A green, efficient, and selectivesynthesis of unsymmetricalorganiccarbonates is realised in the liquid phase by direct condensation of an alcohol and diethyl carbonate, in an eco-compatible route, in the presence of a recyclable heterogeneous solid-base CsF/α-Al2O3 catalyst. The catalyst displayed unprecedented activity after activation at 393 K for 4 h and produced quantitative yields with a greater
Immobilization of 1,5,7‐Triazabicyclo[4.4.0]dec‐5‐ene on Magnetic γ‐Fe
<sub>2</sub>
O
<sub>3</sub>
Nanoparticles: A Highly Recyclable and Efficient Nanocatalyst for the Synthesis of Organic Carbonates
作者:Liqiang Wu、Shuanbao Tian
DOI:10.1002/ejic.201301586
日期:2014.4
1,5,7-Triazabicyclo[4.4.0]dec-5-ene was immobilized on magnetic γ-Fe2O3 nanoparticles as a magneticnanocatalyst. The nanoparticle reagent was obtained with good loading levels and has been successfully used for the efficient and selective synthesis of organic carbonates by the direct condensation of alcohols and diethyl carbonate. The catalyst is quantitatively recovered by an external magnet and