Process for the preparation of 4-acyloxyazetidin-2-one by singlet oxygen oxidation
US4940520A · kind A · utility
5Cited by
6References
16Claims
0Family size
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Key dates
| Filing date | Jun 21, 1989 |
| Grant date | Jul 10, 1990 |
| Priority date | — |
| Expiry date | Jun 21, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D205/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The 4-acyloxyazetidin-2-ones, which are intermediates in the production of carbapenems and penems, are produced from 4-furanylazetidin-2-ones by singlet oxygen oxidation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.