di-μ-chlorobis[1,2,3-η-4-phenyl-2-butenyl]dipalladium | 33197-68-1

• 英文名称: di-μ-chlorobis[1,2,3-η-4-phenyl-2-butenyl]dipalladium
• CAS: 33197-68-1
• 化学式: C₂₀H₂₂Cl₂Pd₂
• 分子量: 546.141
• InChiKey: MGHBGYBXCYHJEW-KWEVOUSJSA-L

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• sp3杂化的碳原子比例：
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反应信息

• 作为产物：
  描述：

  sodium tetrachloropalladate(II) 、 4-chloro-1-phenyl-2-butene 以78%的产率得到di-μ-chlorobis[1,2,3-η-4-phenyl-2-butenyl]dipalladium
  参考文献：
  名称：

  1,4-Carbosilylation of 1,3-Dienes via Palladium Catalyzed Three-Component Coupling Reaction

  摘要：

  Three-component coupling reaction of acid chlorides, organodisilanes, and 1,3-dienes achieves 1,4-carbosilylation of the 1,3-dienes to afford allylic silanes as the product. Bis(dibenzylideneacetone)palladium, a naked Pd(0) complex without donating ligand, showed high catalytic activity. A carbon and a silicon substituent are introduced at 1- and 4-positions of the 1,3-dienes regio- and stereoselectively with concomitant decarbonylation of the acid chlorides. A wide variety of allylic silanes are synthesized in high yields from these easily accessible substrates. On the other hand, a bully acid chloride such as adamantane-1-carboxylic acid chloride did not undergo the decarbonylation reaction but afforded allylic silanes containing acyl functionality. In all these reactions, transmetalation of the disilanes with eta(3)-allylchloropalladium intermediates might be a critical step in the catalytic cycle. As a model reaction for the transmetalation, reaction of di-mu-chlorobis[(1,2,3-eta)-4-phenyl-2-butenyl]dipalladium with disilanes was carried out. Although intermediate eta(3)-allylsilylpalladium species could not be detected, the corresponding allylic silanes, silyl chlorides, and Pd(0) metal were formed during the reaction. Furthermore, a similar three-component coupling reaction using aryl iodides, organosilylstannanes, and dienes also proceeded. However, the selectivity and the yield decreased considerably.

  DOI：

  10.1021/ja00144a005