The Demethylmarmelo lactones

The delta-Octathionolactones

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

The 5-[(1Z)-3-methylbuta-1,3-dienyl]dihydrofuran-2(3H)-ones

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Photo by permission of M. Roudintska - Art & Parfum

(5R)-Demethylmarmelo lactone - butter cake smell

= (5R)-5-[(1Z)-3-methylbuta-1,3-dienyl]dihydrofuran-2(3H)-one or (R)-dihydro-5-((Z)-3-methylbuta-1,3-dienyl)furan-2(3H)-one

Ref: Meguro Hiromu, Orui Hiroshi & Nishida Yoshihiro, Optically active 4-(7-methyl-5,7-butadienyl)-butanolide and its preparation, Japanese Patent No. 59-219273, 10.12.1984

(5S)-Demethylmarmelo lactone - milky almond smell

= (5S)-5-[(1Z)-3-methylbuta-1,3-dienyl]dihydrofuran-2(3H)-one or (S)-dihydro-5-((Z)-3-methylbuta-1,3-dienyl)furan-2(3H)-one

Ref: Meguro Hiromu, Orui Hiroshi & Nishida Yoshihiro, Optically active 4-(7-methyl-5,7-butadienyl)-butanolide and its preparation, Japanese Patent No. 59-219273, 10.12.1984

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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