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A new chromone, 2-(2-4'-methoxyphenylethyl) chromone (I) was isolated together with 2-(2-phenylethyl) chromone (II : flidersiachromone) from agarwood (Japanese name ; JINKOH). On pyrolysis at 150°C, I and II were found to produce 4-methoxybenzaldehyde and benzaldehyde, respectively. It is considered that these chromones, which are odorless at room temperature, contribute to the pleasant, lasting odor obtained when agarwood is burnt as an incense.
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Hashimoto et al. (1985) studied this question.
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