K[tetrakis(η1-allyl)aluminate] | 1253216-05-5

• 英文名称: K[tetrakis(η1-allyl)aluminate]
• 英文别名: K[Al(η1-C3H5)4]
• CAS: 1253216-05-5
• 化学式: C₁₂H₂₀Al*K
• 分子量: 230.371
• InChiKey: YDXSDHWVJPIMAL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为反应物：
  描述：

  K[tetrakis(η1-allyl)aluminate] 在 碘 作用下， 以 氘代四氢呋喃 为溶剂， 生成 1,5-已二烯
  参考文献：
  名称：

  Bis(allyl)aluminum Cation, Tris(allyl)aluminum, and Tetrakis(allyl)aluminate: Synthesis, Characterization, and Reactivity

  摘要：

  Cationic, neutral, and anionic aluminum allyl compounds were synthesized, and their reactivity toward electrophiles was studied. The THF adduct of the previously elusive tris(allyl)aluminum, [Al(eta(1)-C3H5)(3)(THF)] (1), was isolated as an oil, Protonolysis of one allyl ligand in 1 using [NEt3H]- [BPh4] gave the cationic bis(allyl)aluminum, a fragment of the crystalline [Al(eta(1)-C3H5)(2)(THF)(3-n)](+)- [BPh4](-)center dot(n+1)THF(n = 0, 1) (2). Single-crystal X-ray diffraction of [Al(eta(1)-C3H5)(2)(THF)(2)](+)[BPh4](-) (2a) revealed a tetrahedral aluminum center, while [Al(eta(1)-C3H5)(2)(THF)(3)](+)[BPh4](-) (2b) contains a trigonal-bipyramidal aluminum center with both allyl ligands in the equatorial plane. The tetrakis(allyl)aluminate K+[Al(eta(1)-C3H5)(4)](-) (3) was also synthesized from the reaction of 1 with K(C3H5). Reactions of the allyl compounds 1-3 with (i) benzophenone, (ii) allyl halides C3H5X (X = Cl, Br, I), and (iii) halogen X-2 (X = Br, I) showed considerable difference with respect to the ionic charge of the aluminum allyl.

  DOI：

  10.1021/om100809h
• 作为产物：
  描述：

  三溴化铝 、 potassium allyl 以 四氢呋喃 、 正戊烷 为溶剂， 以55%的产率得到K[tetrakis(η1-allyl)aluminate]
  参考文献：
  名称：

  Bis(allyl)aluminum Cation, Tris(allyl)aluminum, and Tetrakis(allyl)aluminate: Synthesis, Characterization, and Reactivity

  摘要：

  Cationic, neutral, and anionic aluminum allyl compounds were synthesized, and their reactivity toward electrophiles was studied. The THF adduct of the previously elusive tris(allyl)aluminum, [Al(eta(1)-C3H5)(3)(THF)] (1), was isolated as an oil, Protonolysis of one allyl ligand in 1 using [NEt3H]- [BPh4] gave the cationic bis(allyl)aluminum, a fragment of the crystalline [Al(eta(1)-C3H5)(2)(THF)(3-n)](+)- [BPh4](-)center dot(n+1)THF(n = 0, 1) (2). Single-crystal X-ray diffraction of [Al(eta(1)-C3H5)(2)(THF)(2)](+)[BPh4](-) (2a) revealed a tetrahedral aluminum center, while [Al(eta(1)-C3H5)(2)(THF)(3)](+)[BPh4](-) (2b) contains a trigonal-bipyramidal aluminum center with both allyl ligands in the equatorial plane. The tetrakis(allyl)aluminate K+[Al(eta(1)-C3H5)(4)](-) (3) was also synthesized from the reaction of 1 with K(C3H5). Reactions of the allyl compounds 1-3 with (i) benzophenone, (ii) allyl halides C3H5X (X = Cl, Br, I), and (iii) halogen X-2 (X = Br, I) showed considerable difference with respect to the ionic charge of the aluminum allyl.

  DOI：

  10.1021/om100809h

文献信息

• Reactivity of Tris(allyl)aluminum toward Pyridine: Coordination versus Carbometalation
  作者：Crispin Lichtenberg、Thomas P. Spaniol、Jun Okuda

  DOI：10.1021/om200492f

  日期：2011.8.22

  Tris(allyl)aluminum as its THF adduct, [Al(η1-C3H5)3(THF)] (1), reacted with pyridine either under substitution to give [Al(η1-C3H5)3(py)] (7) (py = pyridine) or under carbometalation to give N-metalated 2-allyldihydropyridine depending on the solvent. The substituent pattern of the pyridine substrate and the aluminum center’s electrophilicity in [Al(η1-C3H5)3(L)] (L = neutral ligand) influenced the

  三（烯丙基）铝作为其THF加成物，[铝（η 1 -C 3 ħ 5）3（THF）]（1）中，用吡啶要么下置换反应，得到[铝（η 1 -C 3 ħ 5）3（py）]（7）（py =吡啶）或在碳金属化下，根据溶剂不同，可得到N-金属化的2-烯丙基二氢吡啶。吡啶基的取代模式和铝中心在亲电[铝（η 1 -C 3 ħ 5）3（L）]（L =中性配体）影响了反应的结果。已经研究了一种N-金属化的二氢吡啶与亲电试剂的反应。的三（烯丙基）铝的结晶衍生物，[铝（η 1 -C 3 ħ 5）3（OPPh 3）]（2），和四（烯丙基）铝在离子对[K（15-冠-5）2 ] [铝（η 1 -C 3 ħ 5）4 ]（4）由单晶X射线衍射进行了表征，并显示出含有四配位铝中心。