Chemical Properties of Tetragermaplatina- cyclopentane. Insertion of an Alkyne into a Pt-Ge Bond and Silylation Caused by H2 SiPh 2

Chemical Properties of Tetragermaplatina- cyclopentane. Insertion of an Alkyne into a Pt-Ge Bond and Silylation Caused by H2 SiPh 2
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Tetragermaplatina-环戊烷的化学性质。

DOI:
10.1021/om200275w
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发表时间:
2011
期刊:
影响因子:
2.8
通讯作者:
小坂田耕太郎
小坂田耕太郎
中科院分区:
化学2区
文献类型:
--
作者:
田邊真;出口尚史;小坂田耕太郎

文献摘要

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具有二丁基锗烷基配体的铂络合物[Pt(GeHBu 2)2(dmpe)](dmpe = 1,2-双(二甲基膦基)乙烷)与过量的H2 GeBu 2在90 °C下反应,得到五元四锗合铂络合物[Pt(GeBu 2GeBu 2GeBu 2GeBu 2)(dmpe)](6)。H_2GeBu_2与[Pt(dmpe)_2]以5:1的比例直接反应也得到6,产率为67%。乙炔二甲酸二甲酯与6反应,在Pt-Ge键中插入一个C → C键,生成一个七元锗铂环庚烯。配合物6与H_2GePh_2和H_2SiPh_2以1:2的比例反应生成四锗烷二氢化物H(GeBu_2)_4H和双甲硅烷基或双甲锗烷基铂配合物[Pt(EHPh_2)_2(dmpe)](E = Si,Ge)的混合物。
A platinum complex having dibutylgermyl ligands, [Pt(GeHBu2)2(dmpe)] (dmpe = 1,2-bis(dimethylphosphino)ethane), reacted with excess H2GeBu2at 90 °C to yield a five-membered tetragermaplatinacycle, [Pt(GeBu2GeBu2GeBu2GeBu2)(dmpe)] (6). The direct reaction of H2GeBu2with [Pt(dmpe)2] in 5:1 ratio also gave6in 67% yield. The reaction of dimethyl acetylenedicarboxylate with6caused insertion of a CC bond into a Pt–Ge bond to form a seven-membered germaplatinacycloheptene, which was characterized by X-ray crystallography. Complex6reacted with H2GePh2and H2SiPh2in 1:2 ratio to produce a mixture of tetragermane dihydride H(GeBu2)4H and bis(silyl)- or bis(germyl)platinum complexes [Pt(EHPh2)2(dmpe)] (E = Si, Ge).