Аннотация:
Ethyl 5-aroyl-4-pyrone-2-carboxylates react with hydroxylamine in ethanol at –20°C for 30 days to produce ethyl 4-(5-arylisoxazol-4-yl)-2,4-dioxobutanoates (yields 20–67%). The similar reaction of diethyl 4-pyrone-2,5-dicarboxylate gives ethyl 4-oxo-4H-pyrano[3,4-d]isoxazole-6-carboxylate in 37% yield.
Образец цитирования:
D. L. Obydennov, L. R. Khammatova, V. Ya. Sosnovskikh, “Synthesis of ethyl 4-(isoxazol-4-yl)-2,4-dioxobutanoates from ethyl 5-aroyl-4-pyrone-2-carboxylates and hydroxylamine”, Mendeleev Commun., 27:2 (2017), 172–174
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/mendc1934
https://www.mathnet.ru/rus/mendc/v27/i2/p172
Эта публикация цитируется в следующих 8 статьяx:
Janos Sapi, Stéphane Gérard, Comprehensive Heterocyclic Chemistry IV, 2022, 212
Franca M. Cordero, Donatella Giomi, Fabrizio Machetti, Comprehensive Heterocyclic Chemistry IV, 2022, 308
Nenad Joksimović, Nenad Janković, Goran Davidović, Zorica Bugarčić, “2,4-Diketo esters: Crucial intermediates for drug discovery”, Bioorganic Chemistry, 105 (2020), 104343
Dmitrii L. Obydennov, Alena E. Simbirtseva, Sergey E. Piksin, Vyacheslav Y. Sosnovskikh, “2,6-Dicyano-4-pyrone as a Novel and Multifarious Building Block for the Synthesis of 2,6-Bis(hetaryl)-4-pyrones and 2,6-Bis(hetaryl)-4-pyridinols”, ACS Omega, 5:51 (2020), 33406
D. L. Obydennov, L. R. Khammatova, V. D. Steben'kov, V. Y. Sosnovskikh, “Synthesis of novel polycarbonyl Schiff bases by ring-opening reaction of ethyl 5-acyl-4-pyrone-2-carboxylates with primary mono- and diamines”, RSC Adv., 9:68 (2019), 40072
D. L. Obydennov, A. I. El-Tantawy, M. Yu. Kornev, V. Ya. Sosnovskikh, “Reactions of carbamoylated amino enones with 3-substituted chromones for the preparation of 2-pyridones and chromeno[4,3-b]pyridine-2,5-diones”, Mendeleev Commun., 29:2 (2019), 234–236
O. B. Bondarenko, Z. M. Garaev, A. I. Komarov, L. I. Kuznetsova, S. V. Gutorova, D. A. Skvortsov, N. V. Zyk, “Nitrosylsulfuric acid in the synthesis of 5-chloroisoxazoles from 1,1-dichlorocyclopropanes”, Mendeleev Commun., 29:4 (2019), 419–420
D. L. Obydennov, L. R. Khammatova, O. S. Eltsov, V. Y. Sosnovskikh, “A chemo- and regiocontrolled approach to bipyrazoles and pyridonesviathe reaction of ethyl 5-acyl-4-pyrone-2-carboxylates with hydrazines”, Org. Biomol. Chem., 16:10 (2018), 1692
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