| 126111-73-7

• CAS: 126111-73-7
• 化学式: C₂₀H₁₈Cl₂N₄Zn₂
• 分子量: 516.076
• InChiKey: ROTCWWRDMINRTR-UHFFFAOYSA-L

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为反应物：
  描述：

  在 吡啶 、 三氯化磷 作用下， 以 四氢呋喃 为溶剂， 生成 2-(dichlorophosphaneyl)pyridine
  参考文献：
  名称：

  用于末端炔烃烷氧羰基化的多功能单点催化剂

  摘要：

  通过乙烯基官能化的2-吡啶基二苯基膦（2-PyPPh 2）和对-苯乙烯磺酸的共聚反应，通过结合酸性基团和非均相P，N配体，制备出多功能共聚物（PyPPh 2 -SO 3 H @多孔有机聚合物，POPs）溶剂热条件下的酸。使用一系列表征技术评估共聚物的形态和化学结构。与传统的均相Pd（OAc）2 / 2-PyPPh 2 /对甲苯磺酸催化剂相比，共聚物负载的钯催化剂（Pd–PyPPh 2 –SO 3在相同条件下，H（POPs）对末端炔烃的烷氧基羰基化表现出更高的活性。这种现象可能归因于单中心Pd中心，2-PyPPh 2配体和SO 3 H基团之间的协同作用，出色的溶胀性能以及多孔催化剂对反应物浓度的高富集。另外，该催化剂可以重复使用至少4次而没有任何明显的活性损失。出色的催化反应性和良好的循环利用性能使其成为工业应用中有吸引力的催化剂。这项工作为将来的高级多功能多孔有机聚合物铺平了道路，作为新型的多相催化平台。

  DOI：

  10.1002/cssc.201600660
• 作为产物：
  描述：

  2-溴吡啶 、 zinc(II) chloride 在 吡啶 、 正丁基锂 作用下， 以 四氢呋喃 为溶剂， 生成
  参考文献：
  名称：

  The 2V-P,N polymer supported palladium catalyst for methoxycarbonylation of acetylene

  摘要：

  Heterogenization of homogeneous catalyst by immobilizing complex on the surface of polymer supports promotes the design of the catalysts which combine the advantages of heterogeneous and homogeneous catalysts. The porous 2-vinyl-functional diphenyl-2-pyridylphosphine (2V-P,N) polymer (POL-2V-P,N) was successfully synthesized under solvothermal conditions. The POL-2V-P,N polymer was characterized by nitrogen physisorption, thermogravimetry (TG), scanning electron microscope (SEM) and transmission electron microscopy (TEM). The heterogenized homogeneous Pd/POL-2V-P,N catalyst was synthesized by immobilizing Pd(OAc)(2) on the POL-2V-P,N, which was used as not only support but also as ligands. The catalyst was investigated by means of P-31 NMR, X-ray absorption fine structure (EXAFS), X-ray photoelectron spectroscopic (XPS) and FT-IR and tested for the methoxycarbonylation of acetylene. According to the results of P-31 NMR, XPS and EXAFS, there existed coordination bonds between palladium and the exposed phosphorous and nitrogen atoms of,the porous POL-2V-P,N support. The XPS and FT-IR results showed that Pd-0 species were present on the Pd/POL-2V-P,N catalyst. The heterogenized Pd/POL-2V-P,N palladium complex catalyst with high surface area and large pore volume displayed excellent activity for the methoxycarbonylation of acetylene as compared with the corresponding homogeneous palladium diphenyl-2-pyridylphosphine complex (Pd-P,N) under the same conditions. The used Pd/POL-2V-P,N catalyst also exhibited excellent activity under the same conditions. In addition, the hot filtration tests indicated that the reaction occurred in a heterogeneous way. (C) 2015 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.molcata.2015.12.025

文献信息

• The first insoluble polymer-bound palladium complexes of 2-pyridyldiphenylphosphine: highly efficient catalysts for the alkoxycarbonylation of terminal alkynes
  作者：Simon Doherty、Julian G. Knight、Michael Betham

  DOI：10.1039/b512556a

  日期：——

  Palladium complexes of 2-pyridyldiphenylphosphine anchored on polystyrene, polymethylmethacrylate and styrene-methylmethacrylate copolymer form highly active heterogeneous catalysts for the alkoxycarbonylation of terminal alkynes with activities approaching those obtained under homogeneous conditions.

  锚定在聚苯乙烯，聚甲基丙烯酸甲酯和苯乙烯-甲基丙烯酸甲酯共​​聚物上的2-吡啶基二苯基膦的钯络合物形成用于末端炔烃烷氧基羰基化的高活性非均相催化剂，其活性接近在均相条件下获得的活性。