[Pd(η3-2-MeC3H4)(pyridine)2]BF4 | 106250-28-6

• 英文名称: [Pd(η3-2-MeC3H4)(pyridine)2]BF4
• 英文别名: bis(pyridine){(1,2,3-η)-2-methyl-2-propenyl}palladium tetrafluoroborate
• CAS: 106250-28-6
• 化学式: BF₄*C₁₄H₁₇N₂Pd
• 分子量: 406.527
• InChiKey: BGURKFZZIATHNI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
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反应信息

• 作为产物：
  描述：

  (pyridine)(triphenylphosphine){(1,2,3-η)-2-methyl-2-propenyl}palladium tetrafluoroborate 以 not given 为溶剂， 生成 bis(triphenylphosphine){(1,2,3-η)-2-methyl-2-propenyl}palladium tetrafluoroborate 、 [Pd(η3-2-MeC3H4)(pyridine)2]BF4
  参考文献：
  名称：

  Åkermark, Björn; Krakenberger, Bertil; Hansson, Sverker, Organometallics, 1987, vol. 6, # 3, p. 620 - 628

  摘要：

  DOI：

文献信息

• Equilibrium studies of α-diimine displacement in cationic allylpalladium(<scp>II</scp>) complexes by monodentate N-donors and the mechanism of allyl amination by triethylamine and pyridine
  作者：Luciano Canovese、Fabiano Visentin、Paolo Uguagliati、Francesca Di Bianca、Simonetta Antonaroli、Bruno Crociani

  DOI：10.1039/dt9940003113

  日期：——

  In the cationic complexes [Pd(eta3-allyl)(L-L)]ClO4 [L-L = 1,2-bis(imino)ethanes or 2-(iminomethyl)-pyridines] the chelated alpha-diimine was rapidly and reversibly displaced by secondary amines (N-methylaniline, morpholine or piperidine), triethylamine and 4-substituted pyridines. The observed equilibrium constants K(e) increased with increasing basicity and decreasing steric requirements of the entering N-donor. They strongly depend on the alpha-diimine and decrease in the order RN=CHCH=NR much-greater-than RN=C(Me)C(Me)=NR almost-equal-to NC5H4(CH=NR)-2 (R = C6H4OMe-4). The cationic complex [Pd(eta3-C3H5)NC5H4(CH=NC6H4OMe-4)-2}]+ underwent a slow allyl amination by triethylamine or pyridine (L') in the presence of fumaronitrile (fn), yielding [Pd(eta2-fn)NC5H4(CH=NC6H4OMe-4)-2}] and Et3N+CH2CH=CH2 or C5H5N+CH2CH=CH2. Kinetic studies showed that the pseudo-first-order rate constants for amination (k(obs)) are given by k(obs) = k2[L'], suggesting a direct bimolecular attack of L' on the eta3-allyl ligand. Amination hardly proceeds in the presence of the less-activated olefin dimethyl fumarate (dmf). The pi-accepting properties of the olefinic ligands play an important role also in the reaction of Et3N+CH2CH=CH2 or C5H5N+CH2CH=CH2 with [Pd(eta2-olefin)NC5H4(CH=NC6H4OMe-4)-2}] (olefin = fn or dmf), i.e. the reverse of the amination reaction.