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4,4,5,5-tetramethyl-2-((1E,3E)-penta-1,3-dienyl)-1,3,2-dioxaborolane

中文名称
——
中文别名
——
英文名称
4,4,5,5-tetramethyl-2-((1E,3E)-penta-1,3-dienyl)-1,3,2-dioxaborolane
英文别名
4,4,5,5-tetramethyl-2-((1E,3E)-penta-1,3-dien-1-yl)-1,3,2-dioxaborolane;4,4,5,5-tetramethyl-2-[(1E,3E)-penta-1,3-dienyl]-1,3,2-dioxaborolane
4,4,5,5-tetramethyl-2-((1E,3E)-penta-1,3-dienyl)-1,3,2-dioxaborolane化学式
CAS
——
化学式
C11H19BO2
mdl
——
分子量
194.082
InChiKey
KZBDMXKARCEXDO-BLHCBFLLSA-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):
    2.75
  • 重原子数:
    14
  • 可旋转键数:
    2
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.64
  • 拓扑面积:
    18.5
  • 氢给体数:
    0
  • 氢受体数:
    2

上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    描述:
    4,4,5,5-tetramethyl-2-((1E,3E)-penta-1,3-dienyl)-1,3,2-dioxaborolanesodium periodate 、 ammonium acetate 作用下, 以 丙酮 为溶剂, 以54 %的产率得到2,4,6-tri((1E,3E)-penta-1,3-dien-1-yl)-1,3,5,2,4,6-trioxatriborinane
    参考文献:
    名称:
    铜催化烯酮二酯与三烯基环硼氧烷的不对称烯基化反应
    摘要:
    报道了铜催化的三烯基环硼氧烷与烯酮二酯的不对称共轭加成反应。这种操作简单且可扩展的反应在室温下进行,并且在应用的反应条件下可以耐受各种烯酮二酯和环硼氧烷。通过正式合成 (+)-methylenolactocin 证明了这种方法的实用性。机理研究表明,两种不同的催化物质在反应中协同作用。
    DOI:
    10.1021/acs.orglett.3c00262
  • 作为产物:
    描述:
    2,2'-亚甲基双(4,4,5,5-四甲基-1,3,2-二氧杂戊硼烷)sodium periodate 、 ammonium acetate 、 2,2,6,6-tetramethylpiperidinyl-lithium 作用下, 以 四氢呋喃丙酮 为溶剂, 反应 25.17h, 生成 4,4,5,5-tetramethyl-2-((1E,3E)-penta-1,3-dienyl)-1,3,2-dioxaborolane
    参考文献:
    名称:
    Lewis Acid Activation of Carbodicarbene Catalysts for Rh-Catalyzed Hydroarylation of Dienes
    摘要:
    The activation of carbodicarbene (CDC)-Rh(I) pincer complexes by secondary binding of metal salts is reported for the catalytic site-selective hydro-heteroarylation of dienes (up to 98% yield and >98:2 gamma:alpha). Reactions are promoted by 5 mol % of a readily available tridentate (CDC)-Rh complex in the presence of an inexpensive lithium salt. The reaction is compatible with a variety of terminal and internal dienes and tolerant of ester, alkyl halide, and boronate ester functional groups. X-ray data and mechanistic experiments provide support for the role of the metal salts on catalyst activation and shed light on the reaction mechanism. The increased efficiency (120 to 22 degrees C) made available by catalytic amounts of metal salts to catalysts containing C(0) donors is a significant aspect of the disclosed studies.
    DOI:
    10.1021/jacs.5b03510
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文献信息

  • Syntheses of Unsymmetrical 1,4-Bifunctional Allylboron Reagents via Cu-catalyzed Highly Regio- and Stereoselective 1,4-Protoboration of Dienylboronates and Analysis of the Origin of Chemoselective Aldehyde <i>syn</i>-(Hydroxymethyl)allylation
    作者:Shang Gao、Mengzhou Wang、Ming Chen
    DOI:10.1021/acs.orglett.8b03483
    日期:2018.12.21
    allylboron reagents via Cu-catalyzed highly regio- and stereoselective 1,4-protoboration of dienylboronates were developed. The resulting allylboronates underwent chemoselective allylboration with aldehydes followed by oxidative workup to give diol products with high diastereoselectivity. Transition state analysis revealed that the disfavored transition states suffer from either a severe A1,3 allylic strain
    通过铜催化的二烯基硼酸酯的高度区域选择性和立体选择性的1,4-原硼酸化反应,开发了不对称的1,4-双功能烯丙基硼试剂。将所得的烯丙基硼酸酯与醛进行化学选择性烯丙基硼化,然后进行氧化后处理,以得到具有高非对映选择性的二醇产物。过渡态分析表明,不利的过渡态会受到严重的1,3,3烯丙基应变或1,3-顺戊烷相互作用的影响。提议使这种非键合的1,3-顺戊烷相互作用的最小化是观察到的反应的化学选择性的起源。
  • Synthesis of Vinyl Boronates from Aldehydes by a Practical Boron–Wittig Reaction
    作者:John R. Coombs、Liang Zhang、James P. Morken
    DOI:10.1021/acs.orglett.5b00480
    日期:2015.4.3
    A highly stereoselective boron-Wittig reaction between stable and readily accessible 1,1-bis(pinacolboronates) and aldehydes furnishes a variety of synthetically useful di- and trisubstituted vinyl boronate esters.
    稳定且易于获得的1,1-双(频哪醇硼酸酯)与醛之间的高度立体选择性的硼-维蒂希反应提供了各种合成上有用的二和三取代的乙烯基硼酸酯。
  • Ru(0)-Catalyzed Regioselective Synthesis of Borylated-1,4- and -1,5-Diene Building Blocks
    作者:Shione Okazaki、Keita Shimada、Nobuyuki Komine、Masafumi Hirano
    DOI:10.1021/acs.organomet.1c00615
    日期:2022.2.28
    (E)-penta-1,3-diene (2d) with 2-vinyl-2,3-dihydro-1H-naphtho[1,8-de][1,3,2]diazaborinine (vinyl B(dan)) (3i) also gives a borylated-1,4-diene product. These cross-dimerizations give mono-borylated-1,4-dienes, yet cross-dimerizations using (1E,3E)-penta-1,3-dien-1-ylboronic acid pinacolate ester (2b) with vinyl B(dan) (3i) produce a diborylated-1,5-diene. Selective formation of 1,6-diborylated-1,5-dienes is
    建立了一种制备硼化1,4-和-1,5-二烯结构单元的新方法。Ru(0)-催化的 (1 E ,3 E )-penta-1,3-dien-1-ylboronic acid pinacolate ester ( 2b ) 与 but-3-en-2-one ( 3a ) 的交叉二聚选择性地产生一种硼化-1,4-二烯产物,(3 E ,6 E )-5-methyl-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)octa-3,6 -dien-2-one,产率为 76%。( E )-penta-1,3-diene ( 2d ) 与 2-vinyl-2,3-dihydro-1 H -naphtho [1,8 - de ][1,3,2]diazaborinine (vinyl B(丹)) ( 3i) 还产生硼化 1,4-二烯产物。这些交叉二聚反应产生单硼化 1,4-二烯,但使用
  • Catalytic cross-dimerisation giving reactive borylated polyenes toward cross-coupling
    作者:Masafumi Hirano、Ayumi Kuramochi、Keita Shimada、Nobuyuki Komine、Sayori Kiyota、Stephen A. Westcott
    DOI:10.1039/c9cc05930j
    日期:——

    A series of borylated conjugated trienes and skipped dienes is prepared by Ru-catalysed cross-dimerisation using alkynyl-, dienyl-, and vinyl boronates.

    通过Ru催化的交叉二聚化反应,使用炔基硼酸酯、双烯基硼酸酯和乙烯基硼酸酯制备了一系列硼化的共轭三烯和跳跃二烯。
  • Ni-Catalyzed Si−B Addition to 1,3-Dienes:  Disproportionation in Lieu of Silaboration
    作者:Martin Gerdin、Christina Moberg
    DOI:10.1021/ol060765x
    日期:2006.7.1
    [reaction: see text] Upon attempted silaboration of acyclic 1- and 1,4-substituted 1,3-dienes, a new disproportionation reaction was discovered, yielding 1:1 mixtures of allylsilanes and dienylboranes. It was demonstrated that, as a key step in this new catalytic process, hydrogen is being transferred from one diene moiety to another.
    [反应:见正文]在尝试对无环的1和1,4-取代的1,3-二烯进行硅烷化时,发现了新的歧化反应,生成了烯丙基硅烷和二烯基硼烷的1:1混合物。已证明,作为该新催化过程中的关键步骤,氢正在从一个二烯部分转移到另一个。
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