DMTMM was used as condensing agent for synthesis of 1,2,4-oxadiazoles from corresponding carboxylic acids and amidoximes in the mixed solvent of THF and NMP. First, carboxylic acids were activated by DMTMM, and then reacted with amidoximes to convert to O-acylated amidoximes. The unusual solvent system THF-NMP successfully promoted dehydration process of O-acylated amidoximes and 1,2,4-oxa-diazoles were acquired in one-pot. This methodology provides a convenient and facile synthesis of 1,2,4-oxadiazoles with high yield.& COPY; 2023 Elsevier Ltd. All rights reserved.
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Lomonosov Moscow State Acad Fine Chem Technol, Moscow 119571, RussiaLomonosov Moscow State Acad Fine Chem Technol, Moscow 119571, Russia
Lukin, Alexey
Karapetian, Ruben
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Chem Divers Res Inst, Chimki 141400, Moscow Region, RussiaLomonosov Moscow State Acad Fine Chem Technol, Moscow 119571, Russia
Karapetian, Ruben
Ivanenkov, Yan
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Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, RussiaLomonosov Moscow State Acad Fine Chem Technol, Moscow 119571, Russia
Ivanenkov, Yan
Krasavin, Mikhail
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St Petersburg State Univ, Inst Chem, 26 Univ Skii Prospect, Peterhof 198504, RussiaLomonosov Moscow State Acad Fine Chem Technol, Moscow 119571, Russia
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Univ Palermo, Dipartimento Chim Organ E Paterno, Viale Sci Parco Orleans 2, I-90128 Palermo, ItalyUniv Palermo, Dipartimento Chim Organ E Paterno, Viale Sci Parco Orleans 2, I-90128 Palermo, Italy
Pace, Andrea
Pibiri, Ivana
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Univ Palermo, Dipartimento Chim Organ E Paterno, Viale Sci Parco Orleans 2, I-90128 Palermo, ItalyUniv Palermo, Dipartimento Chim Organ E Paterno, Viale Sci Parco Orleans 2, I-90128 Palermo, Italy
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No Border Univ, Dept Chem, Ar Ar, Saudi Arabia
Natl Res Ctr, Dept Photochem, Cairo, EgyptNo Border Univ, Dept Chem, Ar Ar, Saudi Arabia
El-Sayed, Wael A.
Ali, Omar M.
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Menoufia Univ, Fac Sci, Dept Chem, Shibin Al Kawm, EgyptNo Border Univ, Dept Chem, Ar Ar, Saudi Arabia
Ali, Omar M.
Hendy, Hend A.
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Menoufia Univ, Fac Sci, Dept Chem, Shibin Al Kawm, EgyptNo Border Univ, Dept Chem, Ar Ar, Saudi Arabia
Hendy, Hend A.
Abdel-Rahman, Adel A. H.
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No Border Univ, Dept Chem, Ar Ar, Saudi Arabia
Menoufia Univ, Fac Sci, Dept Chem, Shibin Al Kawm, EgyptNo Border Univ, Dept Chem, Ar Ar, Saudi Arabia