[(hydridotris(pyrazolyl)borate)W(NO)(PMe3)(4,5-η2-2-methylthiophene)] | 851385-33-6

• 英文名称: [(hydridotris(pyrazolyl)borate)W(NO)(PMe3)(4,5-η2-2-methylthiophene)]
• CAS: 851385-33-6
• 化学式: C₁₇H₂₅BN₇OPSW
• 分子量: 601.133
• InChiKey: UGHIZOPKEFWDKN-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：
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反应信息

• 作为反应物：
  描述：

  [(hydridotris(pyrazolyl)borate)W(NO)(PMe3)(4,5-η2-2-methylthiophene)] 、 diphenylammonium triflate 以 二氯甲烷 为溶剂， 以79.3%的产率得到[(hydridotris(pyrazolyl)borate)W(NO)(PMe3)(S,5-η2-2-methylthiophenium)](OTf)
  参考文献：
  名称：

  Tungsten(0) η²-Thiophene Complexes:  Dearomatization of Thiophene and Its Facile Oxidation, Protonation, and Hydrogenation

  摘要：

  Complexes of the form TpW(NO)(PMe3)(n(2)-thiophene) have been synthesized in 31-40% yield by reduction of TpW(NO)(PMe3)(Br) in the presence of the thiophene ligand. The dynamics of protonation and the subsequent deprotonation for the corresponding 2H-thiophenium complexes have been investigated. Hydrogenation of the uncoordinated double bond was accomplished, and sulfur-carbon, sulfur-oxygen, and carbon-carbon bond-forming reactions were explored with these complexes.

  DOI：

  10.1021/om050050i
• 作为产物：
  描述：

  2-甲基噻吩 、 ((trispyrazolyl)borate)W(NO)(PMe₃)(Br) 在 sodium amalgam 作用下， 以 neat (no solvent) 为溶剂， 以39.9%的产率得到[(hydridotris(pyrazolyl)borate)W(NO)(PMe3)(4,5-η2-2-methylthiophene)]
  参考文献：
  名称：

  Tungsten(0) η²-Thiophene Complexes:  Dearomatization of Thiophene and Its Facile Oxidation, Protonation, and Hydrogenation

  摘要：

  Complexes of the form TpW(NO)(PMe3)(n(2)-thiophene) have been synthesized in 31-40% yield by reduction of TpW(NO)(PMe3)(Br) in the presence of the thiophene ligand. The dynamics of protonation and the subsequent deprotonation for the corresponding 2H-thiophenium complexes have been investigated. Hydrogenation of the uncoordinated double bond was accomplished, and sulfur-carbon, sulfur-oxygen, and carbon-carbon bond-forming reactions were explored with these complexes.

  DOI：

  10.1021/om050050i

文献信息

• The Uncommon Reactivity of Dihapto-Coordinated Nitrile, Ketone, and Alkene Ligands When Bound to a Powerful π-Base
  作者：Edward C. Lis,、David A. Delafuente、Yunqing Lin、Christopher J. Mocella、Michael A. Todd、Weijun Liu、Michal Sabat、William H. Myers、W. Dean Harman

  DOI：10.1021/om060434o

  日期：2006.10.1

  A series of complexes of the form TpM(NO)(L')(eta(2)-L) are prepared ( where L is a nitrile, ketone, or alkene, M = W or Mo, L') PMe3, MeIm, Tp = hydridotris(pyrazolyl)borate). These complexes are subjected to various electrophiles (e.g., alkyl halides, Bronsted acids) to systematically probe the ability of the pi-basic transition metal to affect the reactivity of the dihapto-coordinated ligand. Alkylation is observed at the heteroatom of the ketone and the nitrile, but depending on the reagent, alkylation of the nitrosyl ligand or addition to the complexed d-bond also occurs. The structures of several nitrilium complexes and a rare example of an eta(2)-acetonium complex are also reported.