Frontiers of Chemistry in China

Catalytic synthesis of methylene diphenyl dicarbamate from methyl phenyl carbamate and trioxane over sulfuric acid catalyst

T Li, H Li, G Qin, H Liu, Y Pei

文献索引：Li, Tao; Li, Huiquan; Qin, Guotong; Liu, Haitao; Pei, Yixia Frontiers of Chemistry in China, 2010 , vol. 5, # 1 p. 99 - 103

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被引用次数: 1

摘要

Abstract Methylene diphenyl dicarbamate (MDC) was synthesized from methyl phenyl carbamate (MPC) and trioxane using sulfuric acid (H 2 SO 4) as catalyst. The effects of reaction temperature, reaction time, molar ratio of reactants and the content of catalyst have been studied in details. The results showed that H 2 SO 4 exhibited high catalytic activity with the merits of moderate reaction velocity. Under the conditions of n (MPC)/n (trioxane) ...