Synthesis, characterization and catalytic performance in enantioselective reactions by mesoporous silica materials functionalized with chiral thiourea-amine ligand
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DOI: 10.1007/s11164-020-04301-w
Abstract: Chiral heterogeneous catalysts have been synthesized by grafting of silyl derivatives of (1 R , 2 R )- or (1 S , 2 S )-1,2-diphenylethane-1,2-diamine on SBA-15 mesoporous support. The mesoporous material SBA-15 and so-prepared… read more here.
Keywords: chiral heterogeneous; heterogeneous catalysts; characterization catalytic; catalytic performance ... See more keywords
Immobilization of (l)-valine and (l)-valinol on SBA-15 nanoporous silica and their application as chiral heterogeneous ligands in the Cu-catalyzed asymmetric allylic oxidation of alkenes
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DOI: 10.1039/d1nj02580e
Abstract: Chiral heterogeneous ligands AL*-i-Pr-SBA-15 and AA*-i-Pr-SBA-15 were synthesized and then used in Cu-catalyzed asymmetric allylic oxidation of alkenes. Allylic esters with moderate enantiomeric excess and good yields were obtained. read more here.
Keywords: chiral heterogeneous; catalyzed asymmetric; asymmetric allylic; heterogeneous ligands ... See more keywords