103349-40-2Relevant academic research and scientific papers
Generation and Evidence of the Germaethene Me2Ge=C(SiMe3)2
Wiberg, Nils,Kim, Chung-Kyun
, p. 2966 - 2979 (2007/10/02)
Bromogermyldisilylmethanes (Me3Si)2(Me2XGe)CBr (3 - 13) are formed as a result of the reaction of (Me3Si)2(Me2PhGe)CBr (14) with bromine (X = Br) and also through the reaction of (Me3Si)2(Me2BrGe)CBr (3) with AgX (X = F, Ph2POn) or MX (M = H, Li, Na; X = OR, SR, R).Lithium organyls RLi convert 3 - 11 (X = Hal, OR, SR, Ph2POn) at low temperatures by Br/Li exchange into protolysable, thermolabile compounds (Me3Si)2(Me2XGe)CLi, and by X/R exchange into (Me3Si)2(Me2RGe)CBr.Thermal decomposition of (Me3Si)2(Me2XGe)CLi in diethyl ether at -110 to 100 deg C leads under LiX elimination to 1,3-digermacyclobutane 2 (24).The reactive intermediate is the germaethene Me2Ge=C(SiMe3)2 (2), the intermediate existence of which has been established through chemical means by trapping 2 with 2,3-dimethyl-1,3-butadiene (formation of a cycloadduct as well as an ene-reaction product).
