overall yield and shorter reaction times relative to their batch counterparts. Novel 3-alkyl and 3-methoxyindoles were synthesized from their corresponding amino ketone and ester precursors by flow sequences featuring base-free alkylation with methyl bromoacetate in DMF, saponification, and cyclization with acetic anhydride and Et3N.
连续流
化学在Heumann
吲哚过程中提高了效率。通过三个连续的步骤制备3-取代的
吲哚,相对于其批次对应物,其总产率更高,反应时间更短。新型3-烷基和3-甲氧基
吲哚是由其相应的
氨基酮和酯前体通过流动顺序合成的,其特征在于在
DMF中用
溴乙酸甲酯进行无碱烷基化,皂化并用
乙酸酐和Et 3 N环化。