Process for the preparation of 6,6-dimethylhept-1-en-4-yn-3-ol
US6570044B2 · kind B2 · utility
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4Claims
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Key dates
| Filing date | Jul 17, 2001 |
| Grant date | May 27, 2003 |
| Priority date | — |
| Expiry date | Jul 17, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C29/42
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention provides a process for the preparation of 6,6-dimethylhept-1-en-4-yn-3-ol comprising of reacting t-butylacetylene with a proton-extracting agent selected from the group consisting of an organometallic compound and metallic lithium to form a t-butylacetylide, reacting the acetylide with acrolein at temperatures between −40° C. to +20° C., quenching the reaction mixture and isolating the product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.