| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention refers to 1,4-di-N-oxide-2,3-di(chloromethyl)quinoxaline process by halogenations of 1,4-di-N-oxide-2,3-dimethylquinoxaline in hydrochloric and acetic acid medium. Halogenating agent is gaseous chlorine or chlorine in statu nascendi. The process temperature is 70-95C. ^ EFFECT: new compounds are characterised with useful biological activity. ^ 3 cl, 5 ex |
