Copper‐Catalyzed Simultaneous Dehydrogenation and Enantioselective Allylic Oxidation of Alkanes Using Chiral Heterogeneous Ligands to Produce Allylic Esters and Theoretical Investigation of the Mechanism
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DOI: 10.1002/aoc.7857
Abstract: A new asymmetric method for preparing chiral allylic esters from various unactivated alkanes through simultaneous dehydrogenation and enantioselective allylic oxidation in the presence of chiral heterogeneous oxazoline–based ligands is reported for the first time. For… read more here.
Keywords: spectroscopy; simultaneous dehydrogenation; allylic esters; enantioselective allylic ... See more keywords
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