A convenient and facile synthesis of pyridine, pyridazine, pyrimido-[4,5-<i>c</i>]pyridazine, pyrido[3,4-<i>c</i>]pyridazine, 1,6-naphthyridine and phthalazine derivatives
作者:Eman A. El Rady、Magda A. Barsy
DOI:10.1002/jhet.5570430201
日期:2006.3
reacted with 2-cyano-N-(4-methylphenyl) acetamide 1a and 2-cyano-N-(thiazol-2-yl)acetamide 1b to give the pyridinedione, 4 and pyridazine 5 derivatives in 3:1 ratio. The products 4 and 5 have been transformed into different phthalazine, pyrimido[4,5-c]-pyridazine, pyrido[3,4-c]pyridazine and 1,6-naphthyridine derivatives. The chemical structures have been confirmed by analytical and spectral analysis.
2-芳基肼基-3-丁酸乙酯2与2-氰基-N-(4-甲基苯基)乙酰胺1a和2-氰基-N-(噻唑-2-基)乙酰胺1b反应得到吡啶二酮4和哒嗪5衍生物以3:1的比例。产物4和5已被转化成不同的酞嗪,嘧啶[4,5- c ]-哒嗪,吡啶并[3,4- c ]哒嗪和1,6-萘啶衍生物。化学结构已通过分析和光谱分析得到证实。