Process for the preparation of N-cyanoimidocarbonates
AssigneeSKW Trostberg Aktiengesellschaft
InventorsFranz Thalhammer, Stefan Weiss
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Abstract
The present invention provides a process for the preparation of N-cyanoimidocarbonates of the general formula: ##STR1## in which R.sup.1 and R.sup.2 are the same and are alkyl radicals containing up to 4 carbon atoms or R.sup.1 and R.sup.2 are joined together to give an ethylene or propylene chain which is optionally substituted by an alkyl radical containing up to 3 carbon atoms, wherein an imidocarbonate obtained in aqueous alkaline solution from the appropriate alcohol and cyanogen chloride is added with an acid to an aqueous solution of cyanamide in such a manner that the reaction mixture has a pH value of from 3 to 8.
Claims23
Process for the preparation of N-cyanoimidocarbonates of the general formula:
- ##STR3## in which R.sup.1 and R.sup.2 are the same and are alkyl radicals containing up to 4 carbon atoms or R.sup.1 and R.sup.2 are joined together to give an ethylene or propylene chain which is optionally substituted by an alkyl radical containing up to 3 carbon atoms, wherein an imidocarbonate obtained in aqueous alkaline solution from the appropriate alcohol and cyanogen chloride is added with an acid to an aqueous solution of cyanamide in such a manner that the reaction mixture has a pH value of from 3 to 8.
Dependencies are inferred from the claim text.