Synthesis of 1-ethylpyrazole-4-carbaldehydes, 1,1’-methylenebis(3,5-dimethylpyrazole-4-carbaldehyde), and Schiff bases derived therefrom |
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| Authors: | A S Potapov A I Khlebnikov V D Ogorodnikov |
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| Institution: | (1) Polzunov Altai State Technical University, pr. Lenina 46, Barnaul, 656099, Russia;(2) Institute of Petroleum Chemistry, Siberian Division, Russian Academy of Sciences, pr. Akademicheskii 3, Tomsk, 634021, Russia |
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| Abstract: | New pyrazole-containing aldehydes, 1-ethylpyrazole-4-carbaldehyde, 1-ethyl-3,5-dimethylpyrazole-4-carbaldehyde, and 1,1’-methylenebis(3,5-dimethylpyrazole-4-carbaldehyde), were synthesized by the Vilsmeier reaction. Their reactions with primary amines (aniline, hydrazine, ethylenediamine, p-phenylenediamine, benzidine) gave the corresponding Schiff bases. |
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