3,3,5,5-tetra(tert-butyl)-1,1,2,2,4,4-hexamethyl-1,2,4-trisila-3,5-distannacyclopentane | 339048-90-7

• 分子结构分类: 有机化合物 - 有机盐 - 有机金属盐
• 英文名称: 3,3,5,5-tetra(tert-butyl)-1,1,2,2,4,4-hexamethyl-1,2,4-trisila-3,5-distannacyclopentane
• CAS: 339048-90-7
• 化学式: C₂₂H₅₄Si₃Sn₂
• 分子量: 640.347
• InChiKey: VNACCBWGCSORRP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8.62
• 重原子数：
  27
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为产物：
  描述：

  1,4-dilithio-1,1,4,4-tetra(tert-butyl)-tetramethyl-1,4-distanna-2,3-disilabutane 、 二氯二甲基硅烷 以 四氢呋喃 为溶剂， 以25%的产率得到3,3,5,5-tetra(tert-butyl)-1,1,2,2,4,4-hexamethyl-1,2,4-trisila-3,5-distannacyclopentane
  参考文献：
  名称：

  摘要：

  Dilithiated di(stannyl)oligosilanes ((Bu2Sn)-Bu-t(Li)-(SiMe2)(n)-Sn(Li)Bu-t(2); 4, n = 2; 5, n = 3) were synthesized by the reaction of lithium diisopropylamide (LDA) with the alpha,omega -hydrido tin substituted oligosilanes ((Bu2Sn)-Bu-t(H)-(SiMe2)(n)-Sn(H)Bu-t(2); 1, n = 2; 2, n = 3). Surprisingly, the reaction of 1 and 3 ((Bu2Sn)-Bu-t(H)-(SiMe2)(4)-Sn(H)Bu-t(2)) with LDA resulted not in the formation of the lithiated compound, but what one can find is the formation of the 5,5-ditert.butyl-octamethyl-1,2,3,4-tetrasila-5-stannacyclopentane (8) (n = 4) in addition to the expected product 4 (n = 4) and the 3,3,6,6-tetratert.butyl-octamethyl-1,2,4,5-tetrasila-3,6-distan-nacyclohexane (7) (n = 3).Reactions of 4 and 5 with dimethyl and diphenyldichlorosilanes yielding monocyclic Si-Sn derivatives (9-11) are also discussed. The solid-state structures of 7 and 11 were determined by X-ray crystallography.

  DOI：

  10.1002/1521-3749(200103)627:3<453::aid-zaac453>3.0.co;2-6

文献信息

• ——
  作者：Uwe Hermann、Gregor Reeske、Markus Schürmann、Frank Uhlig

  DOI：10.1002/1521-3749(200103)627:3<453::aid-zaac453>3.0.co;2-6

  日期：2001.3

  Dilithiated di(stannyl)oligosilanes ((Bu2Sn)-Bu-t(Li)-(SiMe2)(n)-Sn(Li)Bu-t(2); 4, n = 2; 5, n = 3) were synthesized by the reaction of lithium diisopropylamide (LDA) with the alpha,omega -hydrido tin substituted oligosilanes ((Bu2Sn)-Bu-t(H)-(SiMe2)(n)-Sn(H)Bu-t(2); 1, n = 2; 2, n = 3). Surprisingly, the reaction of 1 and 3 ((Bu2Sn)-Bu-t(H)-(SiMe2)(4)-Sn(H)Bu-t(2)) with LDA resulted not in the formation of the lithiated compound, but what one can find is the formation of the 5,5-ditert.butyl-octamethyl-1,2,3,4-tetrasila-5-stannacyclopentane (8) (n = 4) in addition to the expected product 4 (n = 4) and the 3,3,6,6-tetratert.butyl-octamethyl-1,2,4,5-tetrasila-3,6-distan-nacyclohexane (7) (n = 3).Reactions of 4 and 5 with dimethyl and diphenyldichlorosilanes yielding monocyclic Si-Sn derivatives (9-11) are also discussed. The solid-state structures of 7 and 11 were determined by X-ray crystallography.