121772-30-3Relevant academic research and scientific papers
Synthesis of hexakis(alkylgermasesquioxane)s from alkyl(chloro)ethoxygermanes and their formation mechanism
Nanjo, Masato,Sasage, Takaomi,Mochida, Kunio
, p. 1124 - 1125 (2002)
Alkyl(chloro)ethoxygermanes were hydrolyzed with water to give 1,3,5-trialkyl-1,3,5-trichlorocyclotrigermoxanes. Hydrolysis of 1,3,5-trichlorocyclotrigermoxanes gave 5,7-dichloro-1,3,5,7,9,11-hexaalkyltricyclo[7.3.1.13,7 ]-hexagermoxanes. The t
Synthesis and characterization of alkylgermasesquioxanes
Nanjo, Masato,Sasage, Takaomi,Mochida, Kunio
, p. 135 - 142 (2007/10/03)
Alkyl (chloro)ethoxygermanes, RGe(OEt)nCl3-n (R = i-Pr, n = 0; R = t-Bu, n =0-3; R = cyclo-C6H11, n = 0) were hydrolyzed with aqueous NaOH in xylene at 130-140 °C to give cage hexakis(alkylgermasesquioxane)s, (RGe)6O9. These structures of cage (RGe)6O9 were fully confirmed by spectroscopic and X-ray diffraction methods. t-Butyldichloro(ethoxy)germane, t-BuGe(OEt)Cl2, was carefully treated with water at 5 °C for 3 h to afford cis, trans -1,3,5-tri-t -butyl-1,3,5-trichlorocyclotrigermoxane, (t-BuClGeO)3. Hydrolysis of (t-BuClGeO)3 at 5 °C for additional 33 h gave a tricyclic anti-form ladder prepared by hydrolysis of t-butyl(chloro)diethoxygermane, t-BuGe(OEt)2Cl, at 5 °C for 6 h, and its structure was determined by spectroscopic and X-ray diffraction analysis. The tricyclic ladder germoxane reacted with aqueous NaOH in xylene at 1300-140 °C for 3 h to afford hexakis(t-butylgermasesquioxane), (t-BuGe)6O9. The formation mechanism of the germasesquioxane, (t-BuGe)6O9 from t-butyl(chloro)ethoxygermanes, t-BuGe(OEt)nCl3-n (n = 0-3) is also discussed.
