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

The Gardamides

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Photo by permission of M. Roudintska - Art & Parfum

(2S)-(+)-Gardamide - Strong grapefruit aroma associated with a tropical fruit

Commercial (racemic) Gardamide is decribed by Quest International as "A zesty grapefruit citrus heart note, with aspects of crisp rhubarb".

= (2S)-(+)-N,2-dimethyl-N-phenylbutanamide

Ref: Daichi Oguro & Hiroyuki Sakai, OPTICALLY ACTIVE AMIDE AND PERFUME COMPOSITION COMPRISING THE SAME, Japanese Patent Publication No. 2005350395 December 22, 2005

Note - the odor descriptions were derived by computer translation from the Japanese and may vary slightly from the original language.

Gardamide is a trademark of Quest International

(2R)-(-)-Gardamide - Woody, weak grapefruit aroma having a camphor-element

= (2R)-(-)-N,2-dimethyl-N-phenylbutanamide

Ref: Ref: Daichi Oguro & Hiroyuki Sakai, OPTICALLY ACTIVE AMIDE AND PERFUME COMPOSITION COMPRISING THE SAME, Japanese Patent Publication No. 2005350395 December 22, 2005

Note - the odor descriptions were derived by computer translation from the Japanese and may vary slightly from the original language.

Gardamide is a trademark of Quest International

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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Copyright 2006 - Leffingwell & Associates