N-trimethylsilyl-μ-aminodiborane(6) | 186796-06-5

• 英文名称: N-trimethylsilyl-μ-aminodiborane(6)
• 英文别名: N-trimethylsilyl-μ-aminodiborane
• CAS: 186796-06-5
• 化学式: C₃H₁₅B₂NSi
• 分子量: 114.866
• InChiKey: FYNJCFFLLCRTQF-UHFFFAOYSA-N

计算性质

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

• 作为反应物：
  描述：

  N-trimethylsilyl-μ-aminodiborane(6) 以 neat (no solvent) 为溶剂， 生成 N-Trimethylsilyl-borazan
  参考文献：
  名称：

  Reaction of Hexamethyldisilazane with Borane in Tetrahydrofuran

  摘要：

  AbstractHexamethyldisilazane 1 reacts with borane in tetrahydrofuran (THFBH3, 2) first by formation of an adduct (Me3Si)2NHBH3 (3), and then either to the N,N‐bis‐(trimethylsilyl)‐μ‐aminodiborane 5 or to the mixture of 5 and N‐trimethylsilyl‐μ‐aminodiborane(6) 6, depending on the reaction conditions. The compounds 5 and 6 can be quantitatively converted to the N,N′,N″‐tris(trimethylsilyl)borazine 4. Three intermediates can be identified, namely N,N‐bis(trimethylsilyl)borane 7, N,N‐bis(trimethylsilyl)amino(N′‐trimethylsilylamino)borane 8 and N‐trimethylsilylaminoborane‐trimer. All products and intermediates were characterized by multinuclear NMR spectroscopy, and coupling constant 1J(29Si, 15N) were measured from 29Si NMR spectra by using the Hahn‐echo‐extended (HEED) INEPT pulse sequence.

  DOI：

  10.1002/zaac.19966221208
• 作为产物：
  描述：

  硼烷四氢呋喃络合物 、 N-(l4-boraneyl)-1,1,1-trimethyl-N-(trimethylsilyl)silanamine 以 四氢呋喃 为溶剂， 以45%的产率得到N-trimethylsilyl-μ-aminodiborane(6)
  参考文献：
  名称：

  Reaction of Hexamethyldisilazane with Borane in Tetrahydrofuran

  摘要：

  AbstractHexamethyldisilazane 1 reacts with borane in tetrahydrofuran (THFBH3, 2) first by formation of an adduct (Me3Si)2NHBH3 (3), and then either to the N,N‐bis‐(trimethylsilyl)‐μ‐aminodiborane 5 or to the mixture of 5 and N‐trimethylsilyl‐μ‐aminodiborane(6) 6, depending on the reaction conditions. The compounds 5 and 6 can be quantitatively converted to the N,N′,N″‐tris(trimethylsilyl)borazine 4. Three intermediates can be identified, namely N,N‐bis(trimethylsilyl)borane 7, N,N‐bis(trimethylsilyl)amino(N′‐trimethylsilylamino)borane 8 and N‐trimethylsilylaminoborane‐trimer. All products and intermediates were characterized by multinuclear NMR spectroscopy, and coupling constant 1J(29Si, 15N) were measured from 29Si NMR spectra by using the Hahn‐echo‐extended (HEED) INEPT pulse sequence.

  DOI：

  10.1002/zaac.19966221208

文献信息

• Synthesis of bicyclic N-pyrrolylboranes via hydroboration of 2-vinyl and 2-allylpyrrole
  作者：Bernd Wrackmeyer、Bernd Schwarze

  DOI：10.1016/s0022-328x(96)06921-5

  日期：1997.4

  The hydroboration of 2-vinyl and 2-allylpyrrole with various hydroborating agents [Et2BH2BEt2, (9-BBN)2, (CH2)4BH2B(CH2)4, thex(H)BH2B(H)thex, Az-BH2—THF (Az = pyrrole, 2,5-dimethylpyrrole, indole), Et2O-BH2Cl, Me3Si(H)NB2H5] leads in most cases finally to B-substituted bicyclic N-pyrrolylboranes 8–11, 15–20. In the case of the reaction with tetraalkyldiboranes(6), stable intramolecular 2-H-pyrrole-borane

  2-乙烯基和2-烯丙基吡咯与各种硼氢化剂[Et 2 BH 2 BEt 2，（9-BBN）2，（CH 2）4 BH 2 B（CH 2）4，thex（H）BH 2 B的硼氢化（H）thex，Az-BH 2 -THF（Az =吡咯，2,5-二甲基吡咯，吲哚），Et 2 O-BH 2 Cl，Me 3 Si（H）NB 2 H 5 ]在大多数情况下最终导致乙氨基取代二环式的N- pyrrolylboranes 8-11，15-20。与tetraalkyldiboranes反应（6）的情况下，稳定的分子内2-H吡咯-硼烷加合物6，7，12-14首先形成，其在的情况下6，12和13，可以转换成双环的N- pyrrolylboranes 8，15和16分别。尽管双环N-吡咯基硼烷中的空间条件是有利的，但11 B，13 C和14 N NMR数据不支持硼原子与杂芳族吡咯体系之间的任何显着π相互作用。