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(R)-2-(boranato(tert-butyl)methylphosphino)bromobenzene | 1355197-78-2

中文名称
——
中文别名
——
英文名称
(R)-2-(boranato(tert-butyl)methylphosphino)bromobenzene
英文别名
(R)-2-bromophenyl(tert-butyl)(methyl)phosphaneborane;(R)-2-(boranato)(t-butyl)methylphosphino-1-bromobenzene;(Rp)-(2-bromophenyl)(tert-butyl)(methyl)phosphine-borane;(R)-(2-bromophenyl)(tert-butyl)methylphosphine-borane
CAS
1355197-78-2
化学式
C11H19BBrP
mdl
——
分子量
272.961
InChiKey
ZTWMJIXLLDXXPY-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):
    None
  • 重原子数:
    None
  • 可旋转键数:
    None
  • 环数:
    None
  • sp3杂化的碳原子比例:
    None
  • 拓扑面积:
    None
  • 氢给体数:
    None
  • 氢受体数:
    None

反应信息

点击查看最新优质反应信息

文献信息

  • An<i>Atropos</i>Chiral Biphenyl Bisphosphine Ligand Bearing Only 2,2′-Substituents and Its Application in Rh-Catalyzed Asymmetric Hydrogenation
    作者:Jia Jia、Zheng Ling、Zhenfeng Zhang、Ken Tamura、Ilya D. Gridnev、Tsuneo Imamoto、Wanbin Zhang
    DOI:10.1002/adsc.201701281
    日期:2018.2.15
    19.9 kcal/mol). This ligand avoids the time‐consuming optical resolution generally needed for the preparation of axially chiral ligands and shows high reactivity and enantioselectivity in Rh‐catalyzed asymmetric hydrogenations.
    使用大体积的手性叔丁基甲基膦基嵌段,合理地设计并轻松合成了仅带有2,2'取代基的atropos手性联苯膦配体。计算结果表明两种非对映异构体之间的自由能(7.8 kcal / mol)和从一种非对映异构体到另一种非对映异构体(27.7 kcal / mol和反向的19.9 kcal / mol)可获得的旋转能垒之间存在很大差异。该配体避免了制备轴向手性配体通常所需的费时的光学拆分,并且在Rh催化的不对称氢化反应中具有高反应活性和对映选择性。
  • Rigid P-Chiral Phosphine Ligands with <i>tert</i>-Butylmethylphosphino Groups for Rhodium-Catalyzed Asymmetric Hydrogenation of Functionalized Alkenes
    作者:Tsuneo Imamoto、Ken Tamura、Zhenfeng Zhang、Yumi Horiuchi、Masashi Sugiya、Kazuhiro Yoshida、Akira Yanagisawa、Ilya D. Gridnev
    DOI:10.1021/ja209700j
    日期:2012.1.25
    prepared in short steps from enantiopure (S)- and (R)-tert-butylmethylphosphine-boranes as the key intermediates. All of these ligands were crystalline solids and were not readily oxidized on exposure to air. Their rhodium complexes exhibited excellent enantioselectivities and high catalytic activities in the asymmetric hydrogenation of functionalized alkenes, such as dehydroamino acid derivatives and enamides
    2,3-双(叔丁基甲基膦基)喹喔啉 (QuinoxP*)、1,2-双(叔丁基甲基膦基)苯 (BenzP*) 和 1,2-双(叔丁基甲基膦基)-4,5 的两种对映异构体-(亚甲基二氧基)苯 (DioxyBenzP*) 以对映体纯 (S)- 和 (R)-叔丁基甲基膦硼烷为关键中间体,通过短步骤制备。所有这些配体都是结晶固体并且在暴露于空气时不容易被氧化。它们的配合物在功能化烯烃(如脱氢氨基酸生物和烯酰胺)的不对称氢化中表现出优异的对映选择性和高催化活性。这些催化剂的实际效用通过几种具有氨基酸或仲胺成分的手性药物成分的有效制备得到证明。结构简单的配体 BenzP* 的配合物用于不对称氢化的机理研究。低温 NMR 研究以及使用 α-乙酰肉桂酸甲酯作为标准模型底物的 DFT 计算揭示了反应途径和对映选择机制的新方面。
  • Enantiopure 1,2-Bis(<i>tert</i>-butylmethylphosphino)benzene as a Highly Efficient Ligand in Rhodium-Catalyzed Asymmetric Hydrogenation
    作者:Ken Tamura、Masashi Sugiya、Kazuhiro Yoshida、Akira Yanagisawa、Tsuneo Imamoto
    DOI:10.1021/ol101936w
    日期:2010.10.1
    An electron-rich P-stereogenic bisphosphine ligand named “BenzP*” was conveniently prepared from o-dibromobenzene and enantiopure tert-butylmethylphosphine-borane. Its rhodium complex exhibited excellent enantioselectivities of up to 99.9% and high catalytic activity of up to 10 000 h−1 TOF in asymmetric hydrogenations of various functionalized alkenes.
    方便地由邻二溴苯和对映纯的叔丁基甲基膦硼烷制备富含电子的P-立体异构双膦配体“ BenzP *” 。在各种官能化烯烃的不对称加氢反应中,其配合物表现出高达99.9%的优异对映选择性和高达10000 h -1 TOF的高催化活性。
  • METHOD FOR PRODUCING OPTICALLY ACTIVE 1,2-BIS(DIALKYLPHOSPHINO)BENZENE DERIVATIVE
    申请人:Tamura Ken
    公开号:US20130172597A1
    公开(公告)日:2013-07-04
    An industrially advantageous method for producing an optically active 1,2-bis(dialkylphosphino)benzene derivative of the present invention is provided. The method is characterized in that a phosphine-borane compound represented by the following general formula (1) is subjected to a deboronation reaction, followed by lithiation, then the reaction product is subjected to reaction with an alkyldihalogenophosphine represented by R a PX′ 2 , and thereafter the reaction product is subjected to reaction with a Grignard reagent represented by R b MgX″ to produce an optically active 1,2-bis(dialkylphosphino)benzene derivative (A). R 1 and R 2 respectively represent an alkyl group having 1 to 8 carbon atoms, and the number of carbon atoms is different between R 1 and R 2 . R a is either R 1 or R 2 and R b is the other of R 1 and R 2 . X, X′, and X″ each represent a halogen atom.
    本发明提供了一种在工业上具有优势的生产光学活性1,2-双(二烷基膦基)苯衍生物的方法。该方法的特征在于,将由下述一般式(1)表示的膦硼烷化合物进行脱反应,然后进行化反应,然后将反应产物与由RaPX′2表示的烷基二卤代膦烷发生反应,然后将反应产物与由RbMgX″表示的格氏试剂发生反应,以产生光学活性的1,2-双(二烷基膦基)苯衍生物(A)。R1和R2分别表示具有1至8个碳原子的烷基基团,且R1和R2之间的碳原子数不同。R为R1或R2中的一个,R为R1和R2中的另一个。X、X′和X″分别表示一个卤素原子。
  • JP2019206510A5
    申请人:——
    公开号:JP2019206510A5
    公开(公告)日:2019-12-05
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