Examples of Different Reactions of Benzylsulfanyl‐Substituted Alkynes with Selected Complexes of TiII and CoI
Examples of Different Reactions of Benzylsulfanyl‐Substituted Alkynes with Selected Complexes of TiII and CoI
复制标题
苄基硫基取代的炔烃与选定的 TiII 和 CoI 配合物的不同反应示例
DOI:
10.1002/ejic.201300312
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发表时间:
2013
影响因子:
2.3
通讯作者:
Uwe Rosenthal
中科院分区:
文献类型:
--
作者:
Kai Altenburger;Julia Semmler;Perdita Arndt;Anke Spannenberg;Matthias J. Meel;Alexander Villinger;Wolfram W. Seidel;Uwe Rosenthal
Reactions of the group 4 metallocene alkyne complexes [Cp2M(L)(btmsa)] (Cp = η5‐cyclopentadienyl = η5‐C5H5, btmsa = η2‐Me3SiC2SiMe3;1: M = Ti, L = none;2: M = Zr, L = pyridine) and of the [(triphos)CoI] moiety [triphos = 1,1,1‐tris(diphenylphosphanylmethyl)ethane] with the benzylsulfanyl‐substituted acetylenes PhCH2S–C2–SCH2Ph (3) and PhCH2S–C2–SFmoc (4) (Fmoc = fluorenylmethoxycarbonyl) have been investigated. Complex1reacted with3to give a mixture of a violet solid and [Cp2Ti(SCH2Ph)2] (5). Subsequently, the violet solid transformed in toluene at 70 °C into the dinuclear complex [(Cp2Ti)2(μ‐κ2‐κ2‐BnSC4SBn)] (6) displaying two [Cp2Ti] moieties bridged by a 1,4‐bis(benzylsulfanyl)‐1,3‐butadiyne in thetransconfiguration. Complex6was further degraded in toluene at 100 °C to the tetranuclear cluster [CpTiS]4(7). Similar reactivity was deduced indirectly for the reaction partners1/4and2/3. For CoI, the side‐on alkyne complexes [(triphos)Co(3)](PF6) (9‐PF6) and [(triphos)Co(4)](PF6) (10‐PF6) were obtained. Reductive removal of the benzyl groups in9‐PF6and subsequent coordination of the [Cp(PPh3)RuII]+moiety led to the dinuclear complex [(triphos)Co(μ‐η2‐κ2‐C2S2)RuCp(PPh3)] (13) displaying acetylene dithiolate (acdt2–) in a side‐on carbon–sulfur chelate coordination mode. In contrast, the reaction of10‐PF6with piperidine under very mild conditions resulted in the thio‐alkyne complex [(triphos)Co(PhCH2SC2S)] (11) bearing a terminal sulfur substituent at the coordinated alkyne. However, a subsequent rearrangement reaction led to the CoIIIdithiolene complex [(triphos)Co{S2C2(NC5H10)(CH2Ph)}](PF6) (14‐PF6). The intricate rearrangement very likely involves a dinuclear Co species with a η2‐κ2coordination of the C2S2moiety.
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影响因子:
15
作者:
Daming Zhang;David B. McConville;Joseph M. Hrabusa;C. Tessier;W. Youngs
通讯作者:
W. Youngs
影响因子:
--
作者:
D. Lentz;I. Brüdgam;H. Hartl
通讯作者:
H. Hartl
影响因子:
4.6
作者:
W. Seidel;Maria D Ibarra Arias;M. Schaffrath;Mareike C. Jahnke;A. Hepp;T. Pape
通讯作者:
T. Pape
DOI:
--
发表时间:
1996
期刊:
影响因子:
--
作者:
Stefan Beyreuther;J. Hunger;G. Huttner;S. Mann;L. Zsolnai
通讯作者:
L. Zsolnai
影响因子:
2.8
作者:
BOUAYAD, A;DARTIGUENAVE, M;BEAUCHAMP, AL
通讯作者:
BEAUCHAMP, AL