Trifunctional organometallic frameworks and cages based on all-cis-1,3,5-triethynyl-1,3,5-trisilacyclohexanes

All-cis-1,3,5-triethynyl-1,3,5-triorganyl-1,3,5-trisilacyclohexanes offer flexible scaffolds with three concordantly oriented ethynyl groups that can be lithiated and transformed into a range of other cage-like compounds, like the trimercury cage compounds [CH2Si(R)C2HgC2(R)SiCH2]3 shown in the picture.

Hydrogenation of Furfural to Furfuryl Alcohol in the Presence of Ru-Containing Catalysts Based on New Zeolite-like Materials

Liquid-phase catalytic hydrogenation of furfural to industrially important furfuryl alcohol was studied at 30 and 50 °C and 2 to 24 atm hydrogen pressure in the presence of Ru-containing catalysts based on new zeolite-like materials such as nickel-phosphate molecular sieves (VSB-5 and Fe-VSB-5) and zirconium-containing organometallic frameworks (UiO-66(Zr)-R, R = H and NH2), as well as materials based on carbon support Sibunit (for comparison). The yield of furfural was shown to depend on the support nature and to increase in the series: Ru/UiO-66(Zr)-NH2 < Ru/UiO-66(Zr) < Ru/Fe-VSB-5 < Ru/VSB-5. The influence of the hydrogen pressure and temperature on selectivity to furfural alcohol was studied.