Sammanfattning
Styrenic TADDOL and L-prolinol-derived monomers were immobilized on polyethylene fibers by electron beam induced preirradiation grafting using styrene as comonomer. The polymer-supported chiral ligands were utilized as catalysts in the asymmetric addition of diethylzinc to benzaldehyde. Fiber-bound titanium TADDOLate gave a quantitative conversion of benzaldehyde to 1-phenylpropan-1-ol in a 97:3 S/R enantiomeric ratio. The catalyst was successfully regenerated and employed in subsequent reactions with retention of high enantioselectivities.
Originalspråk | Odefinierat/okänt |
---|---|
Sidor (från-till) | 2551–2554 |
Antal sidor | 4 |
Tidskrift | Organic Letters |
Volym | 3 |
Nummer | 16 |
DOI | |
Status | Publicerad - 2001 |
MoE-publikationstyp | A1 Tidskriftsartikel-refererad |