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

The 4-[2,2,3-trimethylcyclopent-3-en-1-yl]cyclohexylideneethanols

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Photo by permission of M. Roudintska - Art & Parfum

(-)-(2E/Z)-2-{(4S)-4-[(1R)-2,2,3-trimethylcyclopent-3-en-1-yl]cyclohexylidene}ethanol (1:1 mixture of E/Z isomers) - Without character

= (-)-(2E/Z)-2-((S)-4-((R)-2,2,3-trimethylcyclopent-3-enyl)cyclohexylidene)ethanol (1:1 mixture of E/Z isomers)

Note - only the (2E) isomers are shown above

Ref: Christian Chapuis, In the Quest for a Virtual Pseudo Receptor for Sandalwood-Like Odorants, Part I, Chemistry & Biodiversity, Volume 1, Issue 7, Date: July 2004, Pages: 980-1021

(+)-(2E/Z)-2-{(4R)-4-[(1S)-2,2,3-trimethylcyclopent-3-en-1-yl]cyclohexylidene}ethanol (1:1 mixture of E/Z isomers) - Green, cucumber, fatty, mastic

= (+)-(2E/Z)-2-((R)-4-((S)-2,2,3-trimethylcyclopent-3-enyl)cyclohexylidene)ethanol (1:1 mixture of E/Z isomers)

Note - only the (2E) isomers are shown above

Ref: Christian Chapuis, In the Quest for a Virtual Pseudo Receptor for Sandalwood-Like Odorants, Part I, Chemistry & Biodiversity, Volume 1, Issue 7, Date: July 2004, Pages: 980-1021

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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