HIr(1,5-cyclooctadiene)(1,4-bis(diphenylphosphino)butane) | 666827-61-8

• 英文名称: HIr(1,5-cyclooctadiene)(1,4-bis(diphenylphosphino)butane)
• 英文别名: HIr(cod)(dppb)；HIr(1,5-cyclooctadiene)(dppb)
• CAS: 666827-61-8
• 化学式: C₃₆H₄₁IrP₂
• 分子量: 727.889
• InChiKey: AHNMKBNQBAVILO-ONEVTFJLSA-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：
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反应信息

• 作为反应物：
  描述：

  HIr(1,5-cyclooctadiene)(1,4-bis(diphenylphosphino)butane) 以 氘代苯 为溶剂， 生成 HIr(cod)(dppb)
  参考文献：
  名称：

  Organoiridium compounds with bidentate phosphines as highly regioselective catalysts for alkynes cyclotrimerization

  摘要：

  The iridium derivatives HIr(cod)(L-L) (cod = 1,5-cyclooctadiene; L-L = Ph2PCH2PPh2 (dppm); Ph2P(CH2)(2)PPh2 (dppe); Ph2P(CH2)(3)PPh2 (dppp); Ph-2(CH2)(4)PPh2 (dppb); o-C6H4(PPh2)(2); Cy2P(CH2)(2)PCy2 (dcpe); o-Me2NC6H4PPh2 (P-NMe2)) and Ir(OMe)(cod)(dppe-F) (dppe-F = (C6F5)(2)P(CH2)(2)P(C6F5)(2)) are active catalysts for the cyclotrimerization of phenylacetylene and substituted derivatives. The nature of the phosphine ligand has a pronounced effect on catalytic activity and selectivity of the reactions: in some cases (L-L = dcpe, dppe-F) mixtures of oligomerization and polymerization products are obtained, in others only cyclomerization is observed, with regioselectivities as high as 100% of the 1,2,4-trisubstituted benzenes in the reactions catalyzed by HIr(cod)(dppm). The observed regioselectivity is discussed in terms of preferential formation of one of the possible metallacyclic intermediates of the catalytic reaction. (C) 2004 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.ica.2004.03.033
• 作为产物：
  描述：

  (1,5-cyclooctadiene)(methoxy)iridium(I) dimer 、 1,4-双(二苯基膦)丁烷 以 甲醇 为溶剂， 生成 HIr(1,5-cyclooctadiene)(1,4-bis(diphenylphosphino)butane)
  参考文献：
  名称：

  Organoiridium compounds with bidentate phosphines as highly regioselective catalysts for alkynes cyclotrimerization

  摘要：

  The iridium derivatives HIr(cod)(L-L) (cod = 1,5-cyclooctadiene; L-L = Ph2PCH2PPh2 (dppm); Ph2P(CH2)(2)PPh2 (dppe); Ph2P(CH2)(3)PPh2 (dppp); Ph-2(CH2)(4)PPh2 (dppb); o-C6H4(PPh2)(2); Cy2P(CH2)(2)PCy2 (dcpe); o-Me2NC6H4PPh2 (P-NMe2)) and Ir(OMe)(cod)(dppe-F) (dppe-F = (C6F5)(2)P(CH2)(2)P(C6F5)(2)) are active catalysts for the cyclotrimerization of phenylacetylene and substituted derivatives. The nature of the phosphine ligand has a pronounced effect on catalytic activity and selectivity of the reactions: in some cases (L-L = dcpe, dppe-F) mixtures of oligomerization and polymerization products are obtained, in others only cyclomerization is observed, with regioselectivities as high as 100% of the 1,2,4-trisubstituted benzenes in the reactions catalyzed by HIr(cod)(dppm). The observed regioselectivity is discussed in terms of preferential formation of one of the possible metallacyclic intermediates of the catalytic reaction. (C) 2004 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.ica.2004.03.033