| 174194-83-3

• CAS: 174194-83-3
• 化学式: C₂₀H₂₉S₂Ta
• 分子量: 514.53
• InChiKey: JRYKGQSNSFWQJK-UHFFFAOYSA-N

反应信息

• 作为反应物：
  描述：

  、 以 四氢呋喃 为溶剂， 生成 、 (C5Me5)Ta(η(5),η(1)-C5Me4SH2S)TaS
  参考文献：
  名称：

  Preparation and Reactivity of Peralkylated Tantalocene Sulfur Complexes Having a Fulvenoid Substructure

  摘要：

  The equilibrium mixture of Cp*(eta(6)-C(5)Me(4)-CH2)TaH2 and [Cp*2TaH] reacts with elemental sulfur to give Cp*Ta-2(eta(2)-S-2)H (1) and Cp*(eta(6)-C(5)Me(4)CH(2))Ta-(eta(2)-S-2) (2). Irradiation of 2 by sunlight in the presence of sulfur results in sulfur insertion into the Ta-methylene bond to giveCp*(eta(6)-C(5)Me(4)CH(2)S)Ta(eta(2)-S-2) (4). The same reaction in the absence of sulfur produces Cp*(eta(6)-C(5)Me(4)CH(2)S)Ta(=S) (5), in which the Ta(eta(2)-S-2) group is transformed into a Ta=S moiety accompanied by a migratory sulfur insertion into a Ta-C bond. As a byproduct in these reactions, C*Ta-2(=S)SH (3), which is an isomerization product of the always present 1, is formed. These reactions provide a new insight into the uslfur chemistry of metallocenes having a fulvenoid substructure. All products are characterized by means of IR-, H-1-, C-13-NMR spectra.

  DOI：

  10.1021/om950745r
• 作为产物：
  描述：

  1,2,3,4,5,6,7,8-八硫杂环辛烷 、 Cp₂*TaCl₂ 在 叔丁基锂 作用下， 以 四氢呋喃 、 正戊烷 为溶剂， 生成 、
  参考文献：
  名称：

  Preparation and Reactivity of Peralkylated Tantalocene Sulfur Complexes Having a Fulvenoid Substructure

  摘要：

  The equilibrium mixture of Cp*(eta(6)-C(5)Me(4)-CH2)TaH2 and [Cp*2TaH] reacts with elemental sulfur to give Cp*Ta-2(eta(2)-S-2)H (1) and Cp*(eta(6)-C(5)Me(4)CH(2))Ta-(eta(2)-S-2) (2). Irradiation of 2 by sunlight in the presence of sulfur results in sulfur insertion into the Ta-methylene bond to giveCp*(eta(6)-C(5)Me(4)CH(2)S)Ta(eta(2)-S-2) (4). The same reaction in the absence of sulfur produces Cp*(eta(6)-C(5)Me(4)CH(2)S)Ta(=S) (5), in which the Ta(eta(2)-S-2) group is transformed into a Ta=S moiety accompanied by a migratory sulfur insertion into a Ta-C bond. As a byproduct in these reactions, C*Ta-2(=S)SH (3), which is an isomerization product of the always present 1, is formed. These reactions provide a new insight into the uslfur chemistry of metallocenes having a fulvenoid substructure. All products are characterized by means of IR-, H-1-, C-13-NMR spectra.

  DOI：

  10.1021/om950745r