Tert-butyl 3-amino-3-(4-trifluoromethyl-3-pyridinecarbonyloxyimino)propionate → 3-(Tert-butoxycarbonylmethyl)-5-(4-trifluoromethyl-3-pyridyl)-1,2,4-oxadiazole

HRID 47214Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 47214
[NH2:1][C:2](=[N:11][O:12][C:13]([C:15]1[CH:16]=[N:17][CH:18]=[CH:19][C:20]=1[C:21]([F:24])([F:23])[F:22])=O)[CH2:3][C:4]([O:6][C:7]([CH3:10])([CH3:9])[CH3:8])=[O:5]>C1(C)C=CC=CC=1>[C:7]([O:6][C:4]([CH2:3][C:2]1[N:1]=[C:13]([C:15]2[CH:16]=[N:17][CH:18]=[CH:19][C:20]=2[C:21]([F:24])([F:23])[F:22])[O:12][N:11]=1)=[O:5])([CH3:10])([CH3:9])[CH3:8]

Komponenten

3

Edukt 1

HCID 53931299Tert-butyl 3-amino-3-(4-trifluoromethyl-3-pyridinecarbonyloxyimino)propionate

Produkt 1

HCID 227440793-(Tert-butoxycarbonylmethyl)-5-(4-trifluoromethyl-3-pyridyl)-1,2,4-oxadiazoleAusbeute 54,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1140TolueneLösungsmittel

Versuchsvorschrift

28 g of tert-butyl 3-amino-3-(4-trifluoromethyl-3-pyridinecarbonyloxy-imino)propionate are dissolved in 380 ml of toluene and heated under reflux for 17 hours. Concentration and chromatographic purification of the residue over silica gel gives 14.4 g of the product as a pale brown oil.

Aufarbeitung

  1. temperatureheated
  2. temperatureunder reflux for 17 hours
  3. concentrationConcentration and chromatographic purification of the residue over silica gel

Quellen und Nachweise

ORD-Eintrag
ord-53b60f67e14a45308a321a903bf2cf53
Quelldatensatz
uspto-grants-2004_03
Patentnummer
US06699853B2

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