Monoglucose Derivatives of Gentisic Acid

Pyrolysis of Chlorogenic Acid and Rutin

“…Of these 24 compounds, 4 compounds such as catechol, 4-methylcatechol, 5-methyl-2-furaldehyde and 5-hydroxymethyl-2-furaldehyde have previously been reported as pyrolysis products of rutin. Resorcinol and 2-furaldehyde which have been previously reported in the pyrolysate of rutin 13 ) were not found in this study.…”

“…Of these 22 compounds, only.4com-pounds such as catechol, 4-methylcatechol, 4-ethylcatechol and benzoic acid have previously been found in chlorogenic acid pyrolysate. 13 ) Table II shows that as the pyrolysis products of rutin, 24 compounds were identified and the largest p.eak in Fig. 3 is catechol as in the case of chlorogenic acid in Fig.…”

Phenolic compound formation from the low temperature pyrolysis of tobacco

“…Most research studies carried out to-date on the formation of phenolic compounds from the pyrolysis of tobacco materials have focused on catechol and phenol, and the majority of studies have involved the pyrolysis of tobacco [21][22][23], tobacco extracts [3,22,[24][25][26], and selected tobacco components at temperatures greater than 700 8C [21,24,[27][28][29][30]. Despite numerous papers addressing the formation of selected phenolic compounds, there is little information available in the current literature on their temperature of formation.…”

Composition Studies on some Varieties of Tobacco and their Smoke: I. Major Components in Smoke Condensate

“…The total amounts (!J.g/puff) of the 13 determined components in flue-cured tobacco smoke were about twice as much as those in the smoke from other varieties of tobacco. In flue-cured tobacco smoke, compounds which were present in higher concentrations than those in the smoke from other varieties of tobacco were as follows: dtlorogenic acid pyrolysates (catechol, 4-methylcatedtol, 4-ethylcatedtol, 4-vinylcatechol and quinic acid y-lactone) (19,20), carbohydrate pyrolysates (hydroquinone, levoglucosan and glucometasacdtarinic acid y-lactone) (21-23) and others (lactic and glycolic acid). In Burley tobacco smoke, glycerol, whidt is thought to be directly transferred from tobacco, 4-vinylphenol, lactic acid and chlorogenic acid pyrolysates (catedtol, 4-vinylcatedtol and 4-ethylcatechol) were present in lower concentrations.…”