Neue acetonylsubstituierte Azole I. 5-Acetonyl-1,2,4-oxadiazole |
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Authors: | Börries Kübel |
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Institution: | (1) Hoechst AG, D-6230 Frankfurt am Main 80, Bundesrepublik Deutschland |
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Abstract: | Aliphatic amidoximesR—C (NH2)=NOH react with diketene to yield 5-acetonyl-3-alkyl-1,2,4-oxadiazoles, which are susceptible to a wide variety of reactions at the keto-group as well as at the methylene-group. Their transformations into 1-methyl-2-oxadiazolyl-vinylN,N-dimethylcarbamates, 2-chloro-1-oxadiazolylpropenes, 1-oxadiazolyl-2-(1,2,4-triazol-1-yl)propenes, 1,1-dichloro-1-oxadiazolylacetones and 3-hydroxy-2-oxadiazolyl-crotonic amides are described as well as their reactions with diazonium salts, with sodium nitrite and with carbon disulfide. Further products obtained are carbamates of of 1-oxadiazolyl-2-oxo-propane-1-oximes, 2-chloro-2-oxadiazolylvinyl phosphates and an oxadiazolyl pyrimidine.Herrn Prof. Dr.Klaus Weissermel zu seinem 60. Geburtstag. |
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Keywords: | Active methylene group Ketone 1 2 4-Oxadiazole Vinyl dimethylcarbamate 5-Vinyl-oxadiazole |
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