(((1R,5R,7R,9S,11S,13R)-1,3,5,7,9,11,13-heptacyclohexyl-2,4,6,8,10,12,14,15,16,17-decaoxa-1,3,5,7,9,11,13-heptasilatetracyclo[7.5.1.13,7.15,11]heptadecan-13-yl)oxy)tetramethyl-l5-stibane | 140202-77-3

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机类金属化合物
• 英文名称: (((1R,5R,7R,9S,11S,13R)-1,3,5,7,9,11,13-heptacyclohexyl-2,4,6,8,10,12,14,15,16,17-decaoxa-1,3,5,7,9,11,13-heptasilatetracyclo[7.5.1.13,7.15,11]heptadecan-13-yl)oxy)tetramethyl-l5-stibane
• CAS: 140202-77-3
• 化学式: C₄₆H₈₉O₁₁SbSi₇
• 分子量: 1136.55
• InChiKey: LSXQAFPXTFWLBD-PSKZHPKWSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  14.55
• 重原子数：
  65.0
• 可旋转键数：
  9.0
• 环数：
  11.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  101.53
• 氢给体数：
  0.0
• 氢受体数：
  11.0

反应信息

• 作为产物：
  描述：

  tetramethylantimony hydroxide 、 (3S,5S)-1,3,5,7,9,11,13-heptacyclohexyl-2,4,6,8,10,12,14,15,16,17-decaoxa-1,3,5,7,9,11,13-heptasilatetracyclo[7.5.1.13,7.15,11]heptadecan-13-ol 以 氘代苯 为溶剂， 生成 (((1R,5R,7R,9S,11S,13R)-1,3,5,7,9,11,13-heptacyclohexyl-2,4,6,8,10,12,14,15,16,17-decaoxa-1,3,5,7,9,11,13-heptasilatetracyclo[7.5.1.13,7.15,11]heptadecan-13-yl)oxy)tetramethyl-l5-stibane
  参考文献：
  名称：

  Reactions of incompletely-condensed silsesquioxanes with pentamethylantimony: a new synthesis of metallasilsesquioxanes with important implications for the chemistry of silica surfaces

  摘要：

  The reactions of the incompletely condensed polyhedral oligosilsesquioxanes (c-C6H11)7Si7O9(OH)3 (1a), (c-C6H11)7Si7O9(OTMS)(OH)2, (2a), (c-C6H11)7Si7O9(OTMS)2(OH) (3a), (c-C6H11)8Si8O10(OH)2 (4a), and (c-C6H11)7Si7O10(OH) (5a) with excess Me5Sb result in the formation of the corresponding stibonium-substituted silsesquioxanes (c-C6H11)7Si7O9(OSbMe4)3 (1b), (c-C6H11)7Si7O9(OTMS)(OSbMe4)2 (2b), (c-C6H11)7Si7O9(OTMS)2(OSbMe4) (3b), (c-C6H11)8Si8O10(OSbMe4)2 (4b), and (c-C6H11)7Si7O10(OSbMe4) (5b) in high yields. These stibonium siloxides show enhanced reactivity toward main-group and transition-metal halide complexes and provide an alternative route for the preparation of metallasilsesquioxanes. The reaction of 1a with 1 equiv of Me5Sb is much faster than the reactions of Me5Sb with silanols containing fewer than three mutually hydrogen-bonded siloxy groups. This suggests that multiply hydrogen-bonded surface sites are more reactive toward nucleophilic organometallic reagents than either isolated surface silanols or isolated pairs of geminally or vicinally hydrogen-bonded siloxy groups.

  DOI：

  10.1021/ja00036a038