Pd(triphenylphosphine)2(2,5-dichloro-3-methoxy-1,4-benzoquinolinyl)Cl | 944278-47-1

• 英文名称: Pd(triphenylphosphine)2(2,5-dichloro-3-methoxy-1,4-benzoquinolinyl)Cl
• 英文别名: Pd(PPh3)2(C6Cl2O2OMe)Cl
• CAS: 944278-47-1
• 化学式: C₄₃H₃₃Cl₃O₃P₂Pd
• 分子量: 872.46
• InChiKey: FKVJSQIFHLFWKC-UHFFFAOYSA-M

反应信息

• 作为产物：
  描述：

  甲醇 、 三苯基膦 、 palladium diacetate 、 四氯苯醌 在 CO 作用下， 以 甲醇 为溶剂， 生成 Pd(triphenylphosphine)2(2,5-dichloro-3-methoxy-1,4-benzoquinolinyl)Cl
  参考文献：
  名称：

  Mechanism of the oxidative carbonylation of terminal alkynes at the ≡C-H bond in solutions of palladium complexes

  摘要：

  The formation mechanism of the active catalyst in the oxidative carbonylation of terminal alkynes at the iC-H bond has been investigated for the catalytic system Pd(OAc)(2)-PPh3-p-benzoquinone (Q)-MeOH. It has been demonstrated by NMR spectroscopy, X-ray crystallography, and kinetic measurements that the catalytically active palladium is in the oxidation state 0 and is bound into complexes stabilized by p-benzoquinone (PdL(2)Q, where L = PPh3). A mechanism is suggested for the catalytic process, which includes the formation of the complex PdL(2)Q, the oxidative addition of the alkyne to this complex at the C-H bond, the insertion of CO into the Pd-C bond, and steps in which hydride hydrogen is intramolecularly transferred to the p-quinone.

  DOI：

  10.1134/s0023158407020073