ethyl dibenzylphosphinate | 34679-43-1

• 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: ethyl dibenzylphosphinate
• 英文别名: Ethyl-dibenzylphosphinat；[Benzyl(ethoxy)phosphoryl]methylbenzene
• CAS: 34679-43-1
• 化学式: C₁₆H₁₉O₂P
• 分子量: 274.299
• InChiKey: IPAWXNUPWOLHPO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  19
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  ethyl dibenzylphosphinate 在 吡啶 、 三氟甲磺酸酐 、 水 、 sodium hydroxide 作用下， 以 二氯甲烷 、 乙醚 为溶剂， 反应 2.17h， 以75%的产率得到dibenzylphosphinic acid
  参考文献：
  名称：

  磷（V）化合物的选择性水解形成有机磷单酸

  摘要：

  已经开发了一种用于合成难以捉摸的膦酸、次膦酸和磷酸单酸的无叠氮化物和过渡金属的方法。惰性五价 P( V )-化合物（膦酸盐、次膦酸盐和磷酸盐）被三氟甲磺酸酐 (Tf 2 O)/吡啶体系活化，形成高反应性磷酰吡啶鎓中间体，该中间体经过 H 2 O 的亲核取代以选择性脱保护一个烷氧基基团形成有机磷单酸。

  DOI：

  10.1039/d1ob00881a
• 作为产物：
  描述：

  乙醇 、 dibenzylphosphine oxide 在 (二氯碘)-苯 作用下， 以 二氯甲烷 为溶剂， 反应 1.0h， 以59%的产率得到ethyl dibenzylphosphinate
  参考文献：
  名称：

  二芳基或二烷基膦氧化物与（二卤代碘代）芳烃的直接氧化卤化

  摘要：

  与高价碘试剂（difluoroiodo）甲苯（二芳基二烷基膦或氧化物的氧化卤化p -TolIF 2，1）和（dichloroiodo）苯（PhICl 2，2被报告）。磷的氟化物可以32-75％的产率回收，或者可以将其用EtOH捕集，以通常良好的产率得到相应的次膦酸酯。磷氯化物不易分离，并被乙醇和胺亲核试剂截留，以最高90％的收率得到二芳基或二烷基膦酸膦和次膦酰胺。

  DOI：

  10.1016/j.tetlet.2018.06.044

文献信息

• Direct, oxidative halogenation of diaryl- or dialkylphosphine oxides with (dihaloiodo)arenes
  作者：Jasmin Eljo、Graham K. Murphy

  DOI：10.1016/j.tetlet.2018.06.044

  日期：2018.8

  The oxidative halogenation of diaryl- or dialkylphosphine oxides with the hypervalent iodine reagents (difluoroiodo)toluene (p-TolIF2, 1) and (dichloroiodo)benzene (PhICl2, 2) is reported. Phosphoric fluorides could be recovered in 32–75% yield, or they could be trapped with EtOH to give the corresponding phosphinate in typically good yield. Phosphoric chlorides were not readily isolable, and were

  与高价碘试剂（difluoroiodo）甲苯（二芳基二烷基膦或氧化物的氧化卤化p -TolIF 2，1）和（dichloroiodo）苯（PhICl 2，2被报告）。磷的氟化物可以32-75％的产率回收，或者可以将其用EtOH捕集，以通常良好的产率得到相应的次膦酸酯。磷氯化物不易分离，并被乙醇和胺亲核试剂截留，以最高90％的收率得到二芳基或二烷基膦酸膦和次膦酰胺。
• POLYESTER RESIN COMPOSITIONS, CATALYST FOR POLYESTER PRODUCTION, POLYESTER FILM, AND MAGNETIC RECORDING MEDIUM
  申请人：TORAY INDUSTRIES, INC.

  公开号：EP1550683A1

  公开（公告）日：2005-07-06

  The present invention aims to provide a practical polyester that can be produced substantially without using an antimony compound as a polycondensation catalyst. (I) The present invention provides a polyester resin composition containing, on a weight basis, 30 ppm or less of antimony, 0.5 to 50 ppm of titanium, and 0.1 to 100 ppm of phosphorus, in which the number density of titanium-containing particles, the equivalent circular diameter of which is 1 µm or more, is less than 100/0.02 mg; and (II) The present invention provides a polyester resin composition containing, on a weight basis, 30 ppm or less of antimony, 0.5 to 50 ppm of titanium, and 0.1 to 100 ppm of phosphorus, in which organic polymer particles are contained in amount of 0.1 to 5 wt%, the organic polymer particles having an average particle diameter determined by dynamic light scattering of 0.05 to 3 µm and containing 0.01% or less of coarse particles relative to the total number of the particles, the coarse particles having a diameter at least twice the average particle diameter.

  本发明的目的是提供一种实用的聚酯，这种聚酯基本上可以在不使用锑化合物作为缩聚催化剂的情况下生产。 (I) 本发明提供了一种聚酯树脂组合物，按重量计，含有 30 ppm 或以下的锑、0.5 至 50 ppm 的钛和 0.1 至 100 ppm 的磷，其中等效圆直径为 1 微米或以上的含钛颗粒的数量密度小于 100/0.02 毫克；以及 (II) 本发明提供了一种聚酯树脂组合物，按重量计，含有 30 ppm 或以下的锑、0.5 至 50 ppm 的钛和 0.1 至 100 ppm 的磷，其中等效圆直径为 1 微米或以上的含钛颗粒的数量密度小于 100/0.02 毫克。 (II) 本发明提供了一种聚酯树脂组合物，按重量计，该组合物含有 30 ppm 或以下的锑、0.5 至 50 ppm 的钛和 0.1 至 100 ppm 的磷，其中有机聚合物颗粒的含量为 0.1 至 5 wt%，通过动态光散射法测定，有机聚合物颗粒的平均颗粒直径为 0.05 至 3 µm，相对于颗粒总数，粗颗粒的含量为 0.01% 或更少，粗颗粒的直径至少为平均颗粒直径的两倍。
• Polyester resin compositions, catalyst for polyester production, polyester film, and magnetic recording medium
  申请人：Sakamoto Jun

  公开号：US20050239929A1

  公开（公告）日：2005-10-27

  The present invention aims to provide a practical polyester that can be produced substantially without using an antimony compound as a polycondensation catalyst. (I) The present invention provides a polyester resin composition containing, on a weight basis, 30 ppm or less of antimony, 0.5 to 50 ppm of titanium, and 0.1 to 100 ppm of phosphorus, in which the number density of titanium-containing particles, the equivalent circular diameter of which is 1 μm or more, is less than 100/0.02 mg; and (II) The present invention provides a polyester resin composition containing, on a weight basis, 30 ppm or less of antimony, 0.5 to 50 ppm of titanium, and 0.1 to 100 ppm of phosphorus, in which organic polymer particles are contained in amount of 0.1 to 5 wt %, the organic polymer particles having an average particle diameter determined by dynamic light scattering of 0.05 to 3 μm and containing 0.01% or less of coarse particles relative to the total number of the particles, the coarse particles having a diameter at least twice the average particle diameter.

  本发明的目的是提供一种实用的聚酯，该聚酯基本上可以在不使用锑化合物作为缩聚催化剂的情况下生产。(I) 本发明提供了一种聚酯树脂组合物，按重量计，含有 30 ppm 或以下的锑、0.5 至 50 ppm 的钛和 0.1 至 100 ppm 的磷，其中等效圆直径为 1 μm 或以上的含钛颗粒的数量密度小于 100/0.02 mg；以及 (II) 本发明提供了一种聚酯树脂组合物，按重量计，含有 30 ppm 或以下的锑、0.5至50ppm的钛和0.1至100ppm的磷，其中有机聚合物颗粒的含量为0.1至5重量％，有机聚合物颗粒通过动态光散射测定的平均颗粒直径为0.05至3μm，相对于颗粒总数，含有0.01％或更少的粗颗粒，粗颗粒的直径至少为平均颗粒直径的两倍。
• Polyester resin compositions, polyester film, and magnetic recording medium
  申请人：Yoshimura Hitoshi

  公开号：US20100209735A1

  公开（公告）日：2010-08-19

  A polyester composition produced without using an antimony compound as a polycondensation catalyst and including (I) a composition containing, on a weight basis, 30 ppm or less of antimony, 0.5 to 50 ppm of titanium, and 0.1 to 100 ppm of phosphorus, in which the number density of titanium-containing particles, the equivalent circular diameter of which is 1 μm or more, is less than 100/0.02 mg; and (II) a composition containing, on a weight basis, antimony, titanium and phosphorous as defined above, in which organic polymer particles are contained in amount of 0.1 to 5 wt %, the organic polymer particles having an average particle diameter determined by dynamic light scattering of 0.05 to 3 μm and containing 0.01% or less of coarse particles relative to the total number of the particles, the coarse particles having a diameter at least twice the average particle diameter.
• Catalyst for producing polyesters and polyester resin composition
  申请人：Sakamoto Jun

  公开号：US20120034480A1

  公开（公告）日：2012-02-09

  Polyester composition produced without antimony compound as a polycondensation catalyst including, 30 ppm or less antimony, 0.5-50 ppm titanium, and 0.1-100 ppm phosphorus, the number density of titanium-containing particles having an equivalent circular diameter of 1 μm or more being less than 100/0.02 mg; and a composition as above, containing 0.1-5 wt % organic polymer particles which have an average particle diameter of 0.05-3 μm and contain 0.01% or less of coarse particles which have a diameter at least twice the average particle diameter. Polyester catalyst including a reaction product between at least one of Ti(OR) 4 and Ti(OH) m (OR) 4-m , wherein Rs may be the same or different and each represents a C 2 -C 10 organic group, and m represents an integer of 1-4, and a ligand including nitrogen, sulfur, and/or oxygen as a donor atom, and capable of coordinating with two or more sites.