FIELD: chemical industry. SUBSTANCE: substituted 2-(phenylamino)-2-imidazolines of formula I: wherein R1= R2= Cl and R3= H, CH3, F, are prepared by condensation of anilines with 1-benzoylimidazolidin-2-one in phosphorus oxychloride in the presence of lithium halides or quaternary ammonium bases. Presence of lithium salts reduces reaction time up to 20-24 hours. EFFECT: high quality of the desired compounds. 6 ex
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Authors
Dates
1999-06-20—Published
1997-09-02—Filed