二吡咯基二甲氧基硅烷 | 180536-06-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 哌啶类
• 中文名称: 二吡咯基二甲氧基硅烷
• 英文名称: di(piperidinyl)dimethoxysilane
• 英文别名: Dipiperidinodimethoxysilane；dimethoxy-di(piperidin-1-yl)silane
• CAS: 180536-06-5
• 化学式: C₁₂H₂₆N₂O₂Si
• 分子量: 258.436
• InChiKey: PNKYFFIJNYUHTB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.69
• 重原子数：
  17
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  24.9
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  二吡咯基二甲氧基硅烷 、 三乙基铝 以 氘代氯仿 为溶剂， 生成 (triethylaluminium)(di(piperidinyl)dimethoxysilane)
  参考文献：
  名称：

  Study on aminosilane compounds as external electron donors in isospecific propylene polymerization

  摘要：

  Propylene polymerization has been studied with a use of MgCl2 supported titanium solid catalyst in combination with triethylaluminium (TEA) and a monoamino- or diamino-dimethoxysilane as an external electron donor. The ammosilanes having a bulkier amino group, or two amino groups show a tendency to give lower isotacticity and broader molecular weight distribution of polymers obtained. Specifically the aminosilanes with piperidinyl group(s) were found to be highly isospecific external donors. C-13 and H-1 NMR studies on the mixtures of TEA and di(piperidinyl)dimethoxysilane (DPIP) indicate that TEA forms a Lewis acidibase adduct through the interaction of aluminum and oxygen atom of methoxy group in the silane as have been reported in the case of TEA and di(hydrocarbyl)dimethoxysilanes. (C) 2002 Elsevier Science B.V. All rights reserved.

  DOI：

  10.1016/s1381-1169(02)00465-x

文献信息

• Study on aminosilane compounds as external electron donors in isospecific propylene polymerization
  作者：Hiroyuki Ikeuchi、Takefumi Yano、Shigeru Ikai、Hiroshi Sato、Jun Yamashita

  DOI：10.1016/s1381-1169(02)00465-x

  日期：2003.2

  Propylene polymerization has been studied with a use of MgCl2 supported titanium solid catalyst in combination with triethylaluminium (TEA) and a monoamino- or diamino-dimethoxysilane as an external electron donor. The ammosilanes having a bulkier amino group, or two amino groups show a tendency to give lower isotacticity and broader molecular weight distribution of polymers obtained. Specifically the aminosilanes with piperidinyl group(s) were found to be highly isospecific external donors. C-13 and H-1 NMR studies on the mixtures of TEA and di(piperidinyl)dimethoxysilane (DPIP) indicate that TEA forms a Lewis acidibase adduct through the interaction of aluminum and oxygen atom of methoxy group in the silane as have been reported in the case of TEA and di(hydrocarbyl)dimethoxysilanes. (C) 2002 Elsevier Science B.V. All rights reserved.