| 摘要 |
Stabilizers are compounds prepared by the condensation of a thiourazole of general formula(I):- (where X = oxygen, sulphur, or imino group. R= hydrogen, C1-8 alkyl) with an ,beta unsaturated compound, pref., beta unsaturated acids, ketones, amides, aldehydes or compounds of formula HR1C=C(R2)C(O)R3. (where R1, R2= H, alkyl, R3=H, hydroxyl, alkyl ether, alkyl.)
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