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Pd(DBPMB)(DBA) | 230978-02-6

中文名称
——
中文别名
——
英文名称
Pd(DBPMB)(DBA)
英文别名
ditert-butyl-[[2-(ditert-butylphosphanylmethyl)phenyl]methyl]phosphane;1,5-diphenylpenta-1,4-dien-3-one;palladium
Pd(DBPMB)(DBA)化学式
CAS
230978-02-6
化学式
C17H14O*C24H44P2*Pd
mdl
——
分子量
735.278
InChiKey
MILUAOCPJHYBTH-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    12.82
  • 重原子数:
    45.0
  • 可旋转键数:
    4.0
  • 环数:
    4.0
  • sp3杂化的碳原子比例:
    0.44
  • 拓扑面积:
    17.07
  • 氢给体数:
    0.0
  • 氢受体数:
    1.0

反应信息

  • 作为反应物:
    描述:
    Pd(DBPMB)(DBA)丙酰氯乙醚 为溶剂, 生成
    参考文献:
    名称:
    Characterization and Dynamics of [Pd(L−L)H(solv)]+, [Pd(L−L)(CH2CH3)]+, and [Pd(L−L)(C(O)Et)(THF)]+ (L−L = 1,2-(CH2PBut2)2C6H4):  Key Intermediates in the Catalytic Methoxycarbonylation of Ethene to Methylpropanoate
    摘要:
    A detailed spectroscopic study has allowed the solution structure and dynamic properties of all the intermediates in the Pd-catalyzed methoxycarbonylation of ethene to be established. [Pd(L-L)H(solv)](-) 1 (L-L = 1,2-(CH2PBu2t)(2)C6H4; solv = MeOH, 1a; (PrOH)-O-n, 1b; THF, 1c; EtCN, 1d) is static, and the two inequivalent P atoms do not become equivalent through solvent exchange over all the temperatures studied. [Pd(L-L)(CH2CH3)](+), 2, contains a strong beta-agostic C-H interaction which is remarkably stable and is not displaced even in strongly coordinating solvents such as EtCN. C-alpha and C-beta Of the ethyl group in 2 become equivalent via a stereospecific interchange involving [Pd(L-L)H(eta(2)-C2H4)](+) without making the two P atoms equivalent; at higher temperatures these two inequivalent P atoms do become equivalent probably via a T-shaped intermediate. For [Pd(L-L)(C(O)Et)(solv)](+), 6, there is no beta-agostic C-H interaction and multiple C-13-labeling of the C(O)Et group shows that the inequivalent P atoms become equivalent via movement of the intact C(O)Et group. The crystal structure of the related complex [Pd(L-L)(C(O)Et)Cl] cocrystallized with dibenzylacetone has been determined.
    DOI:
    10.1021/om010938g
  • 作为产物:
    参考文献:
    名称:
    用于烯烃烷氧基羰基化的最先进 Pd(II) 催化剂在溶液中的(原位)光谱研究
    摘要:
    已详细研究了用于烯烃烷氧基羰基化的带有吡啶基取代的二膦的均相 Pd 配合物的组成,并通过(原位)NMR 和 IR 光谱对其进行了表征。溶液中可检测到的静息态复合物的类型为 [(P ∩ PN)Pd II (O 3 SR)](O 3 SR)。X 射线晶体学和 NMR 光谱学的结果证实了氮原子与 Pd( II ) 中心的关键配位。原位从较高浓度的不同 Pd 前体开始形成催化剂会导致混合物含有相同类型的静止态络合物,但含量不同。在催化条件下,使用选定的预催化剂观察到催化活性略有不同。因此,确切的反应条件显然对催化剂的形成过程和催化性能有影响。在乙烯和一氧化碳存在的较高 Pd 浓度下,相应的磺酸根络合物也代表了主要的可检测物种。
    DOI:
    10.1039/d0cy02248a
  • 作为试剂:
    描述:
    乙烯氘代甲醇-d一氧化碳Pd(DBPMB)(DBA) 甲烷磺酸 作用下, 80.0 ℃ 、1.0 MPa 条件下, 反应 2.0h, 生成 丙酸甲酯2-deuterio-propionic acid methyl ester 、 Methyl 3-deuteriopropanoate
    参考文献:
    名称:
    Deuterium labelling evidence for a hydride mechanism in the formation of methyl propanoate from carbon monoxide, ethene and methanol catalysed by a palladium complex
    摘要:
    在由 [Pd(DBPMB)(DBA)] 原位制备的催化剂存在下,乙烯与 CO 在 CH3OD 中反应(DBPMB = 1,2-双[(二叔丁基)膦甲基]苯,DBA = 二亚苄基丙酮)与甲磺酸在良好气体混合的条件下得到CH2DCH2CO2Me和CH3CHDCO2Me的1∶1混合物,且CH3OD中没有掺入H。如果气体混合效率较低,则丙酸甲酯的乙基中会掺入 0-5 个 D 原子,CH3OD 在整个反应过程中会交换,产生越来越多的 CH3OH,并且随着反应时间的推移,氘化程度较低的产物会略有增加。还观察到 D 大量掺入未反应的乙烯中。这些结果根据氢化物机理进行解释,在良好混合的条件下各个步骤的速率为: 可逆的 H 迁移 配位乙烯>CO配位≫C2H4交换>H/D交换。
    DOI:
    10.1039/b201514e
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文献信息

  • PROCESS FOR THE CARBONYLATION OF AN ETHYLENICALLY UNSATURATED COMPOUND AND A CATALYST SYSTEM
    申请人:Eastham Graham Ronald
    公开号:US20100197958A1
    公开(公告)日:2010-08-05
    A process for the carbonylation of an ethylenically unsaturated compound comprising the step of reacting said compound with carbon monoxide in the presence of a co-5 reactant having a mobile hydrogen atom and a catalyst system is described. The catalyst system is obtainable by combining: (a) a metal of Group 8, 9 or 10 or a suitable compound thereof; (b) a ligand of general formula (I): and c) optionally, a source of anions. The invention is characterised in that the catalyst system includes an enhancer compound comprising an aromatic ring or ring system substituted by at least one hydroxyl group wherein the hydroxyl group pKa at 25° C. is greater than 3.0 and less than 9.1, the said enhancer compound excluding 3-quinolinol. Catalyst systems for use with the enhancer compound are described as are a method of increasing the efficacy of a catalyst system for the carbonylation of ethylenically unsaturated compounds and a method of increasing the rate of carbonylation of an ethylenically unsaturated compound comprising the step of adding such a compound to the reaction.
    本发明涉及一种用于羰基化具有乙烯基不饱和化合物的方法,包括在具有移动氢原子的共反应剂和催化剂体系存在下,将该化合物与一氧化碳反应的步骤。所述催化剂体系可通过组合以下成分获得:(a)第8、9或10族属或其适当化合物;(b)一般式(I)的配体;以及(c)可选地,阴离子源。本发明的特点在于,催化剂体系包括增强剂化合物,该化合物包括由至少一个羟基取代的芳香环或环系,其中该羟基在25℃时的pKa大于3.0且小于9.1,所述增强剂化合物不包括3-喹啉。本发明还描述了用于增强剂化合物的催化剂体系,以及增加用于羰基化乙烯基不饱和化合物的催化剂体系效力和增加羰基化乙烯基不饱和化合物的反应速率的方法。
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