nido-1,2-((pentamethylcyclopentadienyl)Ru)2(μ-H)(μ-CHCH2Ph)B3H6 | 622410-95-1

• 英文名称: nido-1,2-((pentamethylcyclopentadienyl)Ru)2(μ-H)(μ-CHCH2Ph)B3H6
• 英文别名: nido-1,2-(Cp*Ru)2(1,5-μ-C(CH2Ph)H)B3H7
• CAS: 622410-95-1
• 化学式: C₂₈H₄₅B₃Ru₂
• 分子量: 616.238
• InChiKey: LRWNJOFUCPKMMV-UHFFFAOYSA-N

反应信息

• 作为产物：
  描述：

  nido-[1,2-C5(CH3)5RuH]2B3H7 、 苯乙炔 以 甲苯 为溶剂， 以28%的产率得到nido-1,2-((pentamethylcyclopentadienyl)Ru)2(μ-H)(μ-BH2)-3-(CH2)2Ph-4-Ph-4,5-C2B2H4
  参考文献：
  名称：

  的反应巢-1,2-（CP *期RuH）2乙3 ħ 7与RCCR'（R，R'= H，Ph值;我中，Me），得到新颖metallacarboranes

  摘要：

  在环境温度下将内部炔烃2-丁炔加到nido -1,2-（Cp * RuH）2 B 3 H 7（1）上可产生nido -1,2-（Cp * Ru）2（μ-H ）（μ-BH 2）-4,5--ME 2 -4,5--C 2乙2 ħ 4（2），nido- 1,2-（CP *期RuH）2 -4,5--ME 2 -4 ，5-C 2 B 2 H 4（3）和nido- 1,2-（Cp * RuH）2 -4-Et-4,5-C 2 B2 H 5（4），平行路径。在加热时，2，其中包含一个新的外型-polyhedral硼烷配位体，被转换成闭合碳-1,2-（CP *期RuH）2 -4,5--ME 2 -4,5--C 2乙3 ħ 3（5）和nido -1,6-（Cp * Ru）2 -4,5-Me 2 -4,5-C 2 B 2 H 6（6）后者是3的骨架异构体。用2-丁炔加热2会生成Nido-1,2-（Cp * RuH）2

  DOI：

  10.1016/s0022-328x(03)00172-4

文献信息

• Cooperative Metal−Boron Interactions in the Reaction of <i>n</i><i>ido</i>-1,2-(Cp*RuH)₂B₃H₇, Cp* = η⁵-C₅Me₅, with HC⋮CPh
  作者：Hong Yan、Bruce C. Noll、Thomas P. Fehlner

  DOI：10.1021/ja042439n

  日期：2005.4.1

  Products of the reaction of nido-1,2-(Cp*RuH)(2)B3H7, 1, and phenylacetylene demonstrate the ways in which cluster metal and main group fragments can combine with an alkyne. Observed at 22 degrees C are (a) reduction to mu-alkylidene Ru-B bridges (isomers nido-1,2-(Cp*Ru)(2)(1,5-mu-CPh}Me)B3H7, 2, and nido-1,2-(Cp*Ru)(2)(1,5-mu-CCH2Ph}H)B3H7, 3), (b) reduction to exo-cluster alkyl substituents on boron (nido-1,2-(Cp*RuH)(2)-3-CH2CH2Ph-B3H6, 4), (c) cluster insertion with extrusion of a BH2 fragment into an exo-cluster bridge (nido-1,2-(Cp*Ru)(2)(mu-H)(mu-BH2)-4-or-5-Ph-4,5-C2B2H5, 5), (d) combined insertion with BH2 extrusion and reduction (nido-1,2-(Cp*Ru)(2)(mu-H)(mu-BH2)-3-CH2CH2Ph-5-Ph-4,5-C2B2H4, 6), (e) insertion and loss of borane with and without reduction (nido-1,2-(Cp*Ru)(2)-5-Ph-4,5-C2B2H7, and isomers nido-1,2-(Cp*Ru)(2)-3-CH2CH2Ph-4-(and-5-)Ph-C2B2H6, 8 and 9), and (f) insertion and borane loss plus reduction (nido-1,2-(Cp*Ru)(2)-3-(trans-CH=CHPh)-5-Ph-4,5-C2B2H6, 10). Along with 7, 8, and 10, the reaction at 90 C generates products of insertion and nido- to closo-cluster closure (closo-4-Ph-1,2-(Cp*RuH)(2)-4,6-C2B2H3, 11, closo-1,2-(Cp*RuH)(2)-3-CH2CH2Ph-5-Ph-7-CH2CH2Ph-4,5-C2B3H2, 12, closo-1,2-(Cp*RuH)(2)-5-Ph-4,5-C2B3H4, 13, and isomers c/oso-1,2-(Cp*RuH)(2)-3-and-7-CH2CH2Ph-5-Ph-4,5-C2B3H3, 14 and 15). The clusters with an exo-cluster bridging BH2 groups are shown to be intermediates by demonstrating that the major products 5 and 6 rearrange to 13 and convert to 14, respectively. 14 then isomerizes to 15, thus connecting low- and high-temperature products. Finally, all available information shows that the high reactivity of 1 with alkynes can be associated with the "extra" two Ru-H hydrides on the framework of 1 which are required to meet the nido-cluster electron count.