Rp. Evershed et al., FORMATION OF LONG-CHAIN KETONES IN ANCIENT-POTTERY VESSELS BY PYROLYSIS OF ACYL LIPIDS, Tetrahedron letters, 36(48), 1995, pp. 8875-8878
Structural and isotopic (delta(13)C) evidence indicates the formation
of series of long-chain ketones in archaeological pottery can occur by
condensation of long-chain carboxylic acids. The formation of the ket
ones is confirmed by pyrolysis of free fatty acids or triacylglycerols
in the presence of fired clay matrix.