(tBu-isocyanido)(1,3,5-trimethylbenzene)hydrido(phenyl)osmium(II) | 259826-12-5

• 英文名称: (tBu-isocyanido)(1,3,5-trimethylbenzene)hydrido(phenyl)osmium(II)
• CAS: 259826-12-5
• 化学式: C₂₀H₂₇NOs
• 分子量: 471.641
• InChiKey: RVVVRGVEFDXYIX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
  None

反应信息

• 作为反应物：
  描述：

  盐酸 、 (tBu-isocyanido)(1,3,5-trimethylbenzene)hydrido(phenyl)osmium(II) 以 二氯甲烷 为溶剂， 以91%的产率得到(tBu-isocyanido)(1,3,5-trimethylbenzene)chloro(hydrido)osmium(II)
  参考文献：
  名称：

  A series of mono- and dihydrido- as well as mono- and dimethylosmium(II) complexes containing [(mes)Os(CNR)] as a building block

  摘要：

  The dihydridoosmium(II) complexes [(mes)OsH2(CNR)] (7-10) were prepared in excellent yield from the dichloroosmium(II) precursors [(mes)OsCl2(CNR)] upon treatment with 10% magnesium amalgam in THF in the presence of ethanol. Under similar conditions, the methylisocyanide derivative [(mes)OsH2(CNMe)] (6) as well as the monohydrido compounds [(mes)OsH(X)(CNMe)] (11, 13) were obtained. The same methodology using [(mes)OsCl(C6H5)(CNR)] as the starting material was applied for the preparation of the hydrido(phenyl)osmium(II) complexes [(mes)OsH(C6H5)(CNR)] (19-23) which were also isolated in almost quantitative yield. Treatment of these complexes with HCl in CH2Cl2 at -78 degrees C led to the cleavage of the osmium-phenyl but not the osmium-hydride bond. Reactions of [(mes)OsCl2(CNR)] with MeLi/LiCl gave exclusively the dimethylosmium(II) compounds [(mes)Os(CH3)(2)(CNR)] (29-32) while the corresponding reactions with MeLi/LiI afforded a mixture of 29-32 and the monomethyl derivatives [(mes)OsI(Me)(CNR)] (26, 33-35). A cyclic carbeneosmium(II) complex 37 was obtained from [(mes)OsCl2(CNPh)] and MeLi/LiI followed by treatment with deactivated Al2O3. The etheneosmium(0) compound [(mes)Os(C2H4)(CNMe)] (38) was prepared from the dimethylosmium(II) precursor 29 and briefly investigated as starting material for photochemical C-H activation reactions. (C) 2000 Elsevier Science S.A. All rights reserved.

  DOI：

  10.1016/s0022-328x(99)00394-0
• 作为产物：
  描述：

  (mesitylene)phenyl(t-butylisocyano)osmium(II) iodide 在 amalgamated magnesium 、 乙醇 作用下， 以 四氢呋喃 为溶剂， 以88%的产率得到(tBu-isocyanido)(1,3,5-trimethylbenzene)hydrido(phenyl)osmium(II)
  参考文献：
  名称：

  A series of mono- and dihydrido- as well as mono- and dimethylosmium(II) complexes containing [(mes)Os(CNR)] as a building block

  摘要：

  The dihydridoosmium(II) complexes [(mes)OsH2(CNR)] (7-10) were prepared in excellent yield from the dichloroosmium(II) precursors [(mes)OsCl2(CNR)] upon treatment with 10% magnesium amalgam in THF in the presence of ethanol. Under similar conditions, the methylisocyanide derivative [(mes)OsH2(CNMe)] (6) as well as the monohydrido compounds [(mes)OsH(X)(CNMe)] (11, 13) were obtained. The same methodology using [(mes)OsCl(C6H5)(CNR)] as the starting material was applied for the preparation of the hydrido(phenyl)osmium(II) complexes [(mes)OsH(C6H5)(CNR)] (19-23) which were also isolated in almost quantitative yield. Treatment of these complexes with HCl in CH2Cl2 at -78 degrees C led to the cleavage of the osmium-phenyl but not the osmium-hydride bond. Reactions of [(mes)OsCl2(CNR)] with MeLi/LiCl gave exclusively the dimethylosmium(II) compounds [(mes)Os(CH3)(2)(CNR)] (29-32) while the corresponding reactions with MeLi/LiI afforded a mixture of 29-32 and the monomethyl derivatives [(mes)OsI(Me)(CNR)] (26, 33-35). A cyclic carbeneosmium(II) complex 37 was obtained from [(mes)OsCl2(CNPh)] and MeLi/LiI followed by treatment with deactivated Al2O3. The etheneosmium(0) compound [(mes)Os(C2H4)(CNMe)] (38) was prepared from the dimethylosmium(II) precursor 29 and briefly investigated as starting material for photochemical C-H activation reactions. (C) 2000 Elsevier Science S.A. All rights reserved.

  DOI：

  10.1016/s0022-328x(99)00394-0