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ytterbium(III) isopropoxide

中文名称
——
中文别名
——
英文名称
ytterbium(III) isopropoxide
英文别名
ytterbium(III) propan-2-olate;ytterbium isopropoxide;[Yb(OiPr)3]
ytterbium(III) isopropoxide化学式
CAS
——
化学式
C9H21O3Yb
mdl
——
分子量
350.304
InChiKey
RLSGBLLYSSFJEG-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):
    -0.24
  • 重原子数:
    5.0
  • 可旋转键数:
    0.0
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    1.0
  • 拓扑面积:
    23.06
  • 氢给体数:
    0.0
  • 氢受体数:
    1.0

反应信息

  • 作为反应物:
    描述:
    参考文献:
    名称:
    Preparation and some reactions of alkoxides of gadolinium and erbium
    摘要:
    DOI:
    10.1021/ic50093a025
  • 作为产物:
    描述:
    正丁基锂 作用下, 生成 ytterbium(III) isopropoxide
    参考文献:
    名称:
    镧系元素 (III) 醇盐作为从丙酮氰醇快速转移氢氰化为醛和酮的新型催化剂
    摘要:
    催化量的镧系元素 (III) 醇盐促进了从丙酮氰醇到几种醛和酮的快速转氢氰化反应,以提供相应的氰醇。
    DOI:
    10.1246/cl.1993.375
  • 作为试剂:
    描述:
    反式肉桂醛硝基甲烷ytterbium(III) isopropoxide 作用下, 以 四氢呋喃甲醇 为溶剂, 反应 48.0h, 以81%的产率得到
    参考文献:
    名称:
    Design of C2-symmetric salen ligands and their Co(II)- or Yb(III)-complexes, and their role in the reversal of enantioselectivity in the asymmetric Henry reaction
    摘要:
    Reversal of enantioselectivity in asymmetric Henry reactions was achieved with novel chiral C-2-symmetric salen ligands bearing morpholine moieties by changing the Lewis acid center from Co(II) to Yb(III). The possible transition state models were supported by mass spectrometry experiments. (C) 2014 Elsevier Ltd. All rights reserved.
    DOI:
    10.1016/j.tet.2014.05.085
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文献信息

  • A New and Highly Efficient Asymmetric Route to Cyclic α-Amino Phosphonates:  The First Catalytic Enantioselective Hydrophosphonylation of Cyclic Imines Catalyzed by Chiral Heterobimetallic Lanthanoid Complexes
    作者:Harald Gröger、Yoshinobu Saida、Hiroaki Sasai、Kentaro Yamaguchi、Jürgen Martens、Masakatsu Shibasaki
    DOI:10.1021/ja973872i
    日期:1998.4.1
    The catalytic and enantioselective hydrophosphonylation of cyclic imines is described for the first time. In addition, we have uncovered a new and highly efficient asymmetric approach to cyclic α-amino phosphonates using thiazolines as the imine model component. The desired pharmaceutically interesting phosphonates 5a−e could be synthesized by a heterobimetallic (R)-LnPB-catalyzed (Ln = lanthanoid
    首次描述了环状亚胺的催化和对映选择性膦酰化。此外,我们还发现了一种新的高效不对称方法,使用噻唑啉作为亚胺模型组分来制备环状 α-氨基膦酸。所需的药学上令人感兴趣的膦酸 5a-e 可以通过异双属 (R)-LnPB 催化(Ln = 属,P = ,B = (R) = 联萘酚)CN 双键的膦酰化合成,高达 98%对映体过量和高达 98% 的化学产率。使用其他类型的有机催化剂 (IV) 配合物),反应以适度的对映选择性进行。关于对映选择性和化学产率分别对一系列反应参数(例如系元素和碱属,溶剂、反应温度、压力和催化量)。优化的催化系元素系统“(R)-YbPB (5 mol %)/50 °C/48 h/THF-甲苯 (1:7)...
  • Experimental and Theoretical Studies on the Magnetic Anisotropy in Lanthanide(III)-Centered Fe<sub>3</sub>Ln Propellers
    作者:Luca Rigamonti、Andrea Nava、Marie-Emmanuelle Boulon、Javier Luzon、Roberta Sessoli、Andrea Cornia
    DOI:10.1002/chem.201501400
    日期:2015.8.17
    showed the presence of weak ferromagnetic Fe⋅⋅⋅Ln interactions for derivatives with Tb, Dy, Ho, and Er, and of weak antiferromagnetic or negligible coupling in complexes with Tm and Yb. Alternating current susceptibility measurements showed simple paramagnetic behavior down to 1.8 K and for frequencies reaching 10000 Hz, despite the easy‐axis magnetic anisotropy found in Fe3Dy, Fe3Er, and Fe3Tm by single‐crystal
    化合物[Fe 3 Ln(茶)2(dpm)6 ](Fe 3 Ln; Ln = Tb–Yb,H 3茶=三乙醇胺,Hdpm =二戊酰甲烷)合成为以系元素(III)为中心的四(III)变体单分子磁体(Fe 4),并以晶体形式隔离。Ln = Tb–Tm的化合物是同构的,并显示出晶体学的三重对称性。由两个茶3−配体给出的稀土的配位环境可以描述为具有D 3对称性的二尖形扭曲的三角棱镜。磁测量表明弱磁性的存在⋅⋅⋅衍生物与Tb,Dy,Ho和Er的Ln相互作用,以及与Tm和Yb的复合物中弱反磁或可忽略不计的偶联。交流电磁化率测量显示,在低至1.8 K且频率达到10000 Hz时,顺磁行为简单,尽管通过单晶角分辨磁力分析法在Fe 3 Dy,Fe 3 Er和Fe 3 Tm中发现了易轴磁各向异性。相对论量子化学计算是在Fe 3 Ln(Ln = Tb–Tm)上进行的:Ln 3+的地面J多重峰离子被晶体场分裂
  • Bipyrrolidine salan alkoxide complexes of lanthanides: synthesis, characterisation, activity in the polymerisation of lactide and mechanistic investigation by DOSY NMR
    作者:James Beament、Gabriele Kociok-Köhn、Matthew D. Jones、Antoine Buchard
    DOI:10.1039/c8dt02108b
    日期:——
    systems were very active for the controlled ring-opening polymerisation (ROP) of rac-lactide (LA), under industrially relevant melt conditions and in solution, yielding complete conversion within 5 minutes at [Ln] : [LA] ratios of up to 3000 : 1 in toluene, and at 80 °C, whilst retaining low dispersities (Đ = 1.1). 1H DOSY NMR spectroscopy was employed to monitor polymer growth from the metal centres
    已经用Nd,Sm和Yb制备了四个带有ONNO双吡咯烷saLAn配体的二聚系元素醇盐配合物(L Me H 2 / L t Bu H 2)。取决于属和取代基,这些络合物采用不同的配位几何形状。在研究这些配合物的解降解过程中,还制备,分离和表征了三种二聚体混合的醇盐/氢氧化物和双羟基化合物。尽管具有顺磁性,但1 H NMR和扩散有序光谱法(DOSY)允许进行除元素和单晶X射线衍射分析之外的其他表征。这些系统对于rac的受控开环聚合(ROP)非常活跃-丙交酯LA),在与工业相关的熔融条件下和在溶液中,在[Ln]:[LA]的比例高达3000:1的甲苯中,并在80°C下,在5分钟内产生完全转化,同时保持低分散性(Đ = 1.1)。1 H DOSY NMR光谱用于监测聚合物属原位的生长,并显示出双核催化活性物质。
  • A penta-indium oxo alkoxide cluster with a central 5-co-ordinate oxygen. Preparation and X-ray crystal structure of (InOPr<sup>i</sup>)<sub>5</sub>(µ<sub>2</sub>-OPr<sup>i</sup>)<sub>4</sub>(µ<sub>3</sub>-OPr<sup>i</sup>)<sub>4</sub>(µ<sub>5</sub>-O)
    作者:Donald C. Bradley、Halina Chudzynska、Dario M. Frigo、Michael B. Hursthouse、Muhammed A. Mazid
    DOI:10.1039/c39880001258
    日期:——
    The X-ray crystal structure of (InOPri)5(µ2-OPri)4(µ3-OPri)4(µ5-O) reveals a square-pyramidal arrangement of indium atoms about a central oxygen; five of the alkoxo groups are terminal, four are µ2 about the basal metals, and four are µ3 about the triangular faces of the pyramid; the geometry about each metal is highly distorted octahedral.
    (InOPri)5(µ2-OPri)4(µ3-OPri)4(µ5-O)的X射线晶体结构揭示了原子围绕中心原子呈正方形字塔状排列;五个烷基团是末端基团,四个是围绕碱土属的µ2基团,四个是围绕字塔三角面的µ3基团;围绕每个属的原子呈高度扭曲的八面体结构。
  • 不斉合成触媒原料用希土類アルコキシド溶液およびその製造法。
    申请人:——
    公开号:JP2005120062A
    公开(公告)日:2005-05-12

    PROBLEM TO BE SOLVED: To provide a rare earth alkoxide solution for an asymmetric synthetic catalyst material exerting stable high catalytic activity, and to provide a method for production thereof.

    SOLUTION: This method comprises obtaining a crude rare earth alkoxide solution by reacting a rare earth metal and an alcohol or reacting a rare earth metal chloride and an alkali metal alkoxide in an alcohol-containing solvent, exchanging the alcohol or solvent to a 6-10C aromatic or 5-12C saturated hydrocarbon solvent without completely removing the alcohol or solvent to dry, filtering the resulting solution and adjusting its concentration to produce the rare earth alkoxide solution having high catalytic activity and high reproducibility.

    COPYRIGHT: (C)2005,JPO&NCIPI

    要解决的问题:提供一种稀土醇盐溶液,用于对不对称合成催化剂材料施加稳定高催化活性,并提供其制备方法。 解决方案:该方法包括通过将稀土属和醇反应或将稀土化物和碱属醇盐在含醇溶剂中反应来获得原始稀土醇盐溶液,将醇或溶剂交换为6-10C芳香烃或5-12C饱和烃溶剂,而不完全去除醇或溶剂以干燥,过滤所得溶液并调整其浓度,以产生具有高催化活性和高再现性的稀土醇盐溶液。 版权所有:(C)2005,JPO&NCIPI
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