synthesize other valuable heterocycles is described. These carbaldehydes are obtained in excellent yields through the Vilsmeyer-Haack reaction of flavanones and azaflavanones. Protocols towards the synthesis of new heterocycles, such as 3H-chromeno[3–c]quinolines, (Z/E)-2-aryl-4-chloro-3-styryl-2H-chromenes, and (E)-2-aryl-4-chloro-3-styrylquinoline-1(2H)-carbaldehydes were established. Altogether, we
Chromenes 和
喹啉被认为是药物
化学中的重要支架。在此,描述了有效使用色
烯-和
喹啉-3-
甲醛合成其他有价值的杂环。这些
甲醛通过
黄烷酮和
氮杂
黄烷酮的 Vilsmeyer-Haack 反应以极好的收率获得。合成新杂环的方案,例如 3H-chromeno[3-c]quinolines、(Z/E)-2-aryl-4-chloro-3-styryl-2H-chromenes 和 (E)-2-aryl -4-chloro-3-styrylquinoline-1(2H)-carbaldehydes 被建立。总之,我们证明了色
烯和
喹啉 3-
甲醛作为构建块的价值。