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dimethylaluminum fluoride | 753-55-9

中文名称
——
中文别名
——
英文名称
dimethylaluminum fluoride
英文别名
Dimethylaluminium-fluorid;Dimethylalumanylium;fluoride
dimethylaluminum fluoride化学式
CAS
753-55-9
化学式
C2H6AlF
mdl
——
分子量
76.0496
InChiKey
GNTRBBGWVVMYJH-UHFFFAOYSA-M
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):
    1.21
  • 重原子数:
    4
  • 可旋转键数:
    0
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    1.0
  • 拓扑面积:
    0
  • 氢给体数:
    0
  • 氢受体数:
    1

反应信息

  • 作为反应物:
    描述:
    丙泊酚dimethylaluminum fluoride甲苯 为溶剂, 以10%的产率得到(2,6-i-Pr2C6H3O)Al4F2Me4
    参考文献:
    名称:
    An Alternative Approach to Al2O2 Ring Systems by Unexpected Cleavage of Stable Al−F− and Si−O− Bonds
    摘要:
    The reaction of dimethyl aluminum fluoride (Me2AlF, DMAF) with 2,6-diisopropylphenol and triethylcitrate, respectively, leads to the products (RO)(6)Al4F2Me4 (R = 2,6-i-Pr2C6H3) (1) and (ROAlFMe)(2) (R = C(CH2COOEt)(2)(COOEt)) (2), containing Al2O2 ring systems. Both aluminum-mu-oxo fluorides have been structurally characterized. Fluorine exchange in the reaction of 2,6-diisopropylphenol with DMAF has been monitored using F-19 NMR spectroscopy. The proposed processes in solution are confirmed by the solid-state structure of 1. Compound 1 contains four aluminum centers forming three four-membered ring systems. The two outer cycles consist of bridging-OR groups, whereas the aluminum atoms in the central cycle are connected via fluorine atoms. Two of the aluminum atoms are 4-fold coordinated, and two are 5-fold coordinated. Compound 1 contains a rare four-membered Al2F2 ring system. Compound 2 exhibits a dimeric structure, with oxygen rather than fluorine atoms bridging the aluminum atoms. A further carboxy oxygen atom binds coordinatively to one aluminum atom in 2. The aluminum atoms are 5-fold coordinated. In search of an alternative approach to synthesizing Al2O2 ring systems, it has been found that neither DMAF nor trimethyl aluminum (Me3Al, TMA) reacts with (Me3Si)(2)O, whereas the reaction of diisobutyl aluminum hydride (i-Bu2AlH, DIBAH) with (Me3Si)(2)O leads to (i-Bu2AlOSiMe3)(2) (3). In compound 3 the aluminum centers in the four-membered Al2O2 ring system are only 4-fold coordinated. This is the first example of a structurally characterized aluminum product obtained from (Me3Si)(2)O under cleavage of the Si-O bond.
    DOI:
    10.1021/ic990185e
  • 作为产物:
    描述:
    二甲基氯化铝 在 potassium fluoride 作用下, 以 甲苯 为溶剂, 反应 1.83h, 生成 dimethylaluminum fluoride
    参考文献:
    名称:
    [EN] HALOALUMINOXANE COMPOSITIONS, THEIR PREPARATION, AND THEIR USE IN CATALYSIS
    [FR] COMPOSITIONS D'HALOALUMINOXANE, PREPARATION ET UTILISATION DE CELLES-CI DANS DES CATALYSES
    摘要:
    已经形成了新的氧化铝卤代铝簇合物。卤素可以是氟、氯和/或溴,而该簇合物中存在的卤素原子的数量在相对于铝原子约0.5摩尔%至约15摩尔%的范围内。
    公开号:
    WO2005066191A1
  • 作为试剂:
    描述:
    rac-ethylene bis(tetrahydroindenyl) zirconium dimethyl 、 三(五氟苯基)硼烷dimethylaluminum fluoride 作用下, 以 氘代甲苯 为溶剂, 生成 [ethylenebis(tetrahydroindenyl) methylzirconium][methyltris(pentafluorophenyl)borate]
    参考文献:
    名称:
    AlMe2F的溶液结构和与茂金属的反应性:模仿金属茂-甲基铝氧烷内球离子对中的阳离子-阴离子相互作用。
    摘要:
    已通过先进的NMR技术研究了AlMe 2 F的溶液结构及其与典型的Ansa-茂金属的反应性,试图间接阐明烯烃聚合中甲基铝氧烷(MAO)混合物的结构和工作原理。在溶液中,AlMe 2 F引起低聚物质的复杂平衡,其中包括杂茂[[Me 2 Al)4 F 4 ]四聚体,类似于MAO的行为。这种复杂的混合物与(ETH)ZrMe 2(ETH = rac- [亚乙基双(4,5,6,7-四氢-1-茚基)])反应生成[(ETH)ZrMeδ +(μF)(AlMe 2楼)n AlMe通过将AlMe 2 F单元连续插入/插入到Zr⋅⋅⋅(μF)键中,获得3个δ− ]内球离子对。
    DOI:
    10.1002/anie.201707194
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文献信息

  • Preparation of NHC Stabilized Al(III)fluorides: Fluorination of [(SIMes)AlMe <sub>3</sub> ] with SF <sub>4</sub> or Me <sub>3</sub> SnF
    作者:Pooja Tomar、Thomas Braun、Erhard Kemnitz
    DOI:10.1002/ejic.201900921
    日期:2019.11.30
    Various reaction routes have been developed to synthesize the N‐heterocyclic carbene (NHC) stabilized Al(III) fluorides [(SIMes)Al(F)3] (2) and [(SIMes)Al(F)Me2] (3) through fluorination of [(SIMes)AlMe3] (1) (SIMes: 1,3‐bis(2,4,6‐trimethylphenyl)‐imidazolidin‐2‐ylidene) with fluorinating agents such as SF4, SF6 and Me3SnF. The reactivity of 2 was investigated towards a F/Cl exchange reaction by treating
    已开发出各种反应路线来合成N杂环卡宾(NHC)稳定的Al(III)化物[(SIMes)Al(F)3 ](2)和[(SIMes)Al(F)Me 2 ](3)通过化剂(SF 4,SF 6和Me 3)化[(SIMes)AlMe 3 ](1)(SIMes:1,3-二(2,4,6-三甲基苯基)-咪唑烷基-2-亚甲基)进行化SNF。通过用Me 3 SiCl处理,研究了2对F / Cl交换反应的反应性。
  • An Aluminum Fluoride Complex with an Appended Ammonium Salt as an Exceptionally Active Cooperative Catalyst for the Asymmetric Carboxycyanation of Aldehydes
    作者:Daniel Brodbeck、Florian Broghammer、Jan Meisner、Julian Klepp、Delphine Garnier、Wolfgang Frey、Johannes Kästner、René Peters
    DOI:10.1002/anie.201612493
    日期:2017.3.27
    Al−F bonds are among the most stable σ bonds known, exhibiting an even higher bond energy than Si−F bonds. Despite a stability advantage and a potentially high Lewis acidity of Al−F complexes, they have not been described as structurally defined catalysts for enantioselective reactions. We show that Al−F salen complexes with appended ammonium moieties give exceptional catalytic activity in asymmetric
    Al-F键是已知最稳定的σ键之一,其键能比Si-F键甚至更高。尽管具有稳定性优势和Al-F配合物潜在的路易斯酸度较高,但尚未将其描述为对映选择性反应的结构限定催化剂。我们显示,Al-Salen配合物具有附加的基部分,在不对称的羧基化反应中具有出色的催化活性。除了芳族醛以外,烯醛和脂族底物也被广泛接受。达到约10 4的营业额,而以前的催化剂为10 1 –10 2营业额通常是达到的。与Al-Me和Al-Cl salen络合物相反,类似的Al-F物种对空气,和热非常稳定,并且在催化后可以不变地回收。如DFT计算所示,它们具有显着提高的路易斯酸度。
  • Asymmetric Carboxycyanation of Aldehydes by Cooperative AlF/Onium Salt Catalysts: from Cyanoformate to KCN as Cyanide Source
    作者:Daniel Brodbeck、Sonia Álvarez-Barcia、Jan Meisner、Florian Broghammer、Julian Klepp、Delphine Garnier、Wolfgang Frey、Johannes Kästner、René Peters
    DOI:10.1002/chem.201804388
    日期:2019.1.28
    cyanohydrins as versatile chiral building blocks. Next to HCN, volatile organic cyanide sources are usually used. Among them, cyanoformates are more attractive on technical scale than TMSCN for cost reasons, but catalytic productivity is usually lower. Here, the development of a new strategy for cyanations is described, in which this activity disadvantage is overcome. A Lewis acidic Al center cooperates
    不对称的1,2-化物加成可生成对映体富集的醇,作为通用的手性构建基块。除了HCN,通常使用挥发性有机化物源。其中,出于成本原因,甲酸酯在技术规模上比TMSCN更具吸引力,但催化生产率通常较低。在此,描述了一种新的化策略的发展,其中克服了这种活性缺点。Lewis酸性Al中心与非常坚固的双功能Al–F–salen络合物中的非质子鎓部分协作。这使得空前的营业额达到10 4。DFT研究表明出乎意料的独特三分子途径,其中结合化物攻击醛,醛本身被结合到Al中心的甲酸酯的羰基激活。此外,开发了一种新颖的实用的羧基化方法,该方法利用KCN作为唯一的化物源。使用焦碳酸盐作为羧化试剂可提供最佳结果。
  • Ziegler; Koester, Justus Liebigs Annalen der Chemie, 1957, vol. 608, p. 1,6
    作者:Ziegler、Koester
    DOI:——
    日期:——
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