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

The 2-methyl-4-(2',2',3'-trimethyl-3'-cyclopenten-1'-yl) -4-penten-1-ols

You must have Java installed to view the molecular visualization on this page
Photo by permission of M. Roudintska - Art & Parfum

(-)-(1'R,2R)-2-methyl-4-(2',2',3'-trimethyl-3'-cyclopenten-1'-yl) -4-penten-1-ol - elegant and powerful sandalwood note (preferred of the four isomers)

= (-)-(1'R,2R)-Firsantol®

Ref: Chapuis, et al., United States Patent 5,696,075, December 9, 1997

Firsantol® is a registered trademark of Firmenich SA

(+)-(1'S,2S)-2-methyl-4-(2',2',3'-trimethyl-3'-cyclopenten-1'-yl) -4-penten-1-ol - odor is less rich in the precious "lait de santal" type odor character present in the (-)-(1'R,2R)- and (-)-(1'R,2S)- isomers

= (+)-(1'S,2S)-Firsantol®

Ref: Chapuis, et al., United States Patent 5,696,075, December 9, 1997

Firsantol® is a registered trademark of Firmenich SA

(+)-(1'S,2R)-2-methyl-4-(2',2',3'-trimethyl-3'-cyclopenten-1'-yl) -4-penten-1-ol - odor is less rich in the precious "lait de santal" type odor character present in the (-)-(1'R,2R)- and (-)-(1'R,2S)- isomers

= (+)-(1'S,2R)-Firsantol®

Ref: Chapuis, et al., United States Patent 5,696,075, December 9, 1997

Firsantol® is a registered trademark of Firmenich SA

(-)-(1'R,2S)-2-methyl-4-(2',2',3'-trimethyl-3'-cyclopenten-1'-yl) -4-penten-1-ol - sandalwood note is not as powerful as the (-)-(1'R,2R)-isomer but is accompanied of a more marked woody-cedar character

= (-)-(1'R,2S)-Firsantol®

Ref: Chapuis, et al., United States Patent 5,696,075, December 9, 1997

Firsantol® is a registered trademark of Firmenich SA

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

HOME

Copyright 2001-2002 - Leffingwell & Associates