Configurational assignments of oximes derived from 5-formyl and 5-acyl-1,2,4-triazines |
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Authors: | Andrzej Rykowski Eliza Guzik Mieczyslaw Makosza Wolfgang Holzer |
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Abstract: | The configuration of (3-substituted)-1,2,4-triazin-5-ylcarbaldoximes and (3-substituted)alkyl-1,2,4-triazin-5-ylketoximes was determined by means of 1H-nmr, 13C-nmr, 15N-nmr and homonuclear NOE-difference spec-troscopy. Oximes resulting from reaction of 1,2,4-triazines with nitroalkanes were found to be either pure E-isomers or E/Z-mixtures with the amount of E-isomer greatly predominating. Detailed 13C-nmr data of the oximes investigated are presented. |
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