Regioselective Synthesis of Annulated Quinoline and Pyridine Derivatives by Silver-Catalyzed 6-endo-dig Cycloisomerization
作者:K. Majumdar、Raj Nandi、Sintu Ganai、Abu Taher
DOI:10.1055/s-0030-1259097
日期:2011.1
3H-pyrano[3,2-f]quinoline-3-one, 4-methyl-4,7-phenanthrolin-3(4H)-one, and 1,3-dimethylpyrido[3,2-d]pyrimidine-2,4(1H,3H)-dione derivatives have been synthesized by hitherto unreported silver-catalyzed 6-endo-dig mode of cycloisomerization from various N-propargylated heterocyclic compounds. The silver-catalyzed reaction provides the synthesis of potential bioactive compounds in excellent yields.
3H-吡喃并[3,2-f]喹啉-3-酮、4-甲基-4,7-二氢吩噻啉-3(4H)-酮和1,3-二甲基吡啶并[3,2-d]嘧啶-2,4(1H,3H)-二酮衍生物已经通过迄今未报道的银催化的6-endo-dig模式的环异构化反应从各种N-炔丙基化的杂环化合物中合成。这种银催化的反应为合成潜在的生物活性化合物提供了极佳的产率。