METHOD OF PREPARING SUBSTITUTED 2-(PHENYLAMINO)-2- IMIDAZOLINES

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. Pre...

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Hauptverfasser: NIKOL'SKAJA S.K, VITVITSKAJA A.S, KARAVAN V.S, SHAVVA A.G, BELOV V.N, BOGDANOV E.G, SOKOLOV A.E, SHCHEDROVICH K.I, KATSNEL'SON E.Z
Format: Patent
Sprache:eng ; rus
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Zusammenfassung: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