Chirality & Odour Perception
John C. Leffingwell, Ph.D.

The 7,11-epoxymegastigma-5(6)-en-9-ones

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Photo by permission of M. Roudintska - Art & Parfum

(+)-(7S)-7,11-epoxymegastigma-5(6)-en-9-one - Weak, somewhat floral-fruity, raspberry, ionone-like

Ref: Elisabetta Brenna, Claudio Fuganti and Stefano Serra, Synthesis and olfactory evaluation of the enantiomerically enriched forms of 7,11-epoxymegastigma-5(6)-en-9-one and 7,11-epoxymegastigma-5(6)-en-9-ols isomers, identifed in Passiflora edulis, Tetrahedron: Asymmetry, 16 (2005) 1699–1704.

(-)-(7R)-7,11-epoxymegastigma-5(6)-en-9-one - Sweet, food-like, slightly vanillic note

Ref: Elisabetta Brenna, Claudio Fuganti and Stefano Serra, Synthesis and olfactory evaluation of the enantiomerically enriched forms of 7,11-epoxymegastigma-5(6)-en-9-one and 7,11-epoxymegastigma-5(6)-en-9-ols isomers, identifed in Passiflora edulis, Tetrahedron: Asymmetry, 16 (2005) 1699–1704.

Cyclic Terpenoid Odorants

Bicyclic Terpenoid Odorants

Acyclic Terpenoid Odorants

Ionones, Irones, Damascones & Structurally Related Odorants

Acyclics (Alcohols, Esters, Acids, Aldehydes)

Lactones

Sesquiterpenoid Related Odorants

Steroid Urine Type Odorants

Sandalwood Type Odorants

Musk Odorants

Miscellaneous

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