Format:
Online-Ressource
ISSN:
1615-4169
Content:
Abstract: The direct immobilization of two different C‐5‐propargyl ether‐modified, chiral N‐salicylidene vanadyl (V) tert‐leucinates onto 4‐azidomethyl‐substituted polystyrene by click chemistry was examined. Among the eight different solvents investigated, the resulting polystyrene‐supported catalysts promote the asymmetric, aerobic oxidation of α‐hydroxy (thio) esters and amides with enantioselectivities of up to 99% ee (selectivity factor up to 41) in chloroform. These polystyrene‐supported catalysts can be readily recovered by filtration and reused for at least four consecutive runs without discernible loss of reactivity and enantioselectivity.
In:
volume:353
In:
number:8
In:
year:2011
In:
pages:1234-1240
In:
extent:7
In:
Advanced synthesis & catalysis, Weinheim : Wiley-VCH, [2001]-, 353, Heft 8 (2011), 1234-1240 (gesamt 7), 1615-4169
Language:
English
DOI:
10.1002/adsc.201100062
URN:
urn:nbn:de:101:1-2023033111515725271150
URL:
https://doi.org/10.1002/adsc.201100062
URL:
https://nbn-resolving.org/urn:nbn:de:101:1-2023033111515725271150
URL:
https://d-nb.info/1285036034/34
URL:
https://doi.org/10.1002/adsc.201100062