5-borane-5-isopropyl-2-trimethylsilanyl-[1,3,5]-dithiazinane | 1548941-78-1

• 英文名称: 5-borane-5-isopropyl-2-trimethylsilanyl-[1,3,5]-dithiazinane
• CAS: 1548941-78-1
• 化学式: C₉H₂₄BNS₂Si
• 分子量: 249.325
• InChiKey: DNPVBJVWOZCIIP-UHFFFAOYSA-N

反应信息

• 作为产物：
  描述：

  三甲基氯硅烷 、 在 叔丁基锂 作用下， 以 四氢呋喃 、 正己烷 为溶剂， 反应 2.5h， 以340 mg的产率得到5-borane-5-isopropyl-2-trimethylsilanyl-[1,3,5]-dithiazinane
  参考文献：
  名称：

  Structural analyses of 2-triorganylsilyl- and 2-triorganylstannyl derivatives of 5-alkyl-[1,3,5]-dithiazinanes. Do S⋯Si and S⋯Sn interactions exist?

  摘要：

  A series of 2 - R-3'E (E = Si or Sn; R' = Me or Ph) derivatives of 5-R-[1,3,5]-dithiazinanes (R = Me, iPr, tBu) are reported, as well as some of their N-BH3 adducts. Structures were determined by Si-29, Sn-119, B-11, C-13 and H-1 NMR and X ray diffraction analyses. Minimum energy conformations were calculated by HF/631++G(d,p) and B3LYP/6-31++G(d,p) methods. Preferred conformations and steric and stereo-electronic interactions are analyzed. In the solid state the ring conformation is a chair with the N-R group in axial and the 2-substituents in equatorial position. The Si or Sn atoms linked to C-2 have short distances to the two sulfur atoms, interpreted as Si center dot center dot center dot S and Sn center dot center dot center dot S stabilizing contacts. The Sn-119 NMR chemical shifts and (1)J(C-13, Sn-119) coupling constants evidenced weak S center dot center dot center dot Sn coordination bonds. Substitution reactions at C2 performed in N-BH3 adducts of 2-lithium-5-methyl-[1,3,5]-dithiazinanes of anchored conformation proceed with retention of C2 configuration. (c) 2013 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2013.07.058