Phenyl-di-m-tolyl-phosphin | 18803-08-2

• 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: Phenyl-di-m-tolyl-phosphin
• 英文别名: Phosphine, bis(3-methylphenyl)phenyl-；bis(3-methylphenyl)-phenylphosphane
• CAS: 18803-08-2
• 化学式: C₂₀H₁₉P
• 分子量: 290.345
• InChiKey: KQWVREMBQSAIGY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.3
• 重原子数：
  21
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.1
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  Phenyl-di-m-tolyl-phosphin 在 双氧水 作用下， 以 四氢呋喃 、 水 为溶剂， 以96%的产率得到phenyldi(m-tolyl)phosphine oxide
  参考文献：
  名称：

  冻结三芳基氧化膦构型的意外和简便方法

  摘要：

  构型稳定的三芳基膦氧化物对于手性信息转移的反应很重要。除了引入大的取代基以抑制室温下螺旋性的快速反转以外，还适合使用第二种手性元素，该第二种手性元素在三芳基氧化膦中诱导手性，因此仅采用一种构型。关于手性转移，测试了C 2对称咪唑环肽以获得构型稳定的氧化膦。密度泛函计算显示三种可能的三芳基膦氧化物（MMM）-1，（PPP）-1和（MP）-1的能量几乎相等。出人意料的是，合成后溶液中仅存在MMM构象异构体，其构型稳定性已通过可变温度和2D NMR实验以及CD测量证明。根据DFT计算的结果，不能用热力学方法来解释稳定（MMM）-1的形成，只能通过动力学反应控制来解释。冻结三芳基膦氧化物的构象的这一概念将来可用于容易地制备构型稳定的立体异构螺旋桨状化合物。

  DOI：

  10.1002/chem.201002073
• 作为产物：
  描述：

  苯基二氯化磷 、 M-TOLYLMAGNESIUM BROMIDE 生成 Phenyl-di-m-tolyl-phosphin
  参考文献：
  名称：

  磷的有机衍生物的立体化学。第三部分 具有分子不对称性的螺环phospho盐的合成与旋光拆分

  摘要：

  DOI：

  10.1039/jr9550004107

文献信息

• Versatile Visible‐Light‐Driven Synthesis of Asymmetrical Phosphines and Phosphonium Salts
  作者：Percia Beatrice Arockiam、Ulrich Lennert、Christina Graf、Robin Rothfelder、Daniel J. Scott、Tillmann G. Fischer、Kirsten Zeitler、Robert Wolf

  DOI：10.1002/chem.202002646

  日期：2020.12.9

  Asymmetrically substituted tertiary phosphines and quaternary phosphonium salts are used extensively in applications throughout industry and academia. Despite their significance, classical methods to synthesize such compounds often demand either harsh reaction conditions, prefunctionalization of starting materials, highly sensitive organometallic reagents, or expensive transition‐metal catalysts. Mild

  不对称取代的叔膦和季鏻盐广泛应用于工业界和学术界。尽管它们很重要，但合成此类化合物的经典方法通常需要苛刻的反应条件、起始材料的预官能化、高度敏感的有机金属试剂或昂贵的过渡金属催化剂。因此，尽管目前人们很感兴趣，但温和、实用的方法仍然难以捉摸。在这里，我们描述了一种可见光驱动的方法，由仲膦和伯膦形成这些产品。使用廉价的有机光催化剂和蓝光照射，芳基膦可以使用市售的有机卤化物进行烷基化和芳基化。此外，相同的有机催化剂可用于在单个反应步骤中将白磷（P 4 ）直接转化为对称芳基膦和鏻盐，这在以前只能使用贵金属催化来实现。
• CURING ACCELERATING COMPOUND-SILICA COMPOSITE MATERIAL, METHOD FOR PRODUCING CURING ACCELERATING COMPOUND-SILICA COMPOSITE MATERIAL, CURING ACCELERATOR, CURABLE RESIN COMPOSITION, AND ELECTRONIC COMPONENT DEVICE
  申请人：Nakamura Shinya

  公开号：US20090062460A1

  公开（公告）日：2009-03-05

  The present invention relates to a curing accelerating compound-silica composite material capable of giving excellent storage stability to a curable resin composition, which is obtained by subjecting one or more compounds selected from compounds represented by the general formula (I-1) below and partial condensates thereof to a sol-gel reaction in the presence of a curing accelerating compound and water; a curable resin composition comprising the same; and an electronic component device comprising a device sealed with the curable resin composition. R 1 n SiR 2 (4-n) (I-1) wherein n is 0 or 1; R 1 is selected from a hydrogen atom and a C1 to C18 substituted or unsubstituted hydrocarbon group and may form a ring structure with R 2 ; R 2 s represent a functional group reactive with a phenolic hydroxyl group, are selected independently from a halogen atom, a hydroxyl group, a C1 to C18 optionally substituted oxy group, a C0 to C18 optionally substituted amino group, and a C2 to C18 optionally substituted carbonyloxy group, all R 2 s may be the same or different from one another, and two or more R 2 s may be bound to each other to form a ring structure.

  本发明涉及一种固化促进剂-二氧化硅复合材料，能够为可固化树脂组分提供优异的储存稳定性。所述复合材料通过在固化促进剂和水的存在下，将下式（I-1）所表示的化合物之一或多个部分缩聚物进行溶胶-凝胶反应而获得；所述化合物如下：R1nSiR2(4-n)(I-1)，其中n为0或1；R1为氢原子和C1到C18取代或未取代的烃基，也可以与R2形成环状结构；R2表示与酚羟基反应的官能团，可独立选择自卤素原子、羟基、C1到C18可选取代的氧基团、C0到C18可选取代的氨基团和C2到C18可选取代的羰基氧基团，所有R2可以相同也可以不同，两个或更多的R2可以结合在一起形成环状结构。本发明还涉及一种包含该复合材料的可固化树脂组分，以及一种包括用该可固化树脂组分封装的电子元器件装置。
• PROPYLENE BLOCK COPOLYMER AND PROPYLENE RESIN COMPOSITION
  申请人：Japan Polychem Corporation

  公开号：EP1002814A1

  公开（公告）日：2000-05-24

  Disclosed are a propylene polymer composition possessing excellent balance among rigidity and low warpage, resistance to deterioration caused by thermal oxidation during processing, weathering resistance, antistatic properties, and low bleeding properties, and a propylene resin composition which can easily produce molded products having excellent balance between rigidity and impact resistance (particularly low-temperature impact resistance) or heat resistance. The propylene polymer composition and the propylene resin composition comprise a propylene block copolymer consisting essentially of the following blocks (a) and (b) and having a melt flow rate of 0.1 to 200 g/10 min: block (a): a polymer block of a homopolymer of propylene or a random copolymer of propylene with a comonomer selected from the group consisting of ethylene and C4-C20 α -olefins, the content of the comonomer being not more than 10% by mole; and block (b): a polymer block of a random copolymer of propylene with at least one comonomer selected from the group consisting of ethylene and C4-C20 α -olefins, the content of the comonomer being 10 to 80% by mole, the average chain length of the comonomer block and the gross average chain length of the comonomer having a relationship represented by formula (I)nb ≦ n + 1.5 wherein nb represents the average chain length of the comonomer block; and n represents the gross average chain length of the comonomer.

  本发明公开了一种丙烯聚合物组合物，该组合物在刚性和低翘曲性、抗加工过程中的热氧化引起的劣化、耐候性、抗静电性和低渗出性之间具有极佳的平衡；还公开了一种丙烯树脂组合物，该组合物可以轻松生产出在刚性和抗冲击性（尤其是抗低温冲击性）或耐热性之间具有极佳平衡的模塑产品。丙烯聚合物组合物和丙烯树脂组合物包括主要由以下嵌段（a）和（b）组成的丙烯嵌段共聚物，其熔体流动速率为 0.1 至 200 克/10 分钟： 嵌段(a)：丙烯均聚物或丙烯与选自乙烯和 C4-C20 α 烯烃组成的共聚单体的无规共聚物的聚合物嵌段，共聚单体的含量不超过 10%（按摩尔计）；以及 嵌段(b)：丙烯与至少一种共聚单体的无规共聚物聚合物嵌段，共聚单体选自乙烯和 C4-C20 α - 烯烃组成的组，共聚单体的含量为 10%至 80%（以摩尔计），共聚单体嵌段的平均链长和共聚单体的总平均链长具有式(I)nb ≦ n + 1.5 所表示的关系，其中 nb 代表共聚单体嵌段的平均链长；n 代表共聚单体的总平均链长。
• INCREASED EFFICIENCY OF DESULFURIZATION REAGENTS
  申请人：ARLANXEO Deutschland GmbH

  公开号：EP3135712A1

  公开（公告）日：2017-03-01

  Polymer masterbatch compositions, the production and use thereof, as well as vulcanizable rubber compounds comprising these masterbatch compositions, and their use for the production of moldings in the production of tires.

  聚合物母料组合物、其生产和使用方法，以及由这些母料组合物组成的可硫化橡胶化合物及其在轮胎生产中的模塑生产用途。
• Triarylphosphines as Aryl Donors for Pd(II)-Catalyzed Aromatic Coupling of Oxabenzonorbornadienes
  作者：Hui Zhou、Jixing Li、Huameng Yang、Chungu Xia、Gaoxi Jiang

  DOI：10.1021/acs.orglett.5b02366

  日期：2015.9.18

  A new approach was developed for Pd(II)-catalyzed aromatic coupling of oxabenzonorbornadienes with triarylphosphines as both ligands and aryl donors. Diverse functional groups including halo- (F-, Cl-, and Br-), CF3-, and furyl groups are well tolerated. For unsymmetrical triarylphosphines, the migration ability of aryls is consistent with the electronic property of substituents and maintains the order EDG-Ar > H-Ar > EWD-Ar (EDG means electron-donating group, EWG means electron-withdrawing group). A preliminary mechanistic study was also disclosed.