SYRINGALDEHYDE PRODUCTION AND ITS CHROMATOGRAPHIC DETERMINATION FROM AN NATURAL EXTRACT

We obtain SYRINGALDEHYDE (>99%) by using a deviated Duff's formylation in the presence of hexamethylenetetramine in acetic and sulphuric aci d medium (50%)g/g), heated at 90-100-degrees-C for about 3h. and start ing from 2,6-DMF (pyrogallol-1,3-dimethyl ether) isolated from wood ta r. The yield was about 70%. In this formylation process no other isome rs were identified. Analysis conditions have been mentioned by thin la yer and gaschromatography (also coupling with mass spectrometry) which permits the determination of some aldehydes with aromatic structure ( VANILLIN, SYNAPALDEHYDE, SYRINGALDEHYDE) from natural oak(Quercus) woo d extract.