01797nas a2200205   4500008004100000245012800041210006900169260000800238300001600246490000600262520106500268100001701333700001901350700002101369700002001390700001401410700002101424700002001445856012601465       2019                        eng d00aUtilization of waste biomass for the synthesis of functionalizable support for covalent anchoring of active organo catalyst0 aUtilization of waste biomass for the synthesis of functionalizab  cJAN  a3018–30260 v73 aA single step synthetic procedure for carbon microspheres from agricultural waste residue (sugarcane bagasse) by low-temperature hydrothermal carbonization using oxalic acid as a hydrating/dehydrating agent is developed. The FTIR and XPS spectroscopy analysis indicates the presence of −OH, −COOH, and C═O functional groups on the surfaces of carbon spheres. These functional groups of the carbon spheres were utilized as a novel route to anchor 3-aminopropyl-triethoxysilane and 3-(2-aminoethylamino)propyl)-trimethoxysilane via condensation of triethoxy/trimethoxy silanes for the synthesis of organo base supported on carbon catalysts. The catalytic activity of the obtained supported organo-base catalyst was demonstrated for C–C bond forming (Henry) reaction. Among all prepared catalysts, 3-(2-aminoethylaminopropyl)-trimethoxysilane grafted in toluene showed high conversion (up to 100%) of aldehydes with excellent selectivity toward β-nitrostyrene. The catalyst was reused five times without losing significant activity for the same reaction.1 aDoke, D., S.1 aAdvani, J., H.1 aNaikwadi, D., R.1 aGawande, M., B.1 aWalke, P.1 aUmbarkar, S., B.1 aBiradar, A., V.  uhttps://library.ncl.res.in/content/utilization-waste-biomass-synthesis-functionalizable-support-covalent-anchoring-active