Syntheses and Reactions of Functional Polymers. LIV. Syntheses and Polymerizations of<i>O</i>-Substituted-<i>N</i>-hydroxymaleimides
作者:Mitsuaki Narita、Takero Teramoto、Makoto Okawara
DOI:10.1246/bcsj.44.1084
日期:1971.4
The reverse Diels-Alder reaction of N-substituted maleimide adducts of furan is a useful method for the preparation of N-substituted maleimides which can not be obtained by the direct dehydration of maleamic acids owing to the formation of the corresponding isomaleimides. O-Benzyl, O-acetyl, O-benzoyl, O-benzenesulfonyl, and O-methyl-N-hydroxymaleimide adducts of furan decompose at 140–190°C to produce
呋喃的 N-取代马来酰亚胺加合物的逆 Diels-Alder 反应是制备 N-取代马来酰亚胺的有用方法,由于形成相应的异马来酰亚胺而不能通过马来酰胺酸的直接脱水获得。呋喃的 O-苄基、O-乙酰基、O-苯甲酰基、O-苯磺酰基和 O-甲基-N-羟基马来酰亚胺加合物在 140–190°C 下分解,生成相应的马来酰亚胺。进行这些马来酰亚胺与苯乙烯的均聚和共聚,并确定这些马来酰亚胺的单体反应性比和 Qe 值。所得共聚物转化为N-羟基马来酰亚胺和苯乙烯的共聚物。