801some other Cg components, e.g., (Zl-6-nonenal or (2)-6nonenyl acetate, which were described by Buttery et al. (1982) to possess strong melon-like aroma far below the level of detection used in this study, seems probable.Registry No. , 95-16-9. LITERATURE CITEDAbd El-Baki, M. M.; A s h , A.; El-Samahy, S. K.; Abd El-Fadeel, M. G. Dtsch. Leben.sm.-Rundsch. Velluz, A.; Passerat, J.-P.; Ohloff, G. J. Sci. Food Renold, W.; Niif-Muller, R.; Keller, U.; Willhalm, B.; Ohloff, G. Schultz, T. H.; Flath, R. A.; Mon, T. R.; Eggling, S. B.; Teranishi, Tressl, R.; Engel, K.-H.; Kossa, M.; Koppler, H. J. Agric. Food Winter, M.; Kloti, R. Helv. Chim.p-Mentha-195-dien-8-01 (3a) and p-mentha-l(7),2-dien-8-01 (3b) were isolated from deteriorated citral as major components and were identified by IR, EI-MS, FI-MS, ' H NMR, and 13C NMR. When 3a or 3b was treated with aqueous citric acid, an equlibrium mixture of 3a-3b isomers (55:45) resulted and both isomers were subsequently converted to p-cymen-8-01(6) by disproportionation and redox reactions.

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