[Co(CO)2(PMe3)3](trifluoromethanesulfonate) | 1238396-95-6

• 英文名称: [Co(CO)2(PMe3)3](trifluoromethanesulfonate)
• CAS: 1238396-95-6
• 化学式: CF₃O₃S*C₁₁H₂₇CoO₂P₃
• 分子量: 492.319
• InChiKey: RWQYOSSBCWOYRB-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 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

• 作为产物：
  描述：

  一氧化碳 、 [Co(PMe3)4](trifluoromethanesulfonate) 以 not given 为溶剂， 生成 [Co(CO)2(PMe3)3](trifluoromethanesulfonate)
  参考文献：
  名称：

  Synthesis, Structure, Spectroscopy, and Reactivity of Oxapentadienyl−Cobalt−Phosphine Complexes^,

  摘要：

  The first examples of oxapentadienyl-cobalt complexes have been synthesized and structurally characterized. Treatment of (Cl)Co(PMe3)(3) with potassium oxapentadienide produces ((1,2,3-eta)-5-oxapentadienyl)Co(PMe3)(3) (1), while the reaction of (Cl)Co(PMe3)(3) with potassium 2,4-dimethyloxapentadienide generates ((1,2,3-eta)-2,4-dimethyl-5-oxapentadienyl)Co(PMe3)(3) (2). Both 1 and 2 undergo ligand substitution reactions when treated with excess carbon monoxide. Compound 1 reacts with 1 equiv of CO to produce ((1,2,3-eta)-5-oxapentadienyl)Co(PMe3)(2)(CO) (3), while 2 undergoes a double CO substitution to generate ((1,2,3-eta)-2,4-dimethyl-5-oxapentadienyl)Co(PMe3)(CO)(2) (4). Compound 3 can also be synthesized by reacting (Cl)Co(PMe3)(2)(CO)(2) with potassium oxapentadienide, but the analogous reaction involving potassium 2,4-dimethyloxapentadienide results in reduction of the cobalt starting material and production of the Co(0) dimer (CO)(PMe3)(2)Co(PMe)(2)Co(PMe3)(2)(Co) (5). Treatment of 1 with triflic acid (HO3SCF3) or methyl triflate (MeO3SCF3) results in electrophilic attack at oxygen and production of (eta(4)-butadienol)Co(PMe3)(3)+O3SCF3- (6) or (eta(4)-butadienyl methyl ether)Co(PMe3)3+O3SCF3- (7). Treatment of 2 with triflic acid or methyl triflate also results in electrophilic attack at oxygen; however, these products are unstable and rapidly lose their protonated or methylated ligands. The resulting Co(PMe3)4+O3SCF3-, generated in situ, reacts with excess carbon monoxide to produce Co(PMe3)(3)(CO)(2)+O3SCF3- (8). Compounds 1-8 have been characterized by single-crystal X-ray diffraction.

  DOI：

  10.1021/om100361a

文献信息

• Synthesis, Structure, Spectroscopy, and Reactivity of Azapentadienyl–Cobalt–Phosphine Complexes
  作者：John R. Bleeke、Wipark Anutrasakda、Nigam P. Rath

  DOI：10.1021/om2011326

  日期：2012.3.26

  contributing to the overall bonding picture. Treatment of compound 4 with P(OMe)3 or CO leads to displacement of (tert-butylamino)butadiene (rather than PMe3 ligand exchange) and formation of Co(PMe3)2[P(OMe)3]3+O3SCF3– (7) or Co(PMe3)3(CO)2+O3SCF3– (8), respectively. Compound 5 reacts readily with a another 1 equiv of triflic acid, again at the nitrogen center. The dicationic product, 9, possesses an η4-(ter

  我们报告了氮杂戊二烯基-钴配合物的第一个实例的合成，结构，光谱学和反应性。（CL）的Co处理（PME 3）3与钾叔-butylazapentadienide产生（（1,2,3-η 3）-5-叔-butylazapentadienyl）的Co（PME 3）3（1），为暗红色固体。化合物1经历配体取代反应与亚磷酸三甲酯和一氧化碳，产生（（1,2,3-η 3）-5-叔-butylazapentadienyl）的Co（PME 3）2 [P（OME）3 ]（2）和（ （1,2,3-η3）-5-叔丁基氮杂戊二烯基）Co（PMe 3）2（CO）（3）。化合物1 - 3与1个当量的三氟甲磺酸的（HO反应3 SCF 3）在氮气azapentadienyl，得到相应的η 4 - （叔-丁基氨基） -丁二烯-钴络合物（4 - 6）。这些阳离子具有特别长的联合C4键长，表明η 3共振结构有助于整体结合的画面。用P