Synthesis and qualitative olfactory evaluation of benzodioxepine analogues

Britta Drevermann, Anthony Lingham, Helmut Martin Huegel, Philip Marriott

Research output: Contribution to journalArticleResearchpeer-review

12 Citations (Scopus)


Marine fragrances, particularly Calone 1951 (R) (= 7-methyl-2H- 1,5 -benzodioxepin-3 (4H) -one; 1) has carved a minor but distinct niche in the broad field of fragrance chemistry. By focusing on the polar structure fragment of the benzodioxepinone parent compound, we set out to determine the molecular influence on the dominant marine note attributed to the Calone 1951 (R) structure. A selection of one-step modifications of the ketone 1 resulted in a range of odor-active conformers with diverse olfactory attributes. The synthesis of a range of benzodioxepine analogues, i.e., of 3-11, is presented alongside olfactory evaluation (Tables 2 and 3). Removal of the carbonyl group of 1 and increasing the size of the aliphatic ring portion (see 6 and 7) introduced sweetness and a predominant loss of the marine character.
Original languageEnglish
Pages (from-to)854 - 863
Number of pages10
JournalHelvetica Chimica Acta
Issue number5
Publication statusPublished - 2007
Externally publishedYes

Cite this