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(E)-4,4,5,5-tetramethyl-2-(penta-2,4-dien-1-yl)-1,3,2-dioxaborolane | 102787-31-5

中文名称
——
中文别名
——
英文名称
(E)-4,4,5,5-tetramethyl-2-(penta-2,4-dien-1-yl)-1,3,2-dioxaborolane
英文别名
(E)-4,4,5,5-tetramethyl-2-(2,4-pentadienyl)-1,3,2-dioxaborolane;2-(2,4-pentadienyl)4,4,5,5-tetramethyl-1,3,2-dioxaborolane;4,4,5,5-tetramethyl-2-[(2E)-penta-2,4-dienyl]-1,3,2-dioxaborolane
(E)-4,4,5,5-tetramethyl-2-(penta-2,4-dien-1-yl)-1,3,2-dioxaborolane化学式
CAS
102787-31-5
化学式
C11H19BO2
mdl
——
分子量
194.082
InChiKey
STZAADOLJDRMBP-BQYQJAHWSA-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:
    222.4±19.0 °C(Predicted)
  • 密度:
    0.89±0.1 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    2.82
  • 重原子数:
    14
  • 可旋转键数:
    3
  • 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

点击查看最新优质反应信息

文献信息

  • Pentadienyl Type Lithium and Potassium Species: The Regioselectivity of their Reactions with Electrophiles
    作者:Manfred Schlosser、Armin Zellner、Frédéric Leroux
    DOI:10.1055/s-2001-17521
    日期:——
    Seven structurally distinct pentadienyl type lithium and potassium compounds were screened against a variety of electrophiles in order to assess the regioselectivity of the trapping reactions. Organoborates and analogs thereof (fluorodimethoxyborane) proved to be perfectly regioreliable attacking only unsubstituted terminal positions and thus providing, after oxidation, exclusively primary allylic alcohols. 2,4-Pentadienyllithiums or -potassiums, that carry a methyl group at the 1- or 3-position, exhibit the same extreme regioselectivity towards halotrialkylsilanes or carbon dioxide. Although the unsubstituted parent compounds combine with such electrophiles still preferentially at the terminal position, considerable proportions of branched products are concomitantly formed as well (1/3-attack ratios ranging from 2:1 to > 20:1). Hydroxyalkylating and alkylating reagents such as formaldehyde, oxirane or butyl iodide invariably afford regioisomeric mixtures generally varying in composition between 3:1 and 1:3. The condensation reaction with halotrialkylsilanes appears to follow a concerted (SN2-like) rather than an addition/elimination (ate complex-mediated) mechanism.
    进行了七种结构不同的戊二烯基型锂和钾化合物的筛选,以评估它们与各种亲电试剂反应的区域选择性。有机硼酸盐及其类似物(氟二甲氧基硼烷)显示了非常可靠的区域选择性,仅攻击未取代的末端位置,因此氧化后只得到完全的一级烯丙基醇。带有甲基的2,4-戊二烯基锂或钾在1-或3-位置上,对卤代三烷基硅烷或二氧化碳显示出相同的极端区域选择性。尽管未取代的母体化合物仍优先在末端位置与这些亲电试剂反应,但同时也会生成相当比例的支链产物(1/3-攻击比例从2:1到超过20:1)。羟烷基化和烷基化试剂,如甲醛、环氧乙烷或丁基碘,总是得到区域异构体的混合物,其组成通常在3:1和1:3之间变化。与卤代三烷基硅烷的缩合反应似乎遵循协同(类似SN2)而非加成/消除(通过ate复合体介导)的机制。
  • Method for preparation of boratabenzene derivatives
    申请人:Equistar Chemicals, L.P.
    公开号:US06410764B1
    公开(公告)日:2002-06-25
    A process for preparing boratabenzene derivatives is provided. The process includes the hydrogenation of a compound containing a boranaphthalene functional group to form a boratabenzene-containing compound. Depending on the compound containing a boranaphthalene functional group, the resulting boratabenzene compound may be converted into a catalyst suitable for olefin polymerization. A process for forming a boratabenzene derivative from a halo-dioxaborolane is also provided. In this process, a halo-dioxaborolane is reacted with a piperylide salt for form a pentadienyl dioxaborolane. The pentadienyl-dioxaborolane is reacted with a strong base to form an intermediate boratacyclohexanediene salt. The intermediate boratacyclohexanediene salt is then reacted with a trialkylaluminum compound to form an alkylboratabenzene salt.
    提供了一种制备硼代苯衍生物的过程。该过程包括对含有硼萘基团的化合物进行加氢,形成含有硼代苯基团的化合物。根据含有硼萘基团的化合物,所得的硼代苯化合物可以转化为适用于烯烃聚合的催化剂。还提供了一种从卤代二氧硼杂环烷形成硼代苯衍生物的过程。在这个过程中,卤代二氧硼杂环烷与哌啶盐反应,形成戊二烯基二氧硼杂环烷。戊二烯基二氧硼杂环烷与强碱反应,形成中间体硼代环己二烯基盐。然后,中间体硼代环己二烯基盐与三烷基铝化合物反应,形成烷基硼代苯盐。
  • HOFFMANN, R. W.;LANDMANN, B., CHEM. BER., 1986, 119, N 3, 1039-1053
    作者:HOFFMANN, R. W.、LANDMANN, B.
    DOI:——
    日期:——
  • Enantioselective Syntheses of 1,4-Pentadien-3-yl Carbinols via Brønsted Acid Catalysis
    作者:Shang Gao、Ming Chen
    DOI:10.1021/acs.orglett.9b04089
    日期:2020.1.17
    asymmetric addition of substituted 1,3-pentadienylboronates to aldehydes via Brønsted acid catalysis is reported. Under the developed conditions, a variety of synthetically useful 1,4-pentadien-3-yl carbinols were obtained in good yields with high enantioselectivities in the presence of a catalytic amount of a chiral phosphoric acid.
    据报道,通过布朗斯台德酸催化将不饱和的1,3-戊二烯基硼酸酯不对称加成到醛中。在发达的条件下,在催化量的手性磷酸的存在下,以高收率和高对映选择性获得了各种合成有用的1,4-戊二烯-3-基甲醇。
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