphosphonates with HMDS in the absence of solvent at room temperature. The general applicability of the catalyst under solvent-free conditions is demonstrated by applying it for the successful silylation of alcohols and phenols with HMDS in high yields.

  三氟甲磺酸铝（Al(OTf)3）作为一种可回收催化剂，在室温下无溶剂存在的条件下，能高效地将各种类型的α-羟基膦酸酯转化为相应的α-三甲基硅氧基膦酸酯，使用的是六甲基二硅胺烷（HMDS）。该催化剂在无溶剂条件下的广泛适用性通过其在高产率下成功实现醇和酚与HMDS的硅烷化反应而得到证明。
• Iron(III) trifluoroacetate [Fe(F3CCO2)3] as an easily available, non-hygroscopic, non-corrosive, highly stable and a reusable Lewis Acid catalyst: Efficient O-silylation of α-hydroxyphosphonates, alcohols and phenols by hexamethyldisilazane (HMDS) under solvent-free conditions
  作者：Habib Firouzabadi、Nasser Iranpoor、Abbas Ali Jafari、Mohammad Reza Jafari

  DOI：10.1016/j.jorganchem.2008.05.018

  日期：2008.8

  O-Silylation of hydroxyl groups of α-hydroxyphosphonates, primary, secondary tertiary-alcohols and phenols with HMDS was achieved in high to excellent yields using iron(III) trifluoroacetate [Fe(F3CCO2)3] as an easily available and a cost effective, non-hygroscopic, non-corrosive, highly stable and an efficient catalyst under solvent-free conditions. As a typical reaction, we have scaled up silylation of diphenyl

  ø α-hydroxyphosphonates，伯，仲叔醇和酚与HMDS的羟基-Silylation在实现高使用铁（III）三氟乙酸盐的[Fe（F优异的产率3 CCO 2）3 ]作为容易获得和在无溶剂条件下具有成本效益，不吸湿，不腐蚀，高度稳定和高效的催化剂。作为典型的反应，我们已将二苯甲醇的甲硅烷基化规模扩大到20 mmol的底物，以证明该催化剂对于规模化生产非常有效。通过简单的过滤就可以容易地分离出催化剂，并且可以循环使用该催化剂进行二苯甲硅烷基化反应，而不会失去其催化活性。
• 一种1-(4-氯苯基)-2-环丙基-1-丙酮的制备方法
  申请人：江苏七洲绿色化工股份有限公司

  公开号：CN106316808A

  公开（公告）日：2017-01-11

  本发明涉及一种1‑(4‑氯苯基)‑2‑环丙基‑1‑丙酮的制备方法，将化合物Ⅰ和环丙基甲基酮，在碱和有机溶剂的存在下，在0～30℃下反应得到化合物Ⅱ；使化合物Ⅱ在酸的存在下水解，得到化合物Ⅲ，即1‑(4‑氯苯基)‑2‑环丙基‑1‑丙酮；其中：所述化合物Ⅰ的结构式为：所述化合物Ⅱ的结构式为：所述化合物Ⅲ的结构式为：R1为三甲基硅基、乙酰基、甲基磺酰基中的任意一种；R2是甲基或乙基。该方法工艺简单，成本较低，三废较少，目标产物含量和收率都很高，适用于工业化生产。
• Highly efficient chemo- and regioselective silylation of –OH groups and cyanosilylation of aldehydes promoted by TiCl2(OTf)–SiO2 as a new recyclable catalyst
  作者：Habib Firouzabadi、Nasser Iranpoor、Soghra Farahi

  DOI：10.1016/j.jorganchem.2009.08.009

  日期：2009.11

  TiCl2(OTf)-SiO2 as an easy handling recyclable catalyst was applied for trimethylsilylation of diethyl alpha-hydroxyphosphonates, alcohols and phenols with high selectivity using HMDS as a silylating agent. Cyanotrimethylsilyl ethers were also obtained in excellent yields from treatment of aldehydes with TMSCN in the presence of this catalyst. (C) 2009 Elsevier B.V. All rights reserved.