Process for preparation of fluoroformates
US6613929B2 · kind B2 · utility
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6Claims
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Assignee
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Key dates
| Filing date | Dec 18, 2002 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | Dec 18, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of fluoroformates of the formula wherein R1 is a saturated or unsaturated, substituted or unsubstituted and primary or secondary aliphatic, a saturated or unsaturated, substituted or unsubstituted secondary cycloaliphatic or a substituted or unsubstituted aromatic or heteroaromatic, and n is equal to 1, 2 or 3, comprising reacting a corresponding chloroformate of formula I with an alkali metal fluoride in ethylene carbonate at a temperature wherein the ethylene carbonate is liquid whereby it is possible to very rapidly obtain the fluoroformates with excellent yields and high purity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.