Abstract
This work was undertaken to separate and identify the carbonyl compounds of the essential oil from Virginia tobacco leaves. In this paper, the carbonyl com-pounds were separated by the chromatographic adsorption on silicic acid and celite from petroleum heuzine-ether and-benzen and identified by melting point and infrared spectra. Acetaldehyde, isobutyraldehyde, benzaldehyde, furfural and 5-methylfurfural were identified from the mixture of 2, 4-dinitrophenylhydrazones of carbonyl com-pounds. Furfural formed two isomers of 2, 4-dinitrophenylhydrazones melting at 206°C and 227°C, respectively.
