N-substituted maleimide represented by formula (2):
is produced from N-substituted maleamic acid monoester represented by formula (1):
in the presence of an acid catalyst by elimination of an alcohol from the monoester. The above N-substituted maleamic acid monoester represented by formula (1) is produced by esterification of N-substituted maleamic acid represented by formula (3):
with an alcohol R² -OH in the presence of an acid catalyst.
以式(2)代表的 N-取代马来
酰亚胺:
由式(1)代表的 N-取代马来
酰亚胺酸单酯在酸催化剂存在下,通过消除单酯中的醇而制得:
在酸催化剂存在下,通过消除单酯中的醇而制得。上述由式(1)代表的 N-取代马来酰胺酸单
酯类由由式(3)代表的 N-取代马来酰胺酸与醇 R² -OH 在酸催化剂存在下进行酯化反应制得:
与醇 R² -OH 在酸催化剂存在下进行酯化反应制得。