Alkane Elimination Reactions between Yttrium Alkyls and Tungsten Hydrides
Alkane Elimination Reactions between Yttrium Alkyls and Tungsten Hydrides
复制标题
烷基钇与氢化钨之间的烷烃消除反应
DOI:
10.1002/ejic.201301476
复制
发表时间:
2014
影响因子:
2.3
通讯作者:
R. Kempe
中科院分区:
文献类型:
--
作者:
A. P. Sobacynski;J. Obenauf;R. Kempe
Alkane elimination of the yttrium monoalkyl [Cp2Y(CH2SiMe3)(thf)] (Cp = cyclopentadienyl, thf = tetrahydrofuran, Me = methyl) with the tungsten hydrido carbonyl complex [HW(CO)3Cp] in THF gave rise to the trinuclear complex [{CpW(CO)2(μ‐CO)}2YCp(thf)3] (1). In the course of the reaction, one Cp ligand per yttrium was redistributed, thus leading to the formation of [Cp3Y] as a side product. To avoid the observed ligand redistribution, other solvents were investigated. The reaction of [Cp2Y(CH2SiMe3)(thf)] with [HW(CO)3Cp] in acetonitrile afforded the dinuclear complex [{CpW(CO)2(μ‐CO)}YCp2(NCMe)2] (2). The reaction of the yttrium dialkyl complex [Y(CH2SiMe3)2(OC6H3tBu2‐2,6)(thf)2] with [HW(CO)3Cp] in toluene gave the polymeric compound [{CpW(CO)2(μ‐CO)}2Y(OC6H3tBu2‐2,6)]n(3), whereas reaction in THF gave the molecular compound [{CpW(CO)2(μ‐CO)}2Y(OC6H3tBu2‐2,6)(thf)3] (4). The reaction of the yttrium trialkyl complex [Y(CH2SiMe3)3(thf)2] with [HW(CO)3Cp] in THF led to the formation of [{CpW(CO)2(μ‐CO)}3Y(thf)5] (5). Reaction of [(Ap*)Y(CH2SiMe3)2(thf)] {Ap*H = (2,6‐diisopropylphenyl)‐[6‐(2,4,6‐triisopropylphenyl)pyridin‐2‐yl]amine} with [HW(CO)3Cp] in THF was unexpectedly accompanied by the loss of the Ap* ligand and resulted in the formation of5too. Isocarbonyl linkage is the dominating interaction between the Y and the W complex moieties. All compounds were characterized by NMR and IR spectroscopy as well as elemental analysis. Complexes1,2,4, and5were additionally characterized by X‐ray crystal structure analysis (X‐ray diffraction).
登录
查看更多内容
影响因子:
4.3
作者:
Doering, Christian;Dietel, Anna-Maria;Kempe, Rhett
通讯作者:
Kempe, Rhett
DOI:
10.1002/cber.19911240611
发表时间:
1991
期刊:
Chemische Berichte
影响因子:
--
作者:
A. Recknagel;A. Steiner;Sally Brooker;D. Stalke;F. Edelmann
通讯作者:
F. Edelmann
影响因子:
2.8
作者:
W. Evans;Randy N. R. Broomhall-Dillard;J. Ziller
通讯作者:
W. Evans;Randy N. R. Broomhall-Dillard;J. Ziller
DOI:
10.1039/c39880001473
发表时间:
1988
期刊:
Journal of The Chemical Society, Chemical Communications
影响因子:
--
作者:
Paulette N. Hazin;J. Huffman;J. Bruno
通讯作者:
J. Bruno
影响因子:
--
作者:
Mikhail V. Butovskii;Oleg L. Tok;Viktor Bezugly;F. Wagner;R. Kempe
通讯作者:
R. Kempe