2,4,6-三甲基环硼氮烷 | 5314-85-2

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 硼酸衍生物
• 中文名称: 2,4,6-三甲基环硼氮烷
• 英文名称: 2,4,6-Trimethyl-[1,3,5,2,4,6]triazatriborinane
• 英文别名: B-Trimethylborazin；2,4,6-Trimethyl-borazin；B-Trimethylborazol；2,4,6-trimethylborazine；Borazine, 2,4,6-trimethyl-；2,4,6-trimethyl-1,3,5,2,4,6-triazatriborinane
• CAS: 5314-85-2
• 化学式: C₃H₁₂B₃N₃
• 分子量: 122.581
• InChiKey: DXFJPBGUYITLMJ-UHFFFAOYSA-N

物化性质

• 熔点：
  30°C
• 沸点：
  129°C

计算性质

• 辛醇/水分配系数(LogP)：
  -0.88
• 重原子数：
  9
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  36.1
• 氢给体数：
  3
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2,4,6-三甲基环硼氮烷 在 水 作用下， 生成 甲基硼酸
  参考文献：
  名称：

  Wiberg; Hertwig; Bolz, Zeitschrift fur Anorganische und Allgemeine Chemie, 1948, vol. 256, p. 202,215

  摘要：

  DOI：
• 作为产物：
  描述：

  B-三氯硼嗪 以69.8%的产率得到2,4,6-三甲基环硼氮烷
  参考文献：
  名称：

  Synthesis of B-Trisubstituted Borazines by Reaction of B-Trichloroborazine with Grignard Reagents¹

  摘要：

  DOI：

  10.1021/ja01500a018

文献信息

• B-Methyl Amine Borane Derivatives: Synthesis, Characterization, and Hydrogen Release
  作者：Patrick G. Campbell、Jacob S. A. Ishibashi、Lev N. Zakharov、Shih-Yuan Liu

  DOI：10.1071/ch13198

  日期：——

  with 6.8 wt-% and 8.9 wt-% capacity, respectively. Compounds 3 and 4 readily release 2 equivalents of H2 at 80°C in the presence of a CoCl2 catalyst to furnish the corresponding trimerized borazine derivatives. Regeneration of 3 from its spent fuel material can be accomplished using a simple two-step process: activation with formic acid followed by reduction with LiAlH4.

  我们将MeH 2 N–BH 2 Me（3）和H 3 N–BH 2 Me（4）的合成描述为潜在的储氢材料，容量分别为6.8 wt％和8.9 wt％。在CoCl 2催化剂存在下，化合物3和4在80°C时容易释放出2当量的H 2，以提供相应的三聚硼嗪衍生物。从其乏燃料材料中再生3可以使用简单的两步过程完成：用甲酸激活，然后用LiAlH 4还原。
• B-Methylated Amine-Boranes: Substituent Redistribution, Catalytic Dehydrogenation, and Facile Metal-Free Hydrogen Transfer Reactions
  作者：Naomi E. Stubbs、André Schäfer、Alasdair P. M. Robertson、Erin M. Leitao、Titel Jurca、Hazel A. Sparkes、Christopher H. Woodall、Mairi F. Haddow、Ian Manners

  DOI：10.1021/acs.inorgchem.5b01946

  日期：2015.11.16

  dehydrogenation chemistry of amine-boranes substituted at nitrogen has attracted considerable attention, much less is known about the reactivity of their B-substituted analogues. When the B-methylated amine-borane adducts, RR′NH·BH2Me (1a: R = R′ = H; 1b: R = Me, R′ = H; 1c: R = R′ = Me; 1d: R = R′ = iPr), were heated to 70 °C in solution (THF or toluene), redistribution reactions were observed involving

  尽管在氮上取代的胺-硼烷的脱氢化学引起了相当大的关注，但对它们的B-取代的类似物的反应性知之甚少。当B-甲基化胺-硼烷加合物时，RR'NH·BH 2 Me（1a：R = R'= H; 1b：R = Me，R'= H; 1c：R = R'= Me; 1d：R = R'= i Pr），在溶液（THF或甲苯）中加热到70°C，观察到重新分布反应，包括硼上甲基和氢取代基的明显扰乱，提供了RR'NH·BH的混合物3– x Me x（x= 0–3）。推测这些反应是通过胺-硼烷离解，然后可逆地形成乙硼烷中间体和加合物重整而发生的。Dehydrocoupling的1A - 1D在THF与铑（I），铱（III）和Ni（0）的预催化剂在20℃下导致的制品阵列，包括氨基硼烷RR'N═BHMe，环状diborazane [RR'N- BHMe] 2和硼嗪[RN–BMe] 3基于原位11 B NMR光谱分析，并通过
• Beiträge zur chemie des bors XLVIII. Zur kenntnis von bis(dialkylboryl)aminen
  作者：Heinrich Nöth、Heinrich Vahrenkamp

  DOI：10.1016/s0022-328x(00)89761-2

  日期：1969.3

  Diborylamines of the types (R2B)2NH and (R2B)2NR′ (R = CH3, C2H5, C3H7, C4H9;R′ = CH3) are obtained (a) from dialkylhaloboranes and disilazanes, (b) from dialkylhaloboranes and N-metalated aminoboranes, and (c) by aminolysis of dialkyl(mthylthio)boranes. They are thermodynamically unstable with respect to a decomposition into trialkylboranes and borazine derivatives; their decomposition is catalysed

  得到（R 2 B）2 NH和（R 2 B）2 NR'（R = CH 3，C 2 H 5，C 3 H 7，C 4 H 9 ; R'= CH 3）类型的二硼胺（a）来自二烷基卤庚烷和二硅氮烷，（b）来自二烷基卤庚烷和N-金属化的氨基硼烷，以及（c）通过二烷基（甲硫基）硼烷的氨解反应）。就分解成三烷基硼烷和硼嗪衍生物而言，它们在热力学上是不稳定的。它们的分解主要是由二烷基卤呋喃酮催化的。
• N-(2,4,6-Trimethylborazinyl)-substituted Boron, Aluminum and Titanium Compounds
  作者：Birgit Gemünd、Berndt Günther、Jörg Knizek、Heinrich Nöth

  DOI：10.1515/znb-2008-0105

  日期：2008.1.1

  The N-lithioborazine LiH₂N₃B₃Me₃, 1, reacts with organoboron halides not only to the respective borazinyl organylboranes but also by Me/halogen exchange. (Me₂N)₂B-H₂N₃B₃Me₃ was obtained from 1 and (Me₂N)₂BCl. A new ten-membered B₆N₄ ring system, 5, results on treatment of Cl(Me₂N)B-B(NMe₂)Cl with 1. The B-N-borazinyl borazines 6 - 8 can be prepared from 1 and B-monohalo borazines. The synthesis of 2,4,6-trimethylborazinyl-aluminum and -titanium compounds is achieved only with mononuclear monohalides of Al(III) and Ti(IV). The 2,4,6-trimethylborazinyl- bis(piperidino)alane 9 and the tris(2,6-diisopropylphenoxo)-2,4,6-trimethylborazinyltitanium 10 were characterized by X-ray structure analysis.

  The distortion of the borazine ring by B and N substitution is discussed. In case of the N-substituted borazines YH₂N₃B₃Me₃ the B-N bonds of the YNB₂ units are elongated, e. g. for Y = PBr₂ or (RO)₃Ti, while N lithiation leads to a shortening of these B-N bond. These changes of bond lengths are also reflected by changes in the B1-N2 and B3-N3 bond lengths which become shorter in the presence of electron-withdrawing groups, but longer in case of Li substitution. Also, the bond angles B1-N2-B2 and B2-N3-B3 are affected by an increase of up to 128°.

  N-锂硼氮杂环戊烷LiH₂N₃B₃Me₃，1，不仅与有机硼卤化物反应生成相应的硼氮杂环有机硼烷，还发生Me/卤素交换反应。从1和(Me₂N)₂BCl得到了(Me₂N)₂B-H₂N₃B₃Me₃。通过用1处理Cl(Me₂N)B-B(NMe₂)Cl得到了一个新的十元环B₆N4>环系统5。硼氮硼氮杂环6-8可以通过1和B-单卤代硼氮杂环制备。只有Al(III)和Ti(IV)的单核单卤化物才能合成2,4,6-三甲基硼氮杂环铝和钛化合物。2,4,6-三甲基硼氮杂环-双(哌啶基)铝9和三(2,6-二异丙基苯氧基)-2,4,6-三甲基硼氮杂环钛10通过X射线结构分析进行了表征。

  通过B和N取代引起的硼氮杂环畸变进行了讨论。对于N取代的硼氮杂环YH₂N₃B₃Me₃，YNB₂单元的B-N键被延长，例如对于Y = PBr₂或(RO)₃Ti，而N锂化导致这些B-N键的缩短。这些键长的变化也反映在B1-N2和B3-N3键长的变化上，在电子吸引基团存在时变短，但在锂取代的情况下变长。此外，键角B1-N2-B2和B2-N3-B3受到影响，最多增加128°。

• The Structural Chemistry of <i>N</i> ‐Monolithium Borazines
  作者：Heinrich Nöth、Susana Rojas‐Lima、Alexander Troll

  DOI：10.1002/ejic.200400881

  日期：2005.5

  [(Me3B3N3H2)Li(pmdta)] (2c) is monomeric. The N-lithiation leads to a distortion of the planar B 3 N 3 ring system: the B-N bonds at the metallated N atoms are short, the next opposite B-N pair is the longest, followed by a shorter B-N bond involving the B atom in the para position. However, all B-N bonds are longer than in the parent compound 1. Reaction of tBu 3 B 3 N 3 H 3 (3) with tBuLi in the presence

  三甲基环硼氮烷 (Me 3 B 3 N 3 H 3 , 1) 在己烷溶液中通过烷基交换与 RLi (R = nBu, tBu) 反应，得到硼嗪 Me 3 - n R n B 3 N 3 H 2 的混合物。相比之下，1 到 Me 3 B 3 N 3 H 2 Li (2) 的去质子化发生在用二乙醚溶液中的 MeLi 或与四甲基乙二胺 (TMEDA)、五甲基二乙三胺 (PMDTA) 复合的 RLi (R = nBu, tBu) 或三甲基六氢三嗪 (TMTA) 的己烷溶液，得到 2. [(Me 3 B 3 N 3 H 2 )Li(OEt 2 )] (2a), [(Me 3 B 3 N 3 H 2 )Li(tmta) 的溶剂化物] (2c) 和 [(Me 3 B 3 N 3 H 2 Li) 4 (tmeda) 3 ] (2b) 包含 2 的二聚单元。在 2b 的情况下，这些二聚体中的两个由一个 tmeda

表征谱图