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Imidazole derivatives R 0190First Acetylenic Derivatives of Stable 3-Imidazoline Nitroxides. -The Stephens-Castro reaction of Cu(I) salts (II) of alkynes with imidazoline-3-oxide (I) is used to synthesize title compounds (III) in high yields. -(VASILEVSKY*, S. F.; KLYATSKAYA, S. V.; KOROVNIKOVA, O. L.; STASS, D. V.; AMITINA, S. A.; GRIGIR'EV, I. A.; ELGUERO, J.; Tetrahedron Lett. 45 (2004) 41, 7741-7743; Inst. Chem. Kinet. Combust., Sib. Branch Russ. Acad. Sci., Novosibirsk 630090, Russia; Eng.) -M. Paetzel 03-126