(4-benzyl-phenyl)-phosphonic acid | 330639-00-4

• 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: (4-benzyl-phenyl)-phosphonic acid
• 英文别名: (4-Benzyl-phenyl)-phosphonsaeure；4-Benzyl-phenylphosphinsaeure；(4-Benzylphenyl)phosphonic acid
• CAS: 330639-00-4
• 化学式: C₁₃H₁₃O₃P
• 分子量: 248.218
• InChiKey: WDVVTWOKUYUBFI-UHFFFAOYSA-N

物化性质

• 沸点：
  448.7±48.0 °C(Predicted)
• 密度：
  1.32±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  17
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.08
• 拓扑面积：
  57.5
• 氢给体数：
  2
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (4-benzyl-phenyl)-phosphonic acid 在 potassium permanganate 作用下， 生成 (4-benzoyl-phenyl)-phosphonic acid
  参考文献：
  名称：

  Michaelis, Justus Liebigs Annalen der Chemie, 1901, vol. 315, p. 68

  摘要：

  DOI：
• 作为产物：
  描述：

  4-(phenylmethyl)phenylphosphonic dichloride 在 水 作用下， 生成 (4-benzyl-phenyl)-phosphonic acid
  参考文献：
  名称：

  Michaelis, Justus Liebigs Annalen der Chemie, 1901, vol. 315, p. 68

  摘要：

  DOI：

文献信息

• CARBONIC ACID ESTER AND MAGNETIC RECORDING MEDIUM
  申请人：IMAKUNI Akira

  公开号：US20080241599A1

  公开（公告）日：2008-10-02

  A carbonic acid ester is provided that is represented by the formula below and has a melting point of no greater than 0° C. (In the formula, R 1 and R 2 independently denote a saturated hydrocarbon group, R 1 is a branched chain, and R 2 is a straight or branched chain). There is also provided a magnetic recording medium that includes a non-magnetic support and, above the support, at least one magnetic layer including a ferromagnetic powder dispersed in a binder, the magnetic layer including the carbonic acid ester. Furthermore, there is provided a magnetic recording medium including a support and, above the support, a non-magnetic layer including a non-magnetic powder dispersed in a binder, and above the non-magnetic layer, at least one magnetic layer including a ferromagnetic powder dispersed in a binder, the non-magnetic layer and/or the magnetic layer including the carbonic acid ester.

  提供一种碳酸酯，其化学式如下，并且其熔点不大于0°C。（在化学式中，R1和R2分别表示饱和碳氢基团，R1是支链，R2是直链或支链）。还提供了一种磁记录介质，包括非磁性支撑物，在支撑物上方至少有一层包括铁磁粉末分散在粘合剂中的磁性层，该磁性层包括碳酸酯。此外，还提供了一种磁记录介质，包括支撑物，在支撑物上方有一层包括非磁性粉末分散在粘合剂中的非磁性层，以及在非磁性层上方，至少有一层包括铁磁粉末分散在粘合剂中的磁性层，其中非磁性层和/或磁性层包括碳酸酯。
• CARBONIC ACID ESTER, PRODUCTION PROCESS THEREFOR, AND MAGNETIC RECORDING MEDIUM
  申请人：MORI Masahiko

  公开号：US20080020243A1

  公开（公告）日：2008-01-24

  A process for producing a carbonic acid ester is provided, the process comprising a step of synthesizing a saturated alkyl carbonic acid ester represented by Formula (1) so as to give the saturated alkyl carbonic acid ester represented by Formula (1) as a crude product and a step of subjecting the crude product to liquid-liquid extraction using a saturated hydrocarbon solvent and a solvent comprising an organic solvent that is not infinitely miscible with the saturated hydrocarbon solvent so as to give the saturated alkyl carbonic acid ester represented by Formula (1) as a purified product (in Formula (1), R 1 and R 2 independently denote a saturated hydrocarbon group provided that the sum of the number of carbons in R 1 and the number of carbons in R 2 is at least 12 but no greater than 50). There are also provided a carbonic acid ester produced by the production process, and a magnetic recording medium comprising a non-magnetic support and, above the non-magnetic support, a magnetic layer comprising a ferromagnetic powder dispersed in a binder, the magnetic layer comprising the carbonic acid ester and having on the surface a number of protrusions that satisfies Formula (2) 0.01≦H 15 /H 10 <0.20   (2) (H 10 denotes the number of protrusions per unit area on the surface of the magnetic layer that have a height of less than 10 nm (number/μm 2 ), and H 15 denotes the number of protrusions per unit area on the surface of the magnetic layer that have a height of 15 nm or greater (number/μm 2 )).

  提供了一种制备碳酸酯的工艺，该工艺包括合成由式（1）表示的饱和烷基碳酸酯的步骤，以便将由式（1）表示的饱和烷基碳酸酯作为粗产品，并使用饱和烃溶剂和不与饱和烃溶剂无限混溶的有机溶剂的溶剂进行液-液萃取的步骤，以便将由式（1）表示的饱和烷基碳酸酯作为纯化产品（在式（1）中，R1和R2独立表示饱和烃基，但R1中碳数和R2中碳数之和至少为12但不大于50）。还提供了通过生产工艺生产的碳酸酯，以及包括非磁性支撑和在非磁性支撑上的磁性层的磁记录介质，其中磁性层包括分散在粘合剂中的铁磁性粉末，磁性层包括碳酸酯，并在表面具有满足公式（2）的许多突起0.01≦H15/H10<0.20（2）（其中H10表示磁性层表面每单位面积具有高度小于10 nm的突起的数量（数量/μm2），而H15表示磁性层表面每单位面积具有高度为15 nm或更高的突起的数量（数量/μm2））。
• Magnetic recording medium and production process therefor
  申请人：Mori Masahiko

  公开号：US20050112410A1

  公开（公告）日：2005-05-26

  A magnetic recording medium is provided that includes a non-magnetic support, and at least one magnetic layer provided above the non-magnetic support, the magnetic layer having a ferromagnetic powder dispersed in a binder, all or part of the binder being a polyurethane resin obtained by a reaction of a polyol and a polyisocyanate, the polyurethane resin having a glass transition temperature (Tg) of 70° C. to 200° C., and part of the polyol being a diol having at least one epoxy group and two hydroxyl groups per molecule. There is also provided a process for producing the magnetic recording medium, the process including a step of kneading the ferromagnetic powder and the polyurethane resin.

  本发明提供了一种磁记录介质，它包括一个非磁性支架和至少一个设置在非磁性支架上方的磁层，磁层具有分散在粘合剂中的铁磁性粉末，粘合剂的全部或部分是由多元醇和多异氰酸酯反应得到的聚氨酯树脂，聚氨酯树脂的玻璃化转变温度（Tg）为70℃至200℃，多元醇的一部分是每分子至少具有一个环氧基团和两个羟基的二元醇。还提供了一种生产磁记录介质的工艺，该工艺包括揉捏铁磁粉末和聚氨酯树脂的步骤。
• Magnetic recording medium
  申请人：Murayama Yuichiro

  公开号：US20050112409A1

  公开（公告）日：2005-05-26

  A magnetic recording medium is provided that includes a non-magnetic support and at least one magnetic layer provided on or above the non-magnetic support, the magnetic layer containing a ferromagnetic powder dispersed in a binder, the binder containing a polyurethane resin having a bridged hydrocarbon structure or a spiro structure, and the ferromagnetic powder containing an acicular ferromagnetic substance having a major axis length of 20 to 50 nm or a tabular ferromagnetic substance having a plate size of 10 to 50 nm. There is also provided the magnetic recording medium wherein it further includes a non-magnetic layer provided between the non-magnetic support and the magnetic layer, the non-magnetic layer containing a non-magnetic powder dispersed in a binder, and the binder of the non-magnetic layer containing a polyurethane resin having a bridged hydrocarbon structure or a spiro structure.
• SULFONIC ACID POLYOL COMPOUND, POLYURETHANE RESIN, POLYURETHANE RESIN FOR MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING MEDIUM
  申请人：OMURA Kazufumi

  公开号：US20090087687A1

  公开（公告）日：2009-04-02

  A compound represented by the Formula below is provided. (in Formula (1), X denotes a divalent linking group, R 1 and R 2 independently denote an alkyl group having 3 or more carbons and having at least one hydroxy group or an aralkyl group having 8 or more carbons and having at least one hydroxy group, the alkyl group and aralkyl group may have a substituent, and M denotes a hydrogen atom or a cation). There is also provided a polyurethane resin obtained by polymerization of a polyisocyanate and a polyol that includes the compound. There is also provided a magnetic recording medium that includes a non-magnetic support and, above the support, at least one magnetic layer including a ferromagnetic powder dispersed in a binder that includes the polyurethane resin. There is also provided a magnetic recording medium that includes a non-magnetic support, above the support at least one non-magnetic layer including a non-magnetic powder dispersed in a binder ( 1 ), and, above the non-magnetic layer, at least one magnetic layer having a ferromagnetic powder dispersed in a binder ( 2 ), in which binder ( 1 ) and/or binder ( 2 ) is the polyurethane resin.