(S)-[2,2'-bis(tert-butyldimethylsilylamido)-6,6'-dimethylbiphenyl]YCl(THF)2 | 255867-05-1

• 英文名称: (S)-[2,2'-bis(tert-butyldimethylsilylamido)-6,6'-dimethylbiphenyl]YCl(THF)2
• 英文别名: (2,2'-bis((tert-butyldimethylsilyl)amido)-6,6'-dimethylbiphenyl)YCl(tetrahydrofuran)2
• CAS: 255867-05-1；239134-31-7
• 化学式: C₃₄H₅₈ClN₂O₂Si₂Y
• 分子量: 707.377
• InChiKey: GEBZWSURFNPSAX-UHFFFAOYSA-M

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：

  (S)-[2,2'-bis(tert-butyldimethylsilylamido)-6,6'-dimethylbiphenyl]YCl(THF)2 在 silicone grease 作用下， 以 四氢呋喃 、 乙醚 为溶剂， 以50%的产率得到(2,2'-bis((tert-butyldimethylsilyl)amido)-6,6'-dimethylbiphenyl)Y(OSiMe3)(tetrahydrofuran)2
  参考文献：
  名称：

  Yttrium Complexes of the Chelating, C₂-Symmetric, Bis(silylamido)biphenyl Ligand [DADMB]^2- (={[6,6‘-Me₂-(C₆H₃)₂](2,2‘-NSiMe₂^tBu)₂}^2-)

  摘要：

  The yttrium bis(silylamido)biphenyl complex [DADMB]YCl(THF)(2) (2; DADMB = 2,2'-bis((tert-butyldimethylsilyl)amido)-6,6'-dimethylbiphenyl) was prepared from Li-2[DADMB].2THF and YCl3(THF)(3), and its structure was determined by X-ray crystallography. Compound 2 reacts with MeLi and (Me3Si)(2)CHLi to give the corresponding alkyl derivatives [DADMB]YMe(THF)(2) (3) and [DADMB]Y[CH(SiMe3)(2)](THF)(OEt2) (5), respectively. In the presence of silicone grease, the reaction of 2 with MeLi produces the yttrium trimethylsiloxide complex [DADMB]Y(OSiMe3)(THF)(2) (4), which was also crystallographically characterized. Both 3 and 5 react with phenylsilane or H-2 to give the insoluble, dimeric yttrium hydride {[DADMB]Y(mu-H)(THF)}(2). C6H6 (6) The alkyl derivatives 3 and 5 exhibit only limited olefin polymerization activity; however, the hydride 6 reacts rapidly with ethylene or 1-hexene to give a single insertion product. The resulting yttrium ethyl complex 7 was structurally characterized. Compound 6 reacts with pyridine to produce a mixture of the isomeric 1,2- and 1,4-insertion products 9 and 10, [DADMB]Y(NC5H6)(pyr)(2). Compound 9 converts quantitatively to 10 upon heating.

  DOI：

  10.1021/om9901170
• 作为产物：
  描述：

  [YCl3(tetrahydrofuran)3] 、 以 四氢呋喃 为溶剂， 以92%的产率得到(S)-[2,2'-bis(tert-butyldimethylsilylamido)-6,6'-dimethylbiphenyl]YCl(THF)2
  参考文献：
  名称：

  Yttrium Complexes of the Chelating, C₂-Symmetric, Bis(silylamido)biphenyl Ligand [DADMB]^2- (={[6,6‘-Me₂-(C₆H₃)₂](2,2‘-NSiMe₂^tBu)₂}^2-)

  摘要：

  The yttrium bis(silylamido)biphenyl complex [DADMB]YCl(THF)(2) (2; DADMB = 2,2'-bis((tert-butyldimethylsilyl)amido)-6,6'-dimethylbiphenyl) was prepared from Li-2[DADMB].2THF and YCl3(THF)(3), and its structure was determined by X-ray crystallography. Compound 2 reacts with MeLi and (Me3Si)(2)CHLi to give the corresponding alkyl derivatives [DADMB]YMe(THF)(2) (3) and [DADMB]Y[CH(SiMe3)(2)](THF)(OEt2) (5), respectively. In the presence of silicone grease, the reaction of 2 with MeLi produces the yttrium trimethylsiloxide complex [DADMB]Y(OSiMe3)(THF)(2) (4), which was also crystallographically characterized. Both 3 and 5 react with phenylsilane or H-2 to give the insoluble, dimeric yttrium hydride {[DADMB]Y(mu-H)(THF)}(2). C6H6 (6) The alkyl derivatives 3 and 5 exhibit only limited olefin polymerization activity; however, the hydride 6 reacts rapidly with ethylene or 1-hexene to give a single insertion product. The resulting yttrium ethyl complex 7 was structurally characterized. Compound 6 reacts with pyridine to produce a mixture of the isomeric 1,2- and 1,4-insertion products 9 and 10, [DADMB]Y(NC5H6)(pyr)(2). Compound 9 converts quantitatively to 10 upon heating.

  DOI：

  10.1021/om9901170

文献信息

• Hydrosilylation Catalysis by <i>C</i>₂-Symmetric Bis(silylamido) Complexes of Yttrium
  作者：Tomislav I. Gountchev、T. Don Tilley

  DOI：10.1021/om990690j

  日期：1999.12.1

  (1), is an active olefin hydrosilylation catalyst. This system represents the first use of a d0 metal complex with non-Cp ligands in the catalytic hydrosilylation of olefins. Studies of the reactivity and regio- and enantioselectivity for various olefins and silanes are presented. High preference for terminal addition in the case of aliphatic olefins is observed, while aromatic olefins exhibit preference

  氢化钇[DADMB] YH（THF）} 2（2； DADMB = 2,2'-双（叔丁基二甲基硅酰胺基）-6,6'-二甲基联苯），是从[DADMB] YMe（THF）原位方便地生成的图2（1）是活性烯烃氢化硅烷化催化剂。该系统代表广告0的首次使用烯烃催化硅氢加成反应中具有非Cp配体的金属配合物。提出了对各种烯烃和硅烷的反应性以及区域和对映选择性的研究。在脂族烯烃的情况下，观察到对末端加成的高度偏好，而芳族烯烃对2，1-加成表现出偏好。伯硅烷和仲硅烷都已被使用。对手性催化剂的对映选择性的初步研究表明，降冰片烯与PhSiH 3的硅氢加成反应可实现90％ee。动力学研究支持一种机制，该机制与早期过渡金属物种催化的氢化硅烷化反应所公认的机制一致，该机制涉及快速将烯烃插入YH键中，然后通过Si-C键形成生成的钇烷基和硅烷的σ键复分解反应。 。