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

The 3-(3-(4-methylpentyl)phenyl)butanals

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Photo by permission of M. Roudintska - Art & Parfum

(S)-(-)-3-(3-(4-methylpentyl)phenyl)butanal - Odor description: watery-marine, floral-aldehydic, fatty-buttery, slightly metallic, green citrus. The (S) enantiomer is more powerful (having an about 5-times lower odor threshold) and is the more marine smelling enantiomer compared to its (R) enantiomer.

= (3S)-(-)-3-[3-(4-methylpentyl)phenyl]butanal

Ref: Goeke, Andreas, Philip Kraft and Yue Zou, Organic Compounds, WIPO Patent Application WO/2014/207205, Published: 12/31/2014

(R)-(+)-3-(3-(4-methylpentyl)phenyl)butanal - Odor description: floral-aldehydic, fatty-buttery, sweet-fruity in melon direction, less marine and less powerful than the ( S)-isomer

= (3R)-(+)-3-[3-(4-methylpentyl)phenyl]butanal

Ref: Goeke, Andreas, Philip Kraft and Yue Zou, Organic Compounds, WIPO Patent Application WO/2014/207205, Published: 12/31/2014

 

 

 

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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