Claims
- 1. A ketone-containing product prepared according to the process comprising the steps of (1) reacting at a temperature in the range of from about -10.degree. C. up to about 50.degree. C. trimethyl orthoformate with .beta.-ionone according to the reaction: ##STR219## to form a ketal-containing composition with the mole ratio of .beta.-ionone:trimethyl orthoformate being from about 1:1 to about 1:2; (ii) then reacting the ketal-containing composition with allyl alcohol at a temperature in the range of from about 120.degree. C. up to about 220.degree. C. according to the reaction: ##STR220## in order to form a diallyl ketal with the mole ratio of ketal-containing composition:allyl alcohol varying from about 1:1 up to about 1:3; then rearranging the resulting diallyl ketal at a temperature of from about 120.degree. C. up to about 220.degree. C. according to the reaction: ##STR221## at a pH of between 2 and 6.5 in the presence of a citric acid catalyst and then fractionally distilling the resulting product at a vapor temperature of 105.degree.-128.degree. C. at 2.5 mm/Hg pressure.
- 2. A process for augmenting or enhancing the aroma of a consumable material selected from the group consisting of perfume compositions, perfumed articles and colognes comprising the step of adding to said consumable material an aroma augmenting or enhancing quantity of the product defined according to claim 1.
- 3. The product of claim 1 wherein in the process, the rearrangement reaction: ##STR222## is carried out at 150.degree. C.
- 4. A process for augmenting or enhancing the aroma of a consumable material selected from the group consisting of perfume compositions, perfumed articles and colognes comprising the step of adding to said consumable material, an aroma augmenting or enhancing quanitity of the product defined according to claim 3.
Parent Case Info
This is a divisional of application Ser. No. 602,646, filed 4/20/84 now U.S. Letters Pat. No. 4,548,743 issued on Oct. 22, 1985.
US Referenced Citations (4)
Non-Patent Literature Citations (3)
Entry |
Denmark et al, J.A.C.S., vol. 104, p. 4972 (1982). |
Daub et al, Tet. Letters, vol. 24(41), pp. 4397-4400 (1983). |
Hurd et al, J.A.C.S., vol. 60, p. 1908 (1938). |
Divisions (1)
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Number |
Date |
Country |
Parent |
602646 |
Apr 1984 |
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