Aykut A. Ikizler
Karadeniz Technical University
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Monatshefte Fur Chemie | 1992
Aykut A. Ikizler; Kemal Sancak
SummaryA series of hydroxamic acid ethoxycarbonylhydrazides was obtained by reactions of ester ethoxycarbonylhydrazones with hydroxylamine. The corresponding 3-substituted 4-hydroxy-4,5-dihydro-1,2,4-triazol-5-ones were synthesized by cyclization of these hydroxamic acid derivatives in basic medium.ZusammenfassungDurch Reaktion von Esterethoxycarbonylhydrazonen und Hydroxylamin wurde eine Reihe von Hydroxamsäureethoxycarbonylhydraziden gewonnen; Cyclisierung dieser Verbindungen durch Base gab die entsprechenden 3-substituierten 4-Hydroxy-4,5-dihydro-1,2,4-triazol-5-one.
Monatshefte Fur Chemie | 1991
Aykut A. Ikizler; Aysun Ikizler; Nuri Yildirim
SummaryReactions of 3-substituted-4-amino-4,5-dihydro-1,2,4-triazol-5-ones with salicylaldehyde,o-chlorobenzaldehyde andp-tolualdehyde were studied, and 14 new benzylidenamino compounds were obtained.ZusammenfassungDie Reaktionen von 3-substituierten 4-Amino-4,5-dihydro-1,2,4-triazol-5-onen mit Salicylaldehyd,o-Chlorobenzaldehyd undp-Tolualdehyd wurden untersucht und 14 Benzylidenaminoverbindungen dargestellt.
Monatshefte Fur Chemie | 1992
Aykut A. Ikizler; Haydar Yüksek; Şule Bahçeci
SummaryThe proton magnetic resonance spectra of 12 azoles were measured in neutral and acidic solvents. The protonation shifts observed by comparison of the spectra inDMSO-d6 andTFA were attributed to an amidinium type resonance of the resulting cations. The synthesis and characterization of the azoles are also discussed.ZusammenfassungEs wurden die1H-NMR-Spektren von 12 Azol-Verbindungen in neutralem (DMSO-d6) und azidischem (TFA) Lösungsmittel gemessen und die chemischen Verschiebungswerte verglichen. Der Unterschied beider Werte beruht höchstwahrscheinlich auf einer Amidinium-Typ Resonanz der im azidischen Bereich entstandenen Kationen. Im Rahmen dieser Arbeit wurden 12 Azol-Verbindungen synthetisiert und beschrieben.
Spectroscopy Letters | 1991
Aykut A. Ikizler; Aysun Ikizler; Yunus Erdogan; Mevlüt Serdar
Abstract The electron-impact induced fragmentation of some 4,5-dihydro-1,2,4-triazole derivatives was studied by conventional mass spectrometry. Some major fragment ions observed in the spectra were interpreted and fragmentation patterns involving McLafferty rearrangements were proposed.
Organic Preparations and Procedures International | 1993
Aykut A. Ikizler; Haydar Yüksek
Collection of Czechoslovak Chemical Communications | 1995
Aykut A. Ikizler; Kemal Sancak
Journal of Heterocyclic Chemistry | 1998
Aykut A. Ikizler; Nuri Yildirim
Collection of Czechoslovak Chemical Communications | 1994
Aykut A. Ikizler; Haydar Yüksek
Magnetic Resonance in Chemistry | 1993
Aykut A. Ikizler; Aysun Ikizler; Haydar Yüksek
Indian Journal of Chemistry Section B-organic Chemistry Including Medicinal Chemistry | 2003
Bahittin Kahveci; Olcay Bekircan; Mevluet Serdar; Aykut A. Ikizler