Studies of reactions of 1,3,5-trimethylbiuret and 1,3-dimethylurea with chloroform
作者:Themistocles D. J. D'Silva、Anibal Lopes
DOI:10.1039/c39860000795
日期:——
1,3,5-Trimethylbiuret and 1,3-dimethylurea react with chloroform at temperatures above 200 °C to produce 1,3,5-trimethyl-1,3,5-triazinane-2,4-dione (4), 1,3-dimethyl-1,3,5-triazinane-2,4,6-trione (5), and 1,3,5-trimethyl-1,3,5-triazinane-2,4,6-trione [methyl isocyanate (MIC) trimer](3), besides minor quantities of other by-products, via trimerization reactions involving MIC, isocyanic acid, and N-
1,3,5-三甲基缩二
脲和1,3-二甲基
脲在200°C以上的温度下与
氯仿反应生成1,3,5-三甲基-
1,3,5-三嗪烷-2,4-二酮(4),1 ,3-二甲基-
1,3,5-三嗪烷-2,4,6-三酮(5)和1,3,5-三甲基-
1,3,5-三嗪烷-2,4,6-三酮[甲基
异氰酸酯(MIC)三聚体](3),除少量其他副产物外,还通过涉及MIC,异
氰酸和N-亚甲基
甲胺的三聚反应进行。