| 1184954-38-8

• CAS: 1184954-38-8
• 化学式: C₂₈H₃₄N₃*F₆P
• 分子量: 557.562
• InChiKey: ZUXQNACQWJELPH-UHFFFAOYSA-N

反应信息

• 作为反应物：
  描述：

  bis(η3-allyl-μ-chloropalladium(II)) 、 在 triethylamine 作用下， 以 二氯甲烷 为溶剂， 以77%的产率得到
  参考文献：
  名称：

  Rigid, Sterically Diverse N-Heterocyclic Carbene-Pyridine Chelates: Synthesis, Mild Palladation, and Palladium-Catalyzed Allylic Substitution

  摘要：

  A series of four 1-(pyridin-2-yl)benzimidazolium salts was synthesized as precursors to rigid, bidentate N-heterocyclic carbene-pyridine ligands. With the goal of exploring the interplay between steric and electronic asymmetry in catalysis, the ligands are constructed with very small (H, Me) or very bulky (2,6-diisopropylphenyl, 2,4,6-triisopropylphenyl) groups adjacent to the nitrogen and carbon donor atoms. Cationic palladium-allyl complexes were synthesized under mild conditions, using triethylamine as base and potassium or silver hexafluorophosphate as counterion source. The structures of three complexes were verified using X-ray crystallography. All four palladium complexes were active catalysts for the allylic substitution reaction between allylic carbonates and either sodium diethyl-2-methylmalonate or N-methylbenzylamine, although significant ligand-controlled effects on regioselectivity were not observed tinder the conditions studied.

  DOI：

  10.1021/om900554c