| 摘要 |
Organic sulphonyl semicarbazides are prepared by reacting the corresponding organic sulphanhydrazide with urea in solution in an aqueous acidic reaction medium. Preferred products include RSO2NHNHCONH2, R1(SO2NHNHCONH2)n and X(C6H4SO2NHNHCONH2)2 where R and R1 are aliphatic, cycloaliphatic, araliphatic or aromatic hydrocarbon radicals which are optionally further substituted, n is 1, 2 or 3 and X represents oxygen, sulphur, sulphonyl, sulphoxide or methylene. |
