Bazı 3,4-disubstitue-4,5-dihidro-IH-I,2,4-triazol-5-on bileşiklerinin N-asetil türevlerinin sentezi

Abstract

ÖZET Bu çalışmada, bazı 3-aM(aril)-4-(2-tiyenilmetilenamino)-4,5-dihidro-lH-l,2,4- triazol-5-on ve 3-alkü(arü)^(2-fürilmetüenamino)-4,5-dihidro-lH-l,2,4-triazol-5-on bileşiklerinin asetik anhidrid ile reaksiyonlan incelenmiş, 9 yeni l-asetil-3-alkil(aril)-4-(2- tiyenilmetilenamino)-4,5-dihidro-lH-l,2,4-triazol-5-on ve l-asetil-3-alkil(aril)-4-(2-furil- metilenamino)-4,5-dihidro-lH-l,2,4-triazol-5-on bileşikleri sentezlenmiştir. Çalışmada elde edilen yeni bileşiklerin yapı aydınlatmaları için mikroanaliz, İR, lK NMR ve UV spektroskopisi yöntemleri kullanılmıştır. Anahtar Kelimeler: l-Asetü-3-alkü(aril)-4-[2-tiyenil(furil)metilenamino]-4,5-dihidro- lH-l,2,4-triazol-5-on, asetik anhidrid.

SUMMARY In this study, the reactions of some 3-alkyl(aryl)-4-(2-thienylmethylenamino)-4,5- dihydro-lH-l,2,4-triazol-5-onesand 3-alkyl(aryl)-4-(2-furyIniethylenamino)-4,5-dihydro- lH-l,2,4-triazol-5-ones with acetic anhydride were investigated and 9 new l-acetyl-3- alkyl(aryl)^-(2-thienylmethylenamino)-4,5-dihydro-lH-l,2J4-triazol-5-ones and 1- acetyl-3-alkyl(aryl)-4-(2-furylmethylenamino)-4,5-dihydro-lH-lJ2,4-triazol-5-ones were synthesized. In order to identify the new compounds synthesized in the study, combustion analyses and spectroscopic methods including IR, JH NMR and UV were used. Keywords: l-Acetyl-3-alkyl(aryl)^-[2-tMenyl(&ryl)memylenamino]-4,5-dihydro-lH- l,2,4-triazol-5-one, acetic anhydride. VI