Process for preparation of fluoroformates
AssigneeIsochem
InventorsAlphonse Alarcon-Lorca, Thierry Malfroot, Jean-Pierre Senet
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Abstract
A process for the preparation of fluoroformates of the formula 1 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.
Claims6
A process for the preparation of a fluoroformate of the formula
- 3
- wherein R1 is selected from the group consisting of a saturated or unsaturated, substituted or unsubstituted and primary or secondary aliphatic, a saturated or unsaturated, substituted or unsubstituted secondary cycloaliphatic and 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 at which the ethylene carbonate is liquid.
Dependencies are inferred from the claim text.