Trimethylsilylmethyl and other alkyls of chromium, molybdenum, ruthenium, and rhodium from interaction of magnesium dialkyls with metal–metal bonded binuclear acetates of chromium(<scp>II</scp>), molybdenum(<scp>II</scp>), ruthenium(<scp>II</scp>,<scp>III</scp>), and rhodium(<scp>II</scp>)
作者:Richard A. Andersen、Richard A. Jones、Geoffrey Wilkinson
DOI:10.1039/dt9780000446
日期:——
The interaction between dialkylmagnesium MgR2(R = Me, CH2SiMe3, or CH2CMe3) and binuclear transition-metal acetates M2II(O2CMe)4(M = Cr, Mo, and Rh) and Ru2II,III(O2CMe)4CI, containing metal–metal bonds in the presence of trimethylphosphine yields either monomeric or dimeric alkyls. In the latter the metal–metal bond is retained as in Mo2Me4(PMe3)4 or Mo2(ButCH2)2(O2CMe)2(PMe3)2. Loss of a hydrogen
二烷基镁MgR 2(R = Me,CH 2 SiMe 3或CH 2 CMe 3)与双核过渡金属乙酸盐M 2 II(O 2 CMe)4(M = Cr,Mo和Rh)和Ru 2之间的相互作用II,III(O 2 CMe)4 CI,在三甲基膦的存在下含有金属-金属键,可生成单体或二聚烷基。在后一种的金属-金属键是在沫保持为2我4(PME 3)4或Mo 2(BU吨CH 2)2(O 2 CMe)2(PMe 3)2。CH 2 SiMe 3的甲基中氢的损失导致金属环的形成[省略图] H 2和[省略图] H 2。已经通过1 H,13 C和31 P nmr和红外光谱研究了各种化合物,并报道了通过X射线晶体学测定结构的结果。