HIr(1,5-cyclooctadiene)(P(o-MeOC6H4)Ph2) | 642441-48-3

• 英文名称: HIr(1,5-cyclooctadiene)(P(o-MeOC6H4)Ph2)
• 英文别名: HIr(COD)[P(p-OMeC6H4)PPh2]2；HIr(cod)(P(o-MeOC6H4)Ph2)2
• CAS: 642441-48-3
• 化学式: C₄₆H₄₇IrO₂P₂
• 分子量: 886.045
• InChiKey: BPEIVXQSXINQCB-JXNOXZOESA-N

计算性质

• 辛醇/水分配系数(LogP)：
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反应信息

• 作为产物：
  描述：

  (1,5-cyclooctadiene)(methoxy)iridium(I) dimer 、 对茴香基二苯基膦 以 not given 为溶剂， 生成 HIr(1,5-cyclooctadiene)(P(o-MeOC6H4)Ph2)
  参考文献：
  名称：

  Directing iridium-catalyzed C–C bond formation by selection of the ancillary ligands: Polymerization and cyclotrimerization of alkynes

  摘要：

  The ability of organoiridium derivatives of catalyzing oligomerization and polymerization of terminal alkynes is markedly influenced by the nature of non-participative ligands coordinated to the metal. The dimeric species [Ir(cod)Cl](2) and [Ir(cod)(OMe)](2) (cod = 1,5-cyclooctadiene) as well as the phosphine complexes HIr(cod)(PR(3))(2) (PR(3) = PPh(3), P(p-MeOC(6)H(4))(3), P(o-MeOC(6)H(4))Ph(2), PCyPh(2)) catalyze the polymerization reaction, whereas the diphosphine derivatives HIr(cod)(P-P) (P-P = Ph(2)P(CH(2)) nPPh(2) (n = 1-4), o-C(6)H(4)(PPh(2))(2)) promote the regioselective formation of 1,2,4-trisubstituted benzenes. On the other hand, the iridium complexes with nitrogen chelating ligands Ir(cod)(N-N) X and Ir(hd)(N-N) X (hd = 1,5-hexadiene; N-N = 1,10-phenanthroline and substituted derivatives; X = halogen) catalyze alkynes polymerization. In most cases one catalytic reaction predominates over the other possible routes, so that polymerization often takes place in the absence of oligomerization side reactions, and conversely cyclotrimerization is rarely accompanied by formation of either polyene or dimers. (C) 2009 Elsevier B. V. All rights reserved.

  DOI：

  10.1016/j.ica.2009.03.030

文献信息

• Iridium-catalyzed formation of trans-polyphenylacetylene by alkyne polymerization
  作者：Mauro Marigo、Dunja Millos、Nazario Marsich、Erica Farnetti

  DOI：10.1016/s1381-1169(03)00415-1

  日期：2003.10

  The iridium(I) compounds HIr(cod)(PR3)(2) (cod: 1,5-cyclooctadiene; PR3: Ph-3, P(p-MeOC6H4)(3), P(o-MeOC6H4)Ph-2, PCyPh2, PCy2Ph) were employed as catalyst precursors for the polymerization of phenylacetylene. The polyene was formed as the major product with all the catalysts except the PCy2Ph derivative, which promoted preferential formation of oligomers. In all cases the polymerization reactions were highly stereoselective, yielding 100% trans-polyphenylacetylene. From the catalytic mixtures the iridium(III) derivatives fac-HIr(CdropCPh)(2)(PR3)(3) (PR3: PPh3, P(p-MeOC6H4)(3)) were isolated. The results of spectroscopic studies are also reported, which provide information on the evolution of the iridium precursors during the catalytic reaction. (C) 2003 Elsevier B.V. All rights reserved.