Synthesis of Some Substituted 2<i>H</i>-Pyrano[3,2-<i>c</i>]pyridine-2,5(6<i>H</i>)-diones. Reaction of Their 3-Acetyl Derivatives with Methyl 3-Amino-2-butenoate
作者:Edmont V. Stoyanov、Ivo C. Ivanov
DOI:10.1080/00397919808007006
日期:1998.5
Formylation of 4-hydroxy-6-methyl-2(1H)-pyridones and subsequent cyclization with a Wittig reagent or with CH-acidic esters gave a series of title compounds. The same starting pyridones reacted with methyl 3-amino-2-butenoate directly to the corresponding 4,7-dimethylpyrano[3,2-c]pyridines.
摘要 4-羟基-6-甲基-2(1H)-吡啶酮的甲酰化和随后用维蒂希试剂或CH-酸酯环化得到一系列标题化合物。相同的起始吡啶酮与 3-氨基-2-丁烯酸甲酯直接反应生成相应的 4,7-二甲基吡喃并 [3,2-c] 吡啶。