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2-(bromomethyl)-1,4-pentadiene | 125801-89-0

中文名称
——
中文别名
——
英文名称
2-(bromomethyl)-1,4-pentadiene
英文别名
2-(bromomethyl)penta-1,4-diene
2-(bromomethyl)-1,4-pentadiene化学式
CAS
125801-89-0
化学式
C6H9Br
mdl
——
分子量
161.041
InChiKey
UHRVDIZLCIXJLY-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

物化性质

  • 沸点:
    154.7±9.0 °C(Predicted)
  • 密度:
    1.231±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    3
  • 重原子数:
    7
  • 可旋转键数:
    3
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.33
  • 拓扑面积:
    0
  • 氢给体数:
    0
  • 氢受体数:
    0

反应信息

  • 作为反应物:
    描述:
    2-(bromomethyl)-1,4-pentadiene正丁基锂 、 copper diacetate 、 manganese triacetate 、 sodium hydride 作用下, 以 溶剂黄146 为溶剂, 反应 4.0h, 生成 5-Allyl-6-methylene-2-oxo-bicyclo[3.2.1]octane-1-carboxylic acid methyl ester
    参考文献:
    名称:
    基于锰 (III) 的氧化自由基串联和三重环化
    摘要:
    Les reaction du titre 贴花 a l'allyl-2methyl-6 oxo-3 heptene-6 oate demethyle donne lemethyl-5 methylene-6 oxo-2 bicyclo [3.2.1] Octanecarboxylate-1 demethyle。Le [cyclohexene-1″ yl-3' oxo-1' 丙基]-2 pentene-4 oate demethyle donne l'六氢亚甲基-9 oxo-2 ethano-1,4a naphtalene carboxylate-1 demethyle。Le二甲基-2,6 oxo-3 undecadiene-6,10 oate demethyle donne lemethyl-7a八氢茚二酮-1,5
    DOI:
    10.1021/ja00163a044
  • 作为产物:
    描述:
    2-methylidene-4-penten-1-ol吡啶三溴化磷 作用下, 以 正己烷 为溶剂, 反应 2.08h, 生成 2-(bromomethyl)-1,4-pentadiene
    参考文献:
    名称:
    仿生失败时形成复杂二聚体的策略:十种瓢虫生物碱的全合成
    摘要:
    尽管二聚天然产物通常可以在实验室中通过直接合并高级单体来合成,但这些方法有时会失败,而是通过不正确的联合导致非天然结构。在我们对瓢虫类生物碱的研究过程中,出现了这种情况,当时尝试在推定的仿生序列中直接二聚化自然假定的单体前体,但通过不正确的区域控制仅提供了非天然类似物。在此,我们概述了一种独特的二聚体形成策略,可以避免这些困难,该策略通过两个反应级联的终止序列快速构建瓢虫二聚体 psylloborine A 和 isopsyloborine A,生成 5 个键、5 个环和 4 个立构中心。此外,还确定了一种常见的合成中间体,可以快速、不对称地正式或完全合成该类的八个单体成员。
    DOI:
    10.1021/ja5045852
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文献信息

  • Copper-Catalyzed Enantiotopic-Group-Selective Allylation of <i>gem</i>-Diborylalkanes
    作者:Minjae Kim、Bohyun Park、Minkyeong Shin、Suyeon Kim、Junghoon Kim、Mu-Hyun Baik、Seung Hwan Cho
    DOI:10.1021/jacs.0c11750
    日期:2021.1.20
    We report a copper-catalyzed enatiotopic-group-selective allylation of gem-diborylalkanes with allyl bromides. The combination of copper(I) bromide and H8-BINOL derived phosphoramidite ligand proved to be the most effective catalytic system to provide various enantioenriched homoallylic boronate esters, containing a boron-substituted stereogenic center that is solely derived from gem-diborylalkanes
    我们报告了催化的对映基团选择性烯丙基化的 gem-二烷烃与烯丙基溴化铜 (I) 和 H8-BINOL 衍生的亚酰胺配体的组合被证明是提供各种对映体富集的高烯丙基硼酸酯的最有效的催化系统在温和条件下具有高对映体比率。已经进行了实验和理论研究以阐明反应机理,揭示了宝石-二硼烷烷烃与手性配合物的对映基团选择性转移属是如何发生手性 α-硼烷基-物种的。还包括合成各种手性构件的其他合成应用。
  • Pd-catalyzed cascade reactions involving skipped dienes: from double carbopalladation to remote C–C cleavage
    作者:Hamid Azizollahi、Vaibhav P. Mehta、José-Antonio García-López
    DOI:10.1039/c9cc04817k
    日期:——
    We report two ligand-controlled cascade reactions relying on the intramolecular carbopalladation of skipped dienes. The use of a bulky monodentate phosphine ligand affords [4,5]-spirocycles via sequential double carbopalladation, however bidentate phosphines promote a remote β-C-elimination process which does not rely on the use of strained or sterically hindered substrates.
    我们报告两个配体控制级联反应依赖于跳过二烯的分子内Carpalpalladation。庞大的单齿膦配体的使用可通过顺序的双碳环连接提供[4,5]-螺环,但双齿膦可促进远程β-C消除过程,该过程不依赖于使用应变或空间受阻的底物。
  • Stereoselective Control of the Cu Activation of β,β-Diboryl Acrylates for Allylic Coupling Protocols with Concomitant Lactonization
    作者:Mireia Pujol、María Méndez、Elena Fernández
    DOI:10.1021/acs.orglett.3c03640
    日期:2024.4.12
    discriminate between two geminal boryl moieties that are exposed to the same reaction conditions. Here we describe a stereoselective C–B activation of β,β-diboryl acrylates forming exclusively the (Z)-α-borylalkenyl copper(I) key intermediate, for subsequent allylic alkylation reactions. The new borylated (Z)-skipped dienoates followed a feasible iodo-lactonization sequence for the preparation of borylated
    成功 C-B 活化的关键是区分暴露于相同反应条件的两个偕基部分。在这里,我们描述了β,β-二丙烯酸酯的立体选择性C-B活化,仅形成( Z )-α-基烯基(I)关键中间体,用于随后的烯丙基烷基化反应。新的硼酸化( Z )-跳过的二烯酸酯遵循可行的内酯化顺序来制备硼酸化内酯核心,其可用于药物发现。
  • Highly selective trapping of unsymmetrical pentadienyl anions by silicon and tin electrophiles. Marked contrast between kinetic and thermodynamic control of product composition
    作者:Yoshinori Naruta、Yutaka Nishigaichi、Kazuhiro Maruyama
    DOI:10.1021/jo00006a011
    日期:1991.3
    The nucleophilic reaction of lithium and potassium salts of five pentadienyl anions bearing sterically and/or coordinatively different groups at their unsymmetrical 2-position toward Me3SiCl and Me3SnBr is described. When the anion of the potassium salt was trapped by Me3SiCl, (Z)-4-substituted-pentadienylsilanes were obtained with high selectivity (87-100%). The lithium salt, however, gave a mixture of (E)- and (Z)-4-substituted-pentadienylsilanes. The coupling reaction proceeds under kinetic control, because the product composition from Si trapping reflected the structure of the parent dienyl anion and the steric interaction between the incoming Me3Si group and the substituent on the anion. In contrast, when the anion was trapped by Me3SnBr under the identical conditions, (Z)-2-substituted-pentadienyltins were formed with 60-96% selectivity. Only relatively small changes in product composition, as a function of the cation or the substituent on the anion, were observed. These results could be explained by thermodynamic controlling factors, including a 1,5-Me3Sn shift, and a redistribution of pentadienyl groups under basic conditions.
  • The seriatim Cu(I) activation of 1,1,1′,1′-tetrapinacolborylethane to prospective ring closing
    作者:Sara González、Dario Del Carratore、Ricardo J. Maza、Elena Fernández
    DOI:10.1016/j.tchem.2023.100045
    日期:2023.12
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