John C. Leffingwell, Ph.D. The Pelargenes You must have
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(2R,6R)-cis-Pelargene "A" - (94% pure, ee 98%); Green, metallic, Rose Oxide like odor, with fruity, slightly earthy, and potato-like aspects. Dry down weak, green, fruity. This compound is weaker and less-substantive than (2R,6S)-trans-Pelargene "B". = (2R,6R)-2,4-dimethyl-6-phenyl-3,6-dihydro-2H-pyran It should be noted that commercial Pelargene consists of about only 1.7% of the racemic cis-Pelargene "A". Ref: Agnese Abate, Maurizio Allievi, Elisabetta Brenna, Claudio Fuganti, Francesco G. Gatti, Stefano Serra, Enzymatic Approach to and Odor Description of the Twelve Enantiomerically Pure Isomers of Pelargene®, Helvetica Chimica Acta, Volume 89, Issue 2, Date: February 2006, Pages: 177-189 Pelargene is a tradename of Quest International |
=
(2S,6S)-2,4-dimethyl-6-phenyl-3,6-dihydro-2H-pyran It should be
noted that commercial Pelargene consists of
about only 1.7% of the racemic cis-Pelargene
"A". Ref: Agnese
Abate, Maurizio Allievi, Elisabetta Brenna,
Claudio Fuganti, Francesco G. Gatti, Stefano
Serra, Enzymatic Approach to and Odor
Description of the Twelve Enantiomerically Pure
Isomers of Pelargene®, Helvetica Chimica
Acta, Volume 89, Issue 2, Date: February 2006,
Pages: 177-189 Pelargene is
a tradename of Quest International |
||
(2S,6R)-trans-Pelargene
"A" - (98% pure, ee 98%); Green, petit-grain and
orange flower-type pleasant odor, with aspects of
neroli oil. Dry down linear, but more herbal,
buccoxime-like. =
(2S,6R)-2,4-dimethyl-6-phenyl-3,6-dihydro-2H-pyran It should be
noted that commercial Pelargene consists of about
only 0.4% of the racemic trans-Pelargene
"A". Ref: Agnese
Abate, Maurizio Allievi, Elisabetta Brenna, Claudio
Fuganti, Francesco G. Gatti, Stefano Serra,
Enzymatic Approach to and Odor Description of the
Twelve Enantiomerically Pure Isomers of
Pelargene®, Helvetica Chimica Acta, Volume 89,
Issue 2, Date: February 2006, Pages:
177-189 Pelargene is a
tradename of Quest International |
=
(2R,6S)-2,4-dimethyl-6-phenyl-3,6-dihydro-2H-pyran It should be
noted that commercial Pelargene consists of
about only 0.4% of the racemic trans-Pelargene
"A". Ref: Agnese
Abate, Maurizio Allievi, Elisabetta Brenna,
Claudio Fuganti, Francesco G. Gatti, Stefano
Serra, Enzymatic Approach to and Odor
Description of the Twelve Enantiomerically Pure
Isomers of Pelargene®, Helvetica Chimica
Acta, Volume 89, Issue 2, Date: February 2006,
Pages: 177-189 Pelargene is
a tradename of Quest International |
||
(2R,6R)-cis-Pelargene
"B" - (97% pure, ee 98%); Fruity, green, metallic
odor. Dry down green fruity. =
(2R,6R)-4,6-dimethyl-2-phenyl-3,6-dihydro-2H-pyran It should be
noted that commercial Pelargene consists of about
17.7% of the racemic cis-Pelargene "B". Ref: Agnese
Abate, Maurizio Allievi, Elisabetta Brenna, Claudio
Fuganti, Francesco G. Gatti, Stefano Serra,
Enzymatic Approach to and Odor Description of the
Twelve Enantiomerically Pure Isomers of
Pelargene®, Helvetica Chimica Acta, Volume 89,
Issue 2, Date: February 2006, Pages:
177-189 Pelargene is a
tradename of Quest International |
=
(2S,6S)-4,6-dimethyl-2-phenyl-3,6-dihydro-2H-pyran It should be
noted that commercial Pelargene consists of
about 17.7% of the racemic cis-Pelargene
"B". Ref: Agnese
Abate, Maurizio Allievi, Elisabetta Brenna,
Claudio Fuganti, Francesco G. Gatti, Stefano
Serra, Enzymatic Approach to and Odor
Description of the Twelve Enantiomerically Pure
Isomers of Pelargene®, Helvetica Chimica
Acta, Volume 89, Issue 2, Date: February 2006,
Pages: 177-189 Pelargene is
a tradename of Quest International |
||
(2R,6S)-trans-Pelargene
"B" - (99% pure, ee 98%); Green, metallic, Rose
Oxide note, stronger than (2S,6R)-trans-Pelargene
"A" and (2R,6R)-cis-Pelargene "A". Dry down green,
fruity, buccoxime-like. =
(2R,6S)-4,6-dimethyl-2-phenyl-3,6-dihydro-2H-pyran It should be
noted that commercial Pelargene consists of only
about 0.8% of the racemic trans-Pelargene
"B". Ref: Agnese
Abate, Maurizio Allievi, Elisabetta Brenna, Claudio
Fuganti, Francesco G. Gatti, Stefano Serra,
Enzymatic Approach to and Odor Description of the
Twelve Enantiomerically Pure Isomers of
Pelargene®, Helvetica Chimica Acta, Volume 89,
Issue 2, Date: February 2006, Pages:
177-189 Pelargene is a
tradename of Quest International |
=
(2S,6R)-4,6-dimethyl-2-phenyl-3,6-dihydro-2H-pyran It should be
noted that commercial Pelargene consists of only
about 0.8% of the racemic trans-Pelargene
"B". Ref: Agnese
Abate, Maurizio Allievi, Elisabetta Brenna,
Claudio Fuganti, Francesco G. Gatti, Stefano
Serra, Enzymatic Approach to and Odor
Description of the Twelve Enantiomerically Pure
Isomers of Pelargene®, Helvetica Chimica
Acta, Volume 89, Issue 2, Date: February 2006,
Pages: 177-189 Pelargene is
a tradename of Quest International |
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Ionones, Irones, Damascones & Structurally Related Odorants |
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Copyright 2001-2002 - Leffingwell & Associates