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US 5,288,701 AGranted
Derivatives of dihydrocampholenic aldehyde
AssigneeGivaudan-Roure Corporation
InventorJosianne Baudin
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AssigneeGivaudan-Roure Corporation
InventorJosianne Baudin
Estimating the term…
The invention concerns novel odorants, namely derivatives of dihydrocampholenic aldehyde having the formula ##STR1## wherein R is ##STR2## one of the dotted lines in each of (a) and (b) represents an additional bond, and, R.sup.1, R.sup.2 and R.sup.3 are selected from the group consisting of hydrogen and alkyl groups of from one to four carbon atoms, with the proviso that R.sup.3 is present only when the additional bond is between the carbon atoms designated as .beta. and .gamma.. The invention also concerns odorant compositions containing the dihydrocampholenic aldehyde derivatives and methods for making same.
A compound of the formula:
An odorant composition having a compound the formula:
A method for improving the odor of an odorant composition which comprises adding thereto an olfactorily effective amount of a compound of the formula:
Dependencies are inferred from the claim text.
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No related US applications are recorded in the indexed filing history.
Compounds containing an alicyclic ring not condensed with another ring: the ring containing less than six carbon atoms
Alcohols containing rings other than six-membered aromatic rings: containing five-membered rings
By reactions not involving the formation of >C = O groups: by hydrogenation of carbon-to-carbon double or triple bonds
By reactions not involving the formation of >C = O groups: by isomerisation; by change of size of the carbon skeleton
Term ended 1 Jul 2011 (estimated)
USPTO file history isn’t available for this patent, so only indexed dates are shown.
The invention concerns novel odorants, namely derivatives of dihydrocampholenic aldehyde having the formula ##STR3## wherein:
R is ##STR4## one of the dotted lines in each of (a) and (b) represents an additional bond, and,
R.sup.1, R.sup.2 and R.sup.3 are selected from the group consisting of hydrogen and alkyl groups of from one to four carbon atoms, with the proviso that R.sup.3 is present only when the additional bond is between the carbon atoms designated as .beta. and .gamma..
The compounds of formula I are obtained as the essential reaction products of a process comprising
a) reacting dihydrocampholenic aldehyde with a compound of the formula ##STR6## under the conditions of an aldol condensation,
b) subjecting a compound of the formula ##STR7## to a deconjugation, and, if desired, an alkylation,