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À propos de : Chiral Sulfoxides as Neutral Coordinate-Organocatalysts in AsymmetricAllylation of N-Acylhydrazones Using Allyltrichlorosilanes        

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  • Chiral Sulfoxides as Neutral Coordinate-Organocatalysts in AsymmetricAllylation of N-Acylhydrazones Using Allyltrichlorosilanes
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  • Sulfoxides were first introduced to the allylation of N-acylhydrazones with allyltrichlorosilanes as effective neutral coordinate-organocatalysts (NCOs). Both high diastereo- and enantioselectivity were attained when optically active chiral sulfoxides were used. Asymmetric crotylations using (Z)- and (E)-crotyltrichlorosilanes showed a high level of stereospecificity (Z → anti and E → syn) with high enantioselectivity.
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