| 摘要 |
A process for preparing 2,3-dichlorosulphonyl-acrylonitriles is disclosed by reaction of 3-sulphonyl-propionitriles of the formula R1-SO2-CH2-CH2-CN wherein R1 denotes optionally substituted aryl, aralkyl, alkyl or cycloalkyl with a chlorination agent in the presence of a basic catalyst at elevated temperature.
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