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

The Ethyl 2-(1,1-dimethylpropoxy)propanoates

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Photo by permission of M. Roudintska - Art & Parfum

(+)-Ethyl (2R)-2-(1,1-dimethylpropoxy)propanoate - a connotation of the chamomile type. This note is particularly distinct in the odor of the ethyl (R)-2-(1,1-dimethylpropoxy)propionate whose fruity note is also very strong.

Ref: Giersch; Wolfgang Klaus, Aliphatic esters and their utilization as perfuming ingredients United States Patent 6,509,312, January 21, 2003

(-)-Ethyl (2S)-2-(1,1-dimethylpropoxy)propanoate - a more spicy note which also comprises a chamomile type under note and other notes reminiscent of ethyl 2-acetyl-4-methyl-4-pentanoate, the wine lees, linalool and also coriander

Ref: Giersch; Wolfgang Klaus, Aliphatic esters and their utilization as perfuming ingredients United States Patent 6,509,312, January 21, 2003

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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