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2,2'-(1-(4-methoxyphenyl)ethane-1,2-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane)

中文名称
——
中文别名
——
英文名称
2,2'-(1-(4-methoxyphenyl)ethane-1,2-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane)
英文别名
2-[1-(4-Methoxyphenyl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)ethyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane;2-[1-(4-methoxyphenyl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)ethyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
2,2'-(1-(4-methoxyphenyl)ethane-1,2-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane)化学式
CAS
——
化学式
C21H34B2O5
mdl
——
分子量
388.12
InChiKey
VBEQSWZVQOZAGW-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):
    4.5
  • 重原子数:
    28
  • 可旋转键数:
    5
  • 环数:
    3.0
  • sp3杂化的碳原子比例:
    0.71
  • 拓扑面积:
    46.2
  • 氢给体数:
    0
  • 氢受体数:
    5

反应信息

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文献信息

  • Regio‐ and Stereoselective Homologation of 1,2‐Bis(Boronic Esters): Stereocontrolled Synthesis of 1,3‐Diols and Sch 725674
    作者:Alexander Fawcett、Dominik Nitsch、Muhammad Ali、Joseph M. Bateman、Eddie L. Myers、Varinder K. Aggarwal
    DOI:10.1002/anie.201608406
    日期:2016.11.14
    1,2-Bis(boronic esters), derived from the enantioselective diboration of terminal alkenes, can be selectively homologated at the primary boronic ester by using enantioenriched primary/secondary lithiated carbamates or benzoates to give 1,3-bis(boronic esters), which can be subsequently oxidized to the corresponding secondary-secondary and secondary-tertiary 1,3-diols with full stereocontrol. The transformation
    1,2-双(硼酸酯)衍生自末端烯烃的对映选择性二硼化,可以通过使用对映体富集的伯/仲锂化氨基甲酸酯或苯甲酸酯在伯硼酸酯上选择性同系化,得到1,3-双(硼酸酯),随后可以完全立体控制地氧化成相应的仲-仲和仲-叔1,3-二醇。该转化应用于 14 元大环内酯 Sch 725674 的简明全合成。九步合成路线还具有二乙烯基甲醇衍生物的新型去对称对映选择性二硼化反应以及高产后期交叉复分解和 Yamaguchi 大环内酯化的特点反应。
  • Diboration of alkenes with bis(pinacolato)diboron catalysed by a platinum(0) complex
    作者:Tatsuo Ishiyama、Masafumi Yamamoto、Norio Miyaura
    DOI:10.1039/a700878c
    日期:——
    Bis(pinacolato)diboron selectively adds to terminal alkenes and cyclic alkenes having internal strain to provide bis(boryl)alkanes in 76–86% yields in the presence of a catalytic amount of Pt(dba) 2 at 50 °C.
    在50°C下,使用催化量的Pt(dba)2,双(频哪醇根)二硼可选择性地加成至具有内部应变的三级烯烃和环烯烃,从而在76-86%的产率下生成双(硼烷)烷烃。
  • New expanded-ring NHC platinum(0) complexes: Synthesis, structure and highly efficient diboration of terminal alkenes
    作者:Sergey A. Rzhevskiy、Maxim A. Topchiy、Konstantin A. Lyssenko、Anna N. Philippova、Maria A. Belaya、Alexandra A. Ageshina、Maxim V. Bermeshev、Mikhail S. Nechaev、Andrey F. Asachenko
    DOI:10.1016/j.jorganchem.2020.121140
    日期:2020.4
    The synthesis and structural characterization of a series of novel platinum(0) complexes were reported. A number of (NHC)Pt(dvtms) (dvtms = 1,3-divinyl-1,1,3,3-tetramethyldisiloxane) complexes were investigated in catalytic addition of B2Pin2 to terminal alkenes. The novel expanded ring N-heterocyclic carbene complex (7-Dipp)Pt(dvtms) showed highest performance, turnover numbers up to 3800 were achieved
    报道了一系列新型铂(0)配合物的合成和结构表征。在将B 2 Pin 2催化加成到末端烯烃中时,研究了许多(NHC)Pt(dvtms)(dvtms = 1,3-二乙烯基-1,1,3,3-四甲基二硅氧烷)配合物。新型的扩展环N-杂环卡宾络合物(7-Dipp)Pt(dvtms)表现出最高的性能,实现了高达3800的周转率。用20个带有各种烷基,烷氧基,卤素,酯,酮和缩醛取代基的实施例说明了反应的范围。
  • Bottleable NiCl<sub>2</sub>(dppe) as a catalyst for the Markovnikov-selective hydroboration of styrenes with bis(pinacolato)diboron
    作者:Toru Hashimoto、Toshiya Ishimaru、Keisuke Shiota、Yoshitaka Yamaguchi
    DOI:10.1039/d0cc05246a
    日期:——
    Although transition-metal-catalysed hydroboration reactions of alkenes have been extensively studied, only three examples using Ni complexes have been reported so far. In this study, we have examined hydroboration reactions of alkenes using Ni/phosphine complexes. The commercially available and bottleable complex NiCl2(dppe) (dppe = 1,2-bis(diphenylphosphino)ethane) serves as a catalyst for the highly
    尽管已经对过渡金属催化的烯烃的硼氢化反应进行了广泛的研究,但到目前为止,仅报道了三个使用镍配合物的例子。在这项研究中,我们检查了使用Ni /膦配合物的烯烃的硼氢化反应。市售可瓶装的复合NiCl 2(dppe)(dppe = 1,2-双(二苯基膦基)乙烷)用作苯乙烯衍生物的高Markovnikov选择性加氢硼化的催化剂,可高产率提供所需的Markovnikov产物。
  • Highly efficient monophosphine platinum catalysts for alkyne diboration
    作者:Rhodri Ll. Thomas、Fabio E. S. Souza、Todd B. Marder
    DOI:10.1039/b010225n
    日期:——
    Automated parallel screening using a series of in situ generated platinum(0) phosphine complexes has allowed the identification of improved catalysts for the diboration of alkynes using bis(pinacolato)diboron (B2(pin)2, pin = OCMe2CMe2O). A selection of phosphines were added to [Pt(NBE)3] (NBE = norbornene), which contains only labile mono-olefin ligands, and the activity of the resulting solutions as catalysts for the diboration of 4-CF3C6H4CCC6H4CF3-4′ 1 by B2(pin)2 was investigated by in situ GC-MS and/or NMR spectroscopy. This allowed the optimum phosphine ∶ platinum stoichiometry to be identified as 1 ∶ 1, and the large differences in catalyst activity depending on the nature of the phosphine to be quantified. The best phosphines employed in the study, PCy3 and PPh2(o-Tol) (o-Tol = C6H4Me-o), give activities orders of magnitude greater than the worst, such as P(C6F5)3 and PBut3. The monophosphine catalysts function much more efficiently than previous catalysts for a range of alkynes allowing diborations to be performed at ambient temperatures. The diboration of strained cyclic alkenes and some vinyl- and allyl-arenes proceeded well, although the catalysts were inactive for other olefinic systems examined. As a result of these studies, the isolable and stable compound [Pt(PCy3)(η2-C2H4)2] was identified as an excellent catalyst for alkyne diboration even at room temperature. p
    使用一系列原位生成的铂(0)磷烯复合物进行的自动化平行筛选,使得能够识别出使用双(匹卡醇)二硼(B2(pin)2, pin = OCMe2CMe2O)对炔烃进行双硼化的改进催化剂。选择了一些磷烯添加到仅含有可交换的单烯配体的[Pt(NBE)3](NBE = 脱氢诺尔本烯),并通过原位气相色谱-质谱(GC-MS)和/或核磁共振(NMR)光谱研究了所得溶液作为催化剂对4-CF3C6H4CCC6H4CF3-4'的双硼化反应的活性。这使得最佳的磷烯∶铂化学计量比被识别为1∶1,并且能够量化根据磷烯性质所产生的催化剂活性的大差异。在研究中使用的最佳磷烯,PCy3和PPh2(o-Tol)(o-Tol = C6H4Me-o),其活性比最差的催化剂,如P(C6F5)3和PBut3高几个数量级。单磷烯催化剂在多种炔烃中表现出比之前催化剂更高的效率,使得在常温下可以进行双硼化反应。尽管催化剂在其他烯烃系统中无活性,但在应变环烯烃和一些乙烯-和烯丙基-芳烃的双硼化中效果良好。这些研究的结果表明,分离和稳定的化合物[Pt(PCy3)(η2-C2H4)2]被识别为即使在常温下也能作为优秀的炔烃双硼化催化剂。
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