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Preparation of 3-hydroxy-3,6-dimethylhexahydrobenzofuran-2-one and derivatives thereof
US11434216B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11434216-B2 |
| Application number | US-202117231877-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 15, 2021 |
| Priority date | Sep 11, 2015 |
| Publication date | Sep 6, 2022 |
| Grant date | Sep 6, 2022 |
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- Title
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Abstract
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The present invention relates to the synthesis of intermediate compounds which can be used in the synthesis of mint lactone and related compounds, including 3,6-dimethylhexahydrobenzofuran-2-ones, isomers, and other derivatives.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of producing (R)-1-(4-methylcyclohex-1-en-1-yl)ethanone, having the general formula (XIX): Comprising the steps of: (a) providing a compound having the general formula (VI): and (b) dehydrating said compound, to produce the compound of Formula (XIX). 2. The method of claim 1 , wherein said dehydration is catalyzed by an acid. 3. The method of claim 2 , wherein said acid is a cationic resin. 4. The method of claim 2 , wherein said dehydration is performed continuously. 5. The method of claim 2 , wherein said dehydration is performed at an elevated temperature. 6. The method of claim 5 , wherein said temperature is between 80° C. and 140° C. 7. The method of claim 3 , wherein said acid is an Amberlyst-type cationic resin. 8. The method of claim 2 , wherein said dehydration is carried out in toluene solvent. 9. The method of claim 6 , wherein said temperature is between 110° C. and 130° C.
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Classifications
Taste or flavour enhancing agents · CPC title
Formulations or additives for perfume preparations (essential oils or perfumes per se C11B9/00) · CPC title
having oxygen or sulfur as the only hetero atoms · CPC title
by dehydration · CPC title
with oxygen as the only hetero atom · CPC title
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Frequently asked questions
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- What does patent US11434216B2 cover?
- The present invention relates to the synthesis of intermediate compounds which can be used in the synthesis of mint lactone and related compounds, including 3,6-dimethylhexahydrobenzofuran-2-ones, isomers, and other derivatives.
- Who is the assignee on this patent?
- P2 Science Inc
- What technology area does this patent fall under?
- Primary CPC classification C07D307/83. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Sep 06 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).