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acetic ester
Last Update: 2014-11-15 Usage Frequency: 5 Quality: Reference: IATE
petrolether/essigester (7:3).
petroleum ether/ethyl acetate (7:3).
Last Update: 2014-12-03 Usage Frequency: 4 Quality: Reference: IATE
man extrahiert mit essigester (3x).
it is extracted with ethyl acetate (3×).
Last Update: 2014-12-03 Usage Frequency: 5 Quality: Reference: IATE
der rückstand wurde in essigester aufgenommen.
the residue was taken up in ethyl acetate.
Last Update: 2014-12-03 Usage Frequency: 2 Quality: Reference: IATE
reinigung: ausrühren aus diisopropylether/essigester.
purification: precipitation from diisopropyl ether/ethyl acetate.
r : 0,42 (petrolether/essigester 1:1).
r.sub.f : 0.42 (petroleum ether/ethyl acetate 1:1).
lösungsmittelgemisch: 700 teile essigester, 300 teile isopropanol.
solvent mixture: 700 parts ethyl acetate, 300 parts isopropanol.
dc (toluol/essigester 1 + 1): r = 0.34.
tlc (toluene/ethyl acetate 1+1): r.sub.f =0.34.
Last Update: 2014-12-03 Usage Frequency: 3 Quality: Reference: IATE
die reinigung erfolgte säulenchromatographisch (cyclohexan/essigester 3:1).
the purification was carried out by column chromatography (cyclohexane/ethyl acetate 3:1).
88°c; r (sio , toluol/essigester 4:1)=0.74.
88° c.; r (sio , toluene/ethyl acetate 4:1)=0.74.
r -wert: 0,48 (kieselgel 60, essigester/ethanol 9/1).
r.sub.f value: 0.15 (silica gel 60, ethyl acetate/ethanol 9/1).
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