[PhC(NtBu)2Si(Cl){N2CH(SiMe3)}]2 | 1353880-94-0

• 英文名称: [PhC(NtBu)2Si(Cl){N2CH(SiMe3)}]2
• CAS: 1353880-94-0
• 化学式: C₃₈H₆₆Cl₂N₈Si₄
• 分子量: 818.244
• InChiKey: GIZXQYUGHGWAOH-UHFFFAOYSA-N

反应信息

• 作为产物：
  描述：

  N,N′-di-tertbutyl(phenylamidinato)chlorosilylene 、 三甲基硅烷化重氮甲烷 以 正己烷 为溶剂， 以29.3%的产率得到[PhC(NtBu)2Si(Cl){N2CH(SiMe3)}]2
  参考文献：
  名称：

  A Remarkable End-On Activation of Diazoalkane and Cleavage of Both C–Cl Bonds of Dichloromethane with a Silylene to a Single Product with Five-Coordinate Silicon Atoms

  摘要：

  The 1:1 reaction of benzamidinato-stabilized chlorosilylene PhC(NtBu)(2)SiCl (1) with CH(SiMe3)N-2 resulted in the formation of colorless [PhC(NtBu)(2)Si(Cl){N2CH(SiMe3)}}(2) (2), which consists of a four-membered Si2N2 ring. Surprisingly, N-2 elimination from the diazoalkane did not occur, but rather an end-on activation of the nitrogen was observed. For the mechanism, we propose the formation of a silaimine complex A as an intermediate, which is formed during the reaction and dimerized under [2 + 2] cydoaddition to 2. In contrast, treatment of 1 with dichloromethane afforded a 2:1 product, [{PhC(NtBu)(2)Si(Cl-2)}(2)CH2} (3), which is obviously formed by oxidative addition under cleavage of both C-Cl bonds and formation of two Si-Cl and two Si-C bonds. Both silicon atoms in 3 are five-coordinate. Compounds 2 and 3 were characterized by single-crystal X-ray studies, multinuclear NMR spectroscopy, and El-mass spectrometry.

  DOI：

  10.1021/om201031n