| 摘要 |
PURPOSE: A method for preparing N-cyclohexylmaleimide is provided to effectively control a temperature during preparation, to reduce risks, to suppress natural polymerization of CHMI(N-cyclohexylmaleimide), and to obtain a large amount of CHMI. CONSTITUTION: A method for preparing CHMI comprises: a step of dissolving maleic anhydride in an organic solvent and adding cyclohexylamine to prepare N-cyclohexylmaleimide acid; a step of mixing N-cyclohexylmaleimide acid and alcohol and preparing N-cyclohexylmaleimide acid ester; and a step of imidizing N-cyclohexylmaleimide acid ester. The organic solvent is toluene. The alcohol is isobutyl alcohol. |
