Reaktion #427397

Reaktionsgleichung

3-chloro-5-(trifluoromethyl)picolinaldehyde

hydroxylamine hydrochloride

pyridine

→

3-chloro-5-(trifluoromethyl)picolinaldehyde oxime

Lösungsmittel

ethyl acetate

water

ethanol

Reaktionsbedingungen

Aufarbeitung

1. 1
   WaschenThe organic layer was washed with brine, water
2. 2
   Trocknendried over anhydrous MgSO4
3. 3
   Einengenconcentrated en vacuo
4. 4
   Sonstigeto give a solid
5. 5
   Sonstigethat was carried onto the next step without further purification

Vorschrift

A solution of 3-chloro-5-(trifluoromethyl)picolinaldehyde (1.0 eq.), hydroxylamine hydrochloride (5.0 eq.), and pyridine (4.0 eq.) in ethanol was heated to 95° C. and stirred for 1 hour. The reaction was cooled to room temperature and diluted with ethyl acetate and water. The organic layer was washed with brine, water, dried over anhydrous MgSO4, and concentrated en vacuo to give a solid that was carried onto the next step without further purification.

Quelle