Amidines of the formula:
wherein R1 and R2 are alkyl groups and the sum of the carbons in R1 and R2 is from 2 to 16 are produced by cyanoethylation of the lactam:
wherein R, and R2 are as defined above. followed by reduction and finally. cychzation by dehydration The compounds produced are useful for curing epoxy and urtehane resins
式中的脒
其中 R1 和 R2 为烷基,R1 和 R2 的碳原子数总和为 2 至 16,通过内酰胺的
氰乙基化反应生成:
生产出的化合物可用于固化环氧
树脂和
尿烷树脂。