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Alkoxyhydrosilanes as Precursors of Silylene Ligands:A Novel Approach to Transition Metal-Silylene Complexes

机译:烷氧基氢硅烷作为甲硅烷基亚甲烯配体的前体:一种过渡金属 - 甲硅烷基甲烯配合物的新方法

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Fe(CO)_4(=SiMe_2 centre dot HMPA),a donor-stabilized silyleneiron complex,was obtained by photoreactions of Fe(CO)_5 with HSiMe_2OR(R = Me,Ph)in the presence of HMPA(O=P(NMe_2)_3).SiMe_2(OR)_2 and H_2 were also produced in the reactions.Similar photoreactions in the absence of HMPA afforded Fe(CO)_4(H)(SiMe_2OR),which can be considered as plaus1ble intermediates for giving the silylene complex.Introduction of excess HSiMe_2OMe caused catalytic disproportionation to produce SiMe_2(OMe)_2 mainly together with other silanes(H_2SiMe_2,HSiMe_3,etc.),accompanied by formation of a novel bis(siiylene)iron complex Fe(CO)_3(H){SiMe_2...O(Me)...SiMe_2).
机译:Fe(CO)_4(= SIME_2中心点HMPA),一种供体稳定的SILYLENEIRON复合物,通过在HMPA(O = P(NME_2 )_3).Sime_2(或)_2和H_2也在反应中产生。在没有HMPA的情况下,在没有HMPA的含量的光电反应得到Fe(CO)_4(H)(SiMe_20or),其可以被认为是给予甲硅烷基甲硅烷化合物的增强中间体。过量的Hsime_2ome的介绍引起催化歧化以产生SIME_2(OME)_2,其主要与其他硅烷(H_2SIME_2,HSIME_3等)一起伴随着新的双(Sia二甲烯)铁复合物Fe(CO)_3(H){ sime_2 ... o(me)... sime_2)。

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