Synthesis of isoxazolo[4,5-d]pyridazin-4(5H)-ones and 4-acyl-5-hydroxy-3(2H)-pyridazinones |
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Authors: | Bernard Chantegrel Christian Deshayes Bernard Pujol Zhong Jia Wei |
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Abstract: | The title compounds were prepared from ethyl 5-acyl- or 5-(1-hydroxyethenyl)isoxazole-4-carboxylates which in turn were prepared from ethyl 3-methylamino-2-butenoate or 3(2H)-furanones. |
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