Synthesis of a Base-Stabilized Silanone-Coordinated Complex by Oxygenation of a (Silyl)(silylene)tungsten Complex

Synthesis of a Base-Stabilized Silanone-Coordinated Complex by Oxygenation of a (Silyl)(silylene)tungsten Complex
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通过(甲硅烷基)(亚硅基)钨络合物的氧化合成碱稳定的硅烷酮配位络合物

DOI:
10.1021/ja207395w
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发表时间:
2011
期刊:
J. Am. Chem. Soc
影响因子:
--
通讯作者:
and Keiji Ueno
and Keiji Ueno
中科院分区:
--
文献类型:
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作者:
Youhei Haga;Tomoko Nakamura;and Keiji Ueno

文献摘要

相似文献

在4-二甲氨基吡啶(DMAP)存在下,由(硅基)(亚硅基)钨配合物Cp*(OC)2 W(SiMe 3)(SiMe 2)(1)与1当量吡啶-N-氧化物(PNO)反应,合成了碱稳定的硅酮配合物Cp *(OC)2 W(SiMe 3){O <$SiMes2(DMAP)}(2)。在80 °C下用3当量的PNO进一步氧化2导致形成W-O-Si-O-Si骨架,得到二烷氧基络合物Cp*(O)2 W {OSiMes 2(OSiMe 3)}(3)。配合物1与4当量PNO在80 °C直接反应得到配合物3。
Base-stabilized silanone complex Cp*(OC)2W(SiMe3){OSiMes2(DMAP)} (2) was synthesized by the reaction of (silyl)(silylene)tungsten complex Cp*(OC)2W(SiMe3)(SiMes2) (1) with 1 equiv of pyridine-N-oxide (PNO) in the presence of 4-(dimethylamino)pyridine (DMAP). Further oxygenation of2with 3 equiv of PNO at 80 °C resulted in the formation of a W–O–Si–O–Si framework to give disiloxanoxy complex Cp*(O)2W{OSiMes2(OSiMe3)} (3). Complex3was also obtained by the direct reaction of complex1with 4 equiv of PNO at 80 °C.