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4,4,5,5-tetramethyl-2-(4-phenyl-2-((4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)oxy)butan-2-yl)-1,3,2-dioxaborolane | 1226953-82-7

中文名称
——
中文别名
——
英文名称
4,4,5,5-tetramethyl-2-(4-phenyl-2-((4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)oxy)butan-2-yl)-1,3,2-dioxaborolane
英文别名
4,4,5,5-Tetramethyl-2-[4-phenyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)butan-2-yl]oxy-1,3,2-dioxaborolane;4,4,5,5-tetramethyl-2-[4-phenyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)butan-2-yl]oxy-1,3,2-dioxaborolane
4,4,5,5-tetramethyl-2-(4-phenyl-2-((4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)oxy)butan-2-yl)-1,3,2-dioxaborolane化学式
CAS
1226953-82-7
化学式
C22H36B2O5
mdl
——
分子量
402.147
InChiKey
AGBKAZRLLLTQAP-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):
    4.61
  • 重原子数:
    29
  • 可旋转键数:
    6
  • 环数:
    3.0
  • sp3杂化的碳原子比例:
    0.73
  • 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

  • Synthesis of Secondary and Tertiary Alkyl Boronic Esters by <i>gem</i> -Carboborylation: Carbonyl Compounds as Bis(electrophile) Equivalents
    作者:Dunfa Shi、Lu Wang、Chungu Xia、Chao Liu
    DOI:10.1002/anie.201804684
    日期:2018.8.6
    tertiary alkyl boronic esters. The addition of B2pin2 to a carbonyl compound generates α‐oxyl‐substituted alkyl boron species. Organolithium and Grignard reagents are then applied as C nucleophiles for the 1,2‐metalate rearrangement process. The organolithium reagents can also be generated by C−H lithiation or halogen/lithium exchange. The use of chiral ligands led to the generation of chiral alkyl boronic
    醛和酮具有前所未有的宝石碳羰基化作用,可以使用各种仲和叔烷基硼酸酯。将B 2 pin 2加到羰基化合物上可生成α-氧基取代的烷基硼。然后将有机锂和格氏试剂用作C-亲核试剂,用于1,2-金属酸盐重排过程。有机锂试剂也可以通过CH锂化或卤素/锂交换生成。手性配体的使用导致了对映体富集形式的手性烷基硼酸酯的生成,表明这种转化的对映选择性是由催化剂控制的。
  • Deoxygenative Haloboration and Enantioselective Chloroboration of Carbonyls
    作者:Dong Wang、Jun Zhou、Zihao Hu、Tao XU
    DOI:10.1021/jacs.2c11024
    日期:2022.12.21
    α-haloboronates. Meanwhile, the difficult-to-obtain tertiary α-haloboronates can be also readily prepared via the same strategy with ketones. Furthermore, enantioselective chloroboration of carbonyls was successfully achieved to give chiral secondary or tertiary α-chloroboronates, the important intermediates to access enantioenrich multisubstituted stereocenters. These versatile products can be surprisingly attained
    羰基的脱氧双功能化为构建孪生双功能基序提供了一种直接有效的途径。然而,由于C-O双键或随后形成的C-O键具有很强的键解离能,这一领域的研究非常具有挑战性。在此,我们报告了一种高效的醛脱氧卤化反应,可生成二级 α-卤代硼酸盐。同时,通过与酮相同的策略也可以很容易地制备难以获得的叔α-卤代硼酸盐。此外,成功地实现了羰基的对映选择性氯硼化,得到手性仲或叔 α-氯硼酸盐,这是获得富含对映体的多取代立体中心的重要中间体。这些多功能产品可以通过这种简单温和的过程令人惊讶地获得,具有显着的底物范围扩展和官能团耐受性。此外,这些反应可以在大规模上很好地进行,在应用中具有更多的实用价值。
  • Copper-Catalyzed Diboration of Ketones: Facile Synthesis of Tertiary α-Hydroxyboronate Esters
    作者:Melissa L. McIntosh、Cameron M. Moore、Timothy B. Clark
    DOI:10.1021/ol100468f
    日期:2010.5.7
    The diboration of ketones with the (ICy)CuOt-Bu catalyst was developed to provide access to tertiary alpha-hydroxyboronate esters. The (ICy)CuOt-Bu catalyst was generated in situ with (ICy)CuCI and NaOt-Bu to afford a more efficient catalyst than the preformed (ICy)CuOt-Bu. These conditions result in the diboration of various ketones in toluene at 50 degrees C in 2-22 h. Treatment of the resulting products with silica gel affords the corresponding a-hydroxyboronate esters.
  • Stereoselective Formation of Trisubstituted Vinyl Boronate Esters by the Acid-Mediated Elimination of α-Hydroxyboronate Esters
    作者:Weiye Guan、Alicia K. Michael、Melissa L. McIntosh、Liza Koren-Selfridge、John P. Scott、Timothy B. Clark
    DOI:10.1021/jo500773t
    日期:2014.8.1
    trisubstituted vinyl boronate esters with moderate to good yields and selectivity. Addition of tosic acid to the crude diboration products provides the corresponding vinyl boronate esters upon elimination. The trisubstituted vinyl boronate esters are formed as the (Z)-olefin isomer, which was established by subjecting the products to a Suzuki–Miyaura coupling reaction to obtain alkenes of known geometry
    铜催化酮的二硼化,然后是酸催化的消除,导致形成 1,1-二取代和三取代乙烯基硼酸酯,具有中等至良好的产率和选择性。将甲苯磺酸加入粗二硼化产物中,消除后得到相应的硼酸乙烯酯。三取代的乙烯基硼酸酯形成为 ( Z )-烯烃异构体,这是通过将产物进行 Suzuki-Miyaura 偶联反应以获得已知几何形状的烯烃来建立的。
  • Synthesis of α‐Seleno Boronates <i>via</i> Diboration of Carbonyl Compounds
    作者:Sufal Paul、Rahul Mondal、K. Geetharani
    DOI:10.1002/asia.202300761
    日期:2023.11.16
    We demonstrated the first sequential synthesis of gem-selenoborylation via the diboration of aldehydes and ketones. The selenation of the α-oxyl alkyl boronates was successfully achieved providing a series of synthetically valuable α-seleno alkyl boronates with good functional group tolerance.
    我们展示了通过醛和酮的二硼化首次连续合成宝石硒硼化。成功实现了α-氧基烷基硼酸酯的硒化,提供了一系列具有良好官能团耐受性的具有合成价值的α-硒代烷基硼酸酯。
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