Chitosan-supported cinchona urea: Sustainable organocatalyst for asymmetric Michael reaction
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DOI: 10.1016/j.catcom.2020.106132
Abstract: Abstract A novel chitosan-supported cinchona urea heterogeneous catalyst was developed for asymmetric reaction. The catalytic activity of the chitosan-supported organocatalyst was examined in the asymmetric Michael addition reaction to give chiral adducts in good yields… read more here.
Keywords: cinchona urea; supported cinchona; asymmetric michael; chitosan supported ... See more keywords
Chitosan supported Pd0 nanoparticles encaged in Al or Al-Fe pillared montmorillonite and their catalytic activities in Sonogashira coupling reactions
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DOI: 10.1016/j.clay.2020.105721
Abstract: Abstract In this study, the excellent chelating capability of chitosan (CS) and remarkable physical properties of Al or Al-Fe pillared montmorillonite (Mt) (i.e. high adsorption/diffusion capacity, thermal stability, and mechanical property, etc.) have been combined… read more here.
Keywords: pillared montmorillonite; sonogashira coupling; chitosan supported; coupling reactions ... See more keywords