Synthesis of ynamides
US7183432B2 · kind B2 · utility
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18Claims
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Assignee
Inventors
Key dates
| Filing date | Mar 29, 2005 |
| Grant date | Feb 27, 2007 |
| Priority date | — |
| Expiry date | Aug 17, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C233/09
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method of synthesizing diacetylenic amides is described. The key steps of the invention include the reaction of an aldehyde with the monoanion of a diacetylene and the reductive removal of a propargylic alcohol. The invention offers the first known method of synthesizing diacetylenic amides that are naturally isolated from Echinacea through a direct and flexible route.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.