c
-2,2,3-trimethylcyclopent-3-enyl-but-3-en-2-one.gif)
(-)-(3E/Z)-4-((1'R)-2',2',3'-trimethylcyclopent-3-enyl)but-3-en-2-one
(a mixture of E:Z-isomers (7:2-ratio) - Odour
description: floral, ionone alpha, woody,
fruity.
Prepared from
campholytic aldehyde derived from
(R)-campholenic aldehyde (ca. 80% ee)
=
(-)-(3E/Z)-4-[(1'R)-2',2',3'-trimethylcyclopent-3-en-1-yl]but-3-en-2-one
Ref: Jerzy A.
Bajgrowicz, Urs Mueller,
CYCLOPENTANE/CYCLOPENTENE
ALDEHYDE OR KETONE DERIVATIVES AND THEIR USE AS
ODORANTS,
United States Patent Application 20090298950
(December 3, 2009)
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c
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-2,2,3-trimethylcyclopent-3-enyl-but-3-en-2-one.gif)
(+)-(3E/Z)-4-((1'S)-2',2',3'-trimethylcyclopent-3-enyl)but-3-en-2-one
(a mixture of E:Z-isomers (7:2-ratio) - Odour
description: agrestic, woody (thujone-type),
sweet, powdery, ionone, floral,
creamy.
Prepared from
campholytic aldehyde derived from
(S)-campholenic aldehyde (ca. 30% ee)
=
(+)-(3E/Z)-4-[(1'S)-2',2',3'-trimethylcyclopent-3-en-1-yl]but-3-en-2-one
Ref: Jerzy A.
Bajgrowicz, Urs Mueller,
CYCLOPENTANE/CYCLOPENTENE
ALDEHYDE OR KETONE DERIVATIVES AND THEIR USE AS
ODORANTS,
United States Patent Application 20090298950
(December 3, 2009)
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