Process for preparing acetoacetamide-N-sulfofluoride
AssigneeHoechst Aktiengesellschaft
InventorsHartmut Pietsch, Karl Clauss, Harald Jensen, Erwin Schmidt
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Abstract
Process for preparing acetoacetamide-N-sulfofluoride by reacting amidosulfofluoride at a temperature of from 50.degree. to 100.degree. C with diketene, optionally in the presence of inert solvents or diluents.
Claims7
A process for the preparation of acetoacetamide-N-sulfofluoride of the formula (I) ##STR3## which comprises reacting amidosulfofluoride (ASF), in the liquid phase, at a temperature of from 50.degree. to 100.degree. C with diketene, in the presence of an inert diluent or solvent which is a member selected from the group consisting of aliphatic and aromatic hydrocarbons, ethers, nitriles and halogenohydrocarbons.
A process for the preparation of acetoacetamide-N-sulfofluoride of the formula (I) ##STR4## which comprises reacting amidosulfofluoride (ASF), in the liquid phase, at a temperature of from 50.degree. to 100.degree. C with diketene, in the presence of an inert diluent or solvent which is a member selected from the group consisting of pentane, hexane, cycylohexane, gasoline, petroleum ethers, benzene, toluene, xylene, dimethyl ether, diethyl ether, diisopropyl ether, dimethoxyethane, tetrahydrofurane, dioxane, acetonitrile, methyl chloride, methylene chloride, chloroform, carbon tetrachloride and mixtures thereof.
A process for preparing acetoacetamide-N-sulfofluoride of the formula (I) ##STR5## which comprises reacting amidosulfofluoride (ASF) at a temperature of from 50.degree. to 100.degree. C with diketene in the absence of a diluent or solvent.
Dependencies are inferred from the claim text.