HCID 178526344, Verbindung → 4-Pyridinecarbaldehyde oxime
Reaktionsgleichung
O[C:2]1[CH:7]=[C:6]([CH:8]=[N:9][OH:10])[CH:5]=[CH:4][N:3]=1>C(O)(C)C>[N:3]1[CH:4]=[CH:5][C:6]([CH:8]=[N:9][OH:10])=[CH:7][CH:2]=1Komponenten
3
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
One hundred mL of isopropanol was added to the resulting broth containing 0.27 g of 2-hydroxy-4-pyridinaldoxime obtained from the reaction with 4-pyridinaldoxime as a substance. After shaking for 30 minutes, the solid contents were removed by filtration. After an addition of 100 mL of water to the filtrate, the whole was concentrated under a reduced pressure, whereby isopropanol was removed to precipitate the crystals. The precipitated crystals were separated by filtration to obtain 0.20 g of crude crystals. The resulting crystals were washed by water, and then were separated by filtration to obtain 0.15 g of white crystals of 2-hydroxy-4-pyridinaldoxime (rate of isolated yield=53%). The structure of the crystals was identified by IR analysis, proton NMR analysis and MS analysis.