| 摘要 |
A compound which corresponds to the following general formula I <IMAGE> (I) wherein R1, R2, and R3 which may be the same or different, each represents hydrogen or methyl, and a process for the preparation thereof which comprises reacting triazolidine-3,5-dione with an at least equivalent quantity of an epihalohydrin or beta -methyl epihalohydrin and reacting the resulting material with a hydrogen halide acceptor. |
