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异色满酮-4及其衍生物的合成Ⅸ异香豆素并杂环化合物的合成
Synthesis of Isocoumarin - fused heterocyclic compounds
【摘要】 本文通过3,4-二氢异苯并吡喃酮-4和其β-二酮衍生物的缩合反应,合成出3,4-二氢异苯并吡喃并吲哚、并喹啉、并吡唑和并嘧啶类化合物,并进一步氧化成标题化合物。所合成的新化合物均经核磁共振光谱、红外光谱及元素分析证明其分子结构。
【Abstract】 In this paper, a series of 3,4 - dihydro - isobenzopyran -fused heterocyclic compounds (2a-6b) were synthesized from 3,4 - dihydro - isobenzopyranone - 4 and its β- diketon derivatives. Oxidation of these heterocyclic compounds by chromium trioxide furnished isocoumarin - fused heterocyclic compounds (7a - 10b), The structures of all these compounds were characterized by elemental analysis , IR and 1H NMR spectra .
【关键词】 3,4-二氢异苯并吡喃酮-4;
异香豆素;
缩合反应;
合成;
【Key words】 3; 4- dihydro - isobenzopyranone - 4; isocoumarin; condensation reaction synthesis;
【Key words】 3; 4- dihydro - isobenzopyranone - 4; isocoumarin; condensation reaction synthesis;
- 【文献出处】 有机化学 ,Chinese Journal of Organic Chemistry , 编辑部邮箱 ,1997年03期
- 【分类号】O626
- 【下载频次】249