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论文类型：期刊论文
发表时间：2009-07-01
发表刊物：TENSIDE SURFACTANTS DETERGENTS
收录刊物：SCIE
卷号：46
期号：4
页面范围：228-231
ISSN号：0932-3414
关键字：Synthesis; cationic surfactant; 3-(dimethylamino)propane-1,2-di-alkylcarbamate
摘要：Two cationic surfactant intermediates were synthesized by improved method. The alkyl isocyanates, dodecyl isocyanate (1a) and tetradecyl isocyanate (1b), were synthesized by corresponding alkyl amines and bis(trichloromethyl) carbonate (BTC) in anhydrous toluene. The yield of 1a-b reached 86%, the product was colorless liquid and the purity was measured more than 98% by GC. The target products, 3-(dimethylamino)propane-1,2-di-dodecylcarbamate (2a) and 3-(dimethylamino) propane-1,2-di-tetradecylcarbamate (2b) were synthesized by 1-dimethylamino-2,3-propanediol and alkyl isocyanates with triethylamine as catalyst, the yield of 2a-b was 65 %.