Volatile Components of Pineapple

SUMMARY— By gas chromatographic retentions, infrared spectroscopy and where applicable, mass and nmr spectroscopy, several additional compounds have been identified as components of pineaapple essence. These are acetoxyacetone, dimethyl malonate, trans‐tetrahydro‐α,α,trimethyl‐5‐vinyl fur‐furyl alcohol, methyl cis‐(4?)‐octenoate, γ‐butyrolactone, methyl β‐hydroxybutyrate, methyl and ethyl β‐hydroxyhexano‐ate, methyl and ethyl β‐acetoxyhexanoate, γ‐octalactone, and δ‐octalactone. Possible biogenetic pathways to some of these compounds are discussed.